Basic Info.
Mathematical Model
Linear
Function
Automatic Control
Certification
CCC, ISO: 9001, CE
Product Description
WGQH generator motor soft starter
6KV,10KV/300KW-9000KW
Preface
Thanks for selecting WGQH Series Liquid Starter from Worldwide Electric Co., Ltd. It is a high-tech product suitable for various load class drive motors such as production machineries, fan and water pump, integrating soft starter,energy saving and protection. It is designed by our company with many years of experiences and we are responsible for professional production and sales.
This manual provides the user with the relevant precautions for installation, setting of operating parameters, abnormality diagnosis, routine maintenance and safety operation. Please read this manual carefully before installation to ensure correct installation and operation of this product.
As regards our products and our service, all the staff of our company firmly believes the principle that the customer is God. In case of any difficulty or unsettled problem arising in operation, please contact the dealer or directly contact us.
After the arrival of the starter, check the product for its type, specification and etc. If any part of the product does not go well with the written documents or materials due to updating, consult our company. Check quality indicator, product manual, maintenance guaranteed manual and packing list. Contact the supplier if any problem.
Please keep this manual well, which will be helpful for maintenance, take-caring and other applications in the coming future. Please contact us directly in case of any question, and please browse the website of this company for more products:
Unpacking for check
WGQH series solid soft starter for cage motor has passed the strict quality inspection and performance testing before ex-factory. After purchasing, please check whether there is any damage due to careless transportation, and whether the model of the product conforms to the ordered one prior to unpacking. In case of any problem, please contact us or the supplier.
1. Check if the information attached to the equipment is complete and in line with the content of packing list of the equipment.
2. Check the nameplate on the cabinet body to confirm that the equipment is in line with the ordered equipment.
3. Check whether the spare parts and components are damaged or lost. The spare parts and components shall be governed by procurement contract.
Application environment
| Rated voltage | AC three-phase symmetric current, 6KV-12KV(+10%, -15%), 50HZ |
| Matching motor | Standard three-phase AC asynchronous case induction motor |
| Startup frequency | Frequent startup, time space is 10 minutes |
| Cooling-down method | Natural cooling-down or force wind cooling |
| Phase order | Working in the condition that input phase order is completely the same as output |
| Protection class | III class |
| Capacity of relay contact | IP20 IP30 |
| Environment | Altitude is not more than 2000 meters, no corrosive gas, no conductive dust, no severe shock (less than 0.5G), well-ventilated.
|
| Temperature | -25ºC to +40ºC |
| Storage temperature | -40ºC to +70ºC |
| Max relative humidity | 5%- 95% |
| Note: Please notice us if you have special requirements |
Safety Warnings
² Warning!
Be free from raff handling or installation, rain and far away from the electromagnetic interference.
² Warning!
Prevent the children and the public from touching or approaching to this equipment. This equipment, with dangerous voltage, controls the dangerous rotary mechanism.
² Warning!
This equipment shall be only used for the purpose specified by the manufacturer; any modification without authorization or the operation not conforming to the regulations of this manual will result in severe personal injury and other injuries.
² Warning!
Please read the installation operation and safety instructions of maintenance in this manual carefully before operating this equipment.
WGQH series high voltage solid soft starter is high voltage equipment which has a potential voltage that can harm the human body. Only the authorized and trained persons can operate and maintain this equipment. For the induction high voltage on the motor, it is dangerous after powering off. Thus the operation can be done only after discharging.
All the panels and cabinet doors have to be closed during normal operating. Take care of the interlocks of the high voltage switchgear and the soft starter because they are the important methods for safety.
There are high voltage power supply and control power supply of the soft starter. Pay attention to switching off the control power supply after powering off the high voltage power supply before the operation. When operate the charging equipment, do stand on an insulating plane to ensure that the operation men are not grounding.
The safe operation of this equipment need correct transportation, operation, installation and maintenance.
Special attention:
The application of the compensating capacitor: the reactive power compensating capacitor used for improving the power factor can be connected only to the input terminal of WGQH. Do not connect it to the output terminal to avoid the damage of the power elements of the silicon control.
The insulation test of the megohm meter: do not measure the insulation resistance between the input and output terminals of WGQH, otherwise, the silicon control and the control panel may be damaged by overvoltage. The megohm meter can measure the interphase insulation and phase-to-ground insulation of WGQH. But the input terminals shall be short circuited respectively with the output terminals by three short circuit wires and all the plugs shall be pulled out before measuring. The above principles have to be followed when measure the insulation of the motor.
Chapter 1 Introduction
1.1. General
WGQH series high voltage solid soft starter is a new type soft starter for high and medium voltage AC motor of the voltage below 12KV. It controls and protects the motor complexly by advanced control technology, electric power and electron technology and the technology of series/parallel connection of the silicon control. Compare with traditional starting methods, WGQH has the intelligent control mode, which not only can set the starting torque, starting current, starting time and stopping parameter and other parameters, but also can inter-control with the computer and PLC. It adopts original binding high quality thyristor and other import silicon control. It makes the motor start and stop smoothly by stepless controlling the output voltage to avoid the harmful impact on the electric network by starting overcurrent. Thus, large power motor can be used when the capacity of the electric network is limited and the lifespan of the motor can be prolonged. High voltage AC motor has the advantages of small volume, low consumption, high reliability and sensitivity, no contact, being free of maintenance, no pollution and convenient installation and so on.
1.2 Advantages:
1. Reducing the starting current of the motor, reducing the distribution capacity, avoiding investment in capacity increase
2. Reducing the mechanical stress in starting, prolonging the service life of motor and related equipment
3. The smooth starting and stopping avoid the surge problem and water hammer effect.
4. Variable starting modes and wide range of the current and voltage setting can apply to many kinds of load occasions and be easy to improve the technology.
5. Perfect and reliable protection function can protect the motor and other relative equipments effectively.
6. It can apply to the occasion that frequent starting and stopping are needed.
1.3 Brief introduction to typical application
1. Water pump: use the control function of pump, in starting and stopping to reduce the water hammer of pump flow due to the impact from liquid flow and saving the maintenance fee of the system;
2. Ball mill: by means of the slope starting of voltage, reduce the wearing of the gear torque, reduce the workload of maintenance and prolong the service life;
3. Blower fan: replace traditional starter with the solid soft starter and reduce the wearing of belt and the mechanical impact;
4. Compressor: realize smooth starting and reduce temperature rise of motor theough limiting the current ;
5. Crusher: avoid burning of the motor due to over-heat caused by mechanical fault and blockage via block protection and fast protection;
6. Conveying machinery: realize smooth and gradual starting process and smooth speed-reducing stopping process and avoid the damage to materials and equipment due to impact by means of soft starting and soft stopping control.
Chapter 2 Working principles
High voltage thyristor softer device is series connected between three-phase AC voltage and the input terminal of three-phase AC asynchronous/synchronous motor. It changes the effective value of three-phase input current in order to fulfill the aims of starting of constant current and the starting of some slope variety voltage. After finishing starting, three-phase bypass contactor J automatically pulls-on and the motor is brought into the service of electric network (see fig.1). In the condition without impact current, please see fig.2 for the oscillogram of the input/output voltage and the variety of the current.
Chapter 3 Technical performance and characteristics
3.1 Technical Indexes
| Specifications of product |
| standard of the product and approval | Q/XWZ13--2008 |
| range of the power | 300kW--15000kW |
| Working power | Main line power supply 3AC 6~12KV±10% 50HZ |
| Control power supply: 3AC 380V±10% 3-phase 4-line 50HZ |
| Control board power supply: AC220±10% 50HZ |
| pressure loss of the starter | below 1V when with bypass contactor |
| Trigger technology of the thyristor | CT trigger (optical or mix) |
| Rated tolerance capacity when short circuit | ≥20KA |
| Overload ability | 500%/30S 120% of controller nominal |
| Technical parameter |
| Soft start time | 0~180s can be set |
| Initial voltage | 30~80% can be set |
| Rated current | can be set |
| Kick time | 200-800ms can be set |
| Start mode | can be set(constant control,voltage slope,pulse kick) |
| Constant current coefficient | can be set(times of rated current) |
| Start limit current | 100%~600% can be set |
| Kick current | 50%~80%can be set |
| Stop mode | Free stop or soft stop |
| Soft stop time | 0~30s can be set |
| Overload protection time | 0~180s can be set |
| Control mode | Can be selected |
| Protection function |
| I²t overload protection curve | Auto inverse-time-limit protection, CPU control, protection curve can be chose |
| Running definite time overload protection | Overload capacity and protection time can be set |
| Missing phase protection | Protection of input missing phase and output missing phase |
| External fault protection | when the controlling panel is external fault, lock the triggering signal shutdown protection |
| Phase order protection | When the input phase order is not the same as output phase order, block the start signal and alarm |
| Current unbalance, over-current protection | Upper limit current, can be set |
| Start overtime protection | Exceeds soft start time, but the start is not completed, so shutdown protection |
| Starting interval protection | Start time is less than 6 per hour, and start time interval between 2 times is more than 10 minutes, the interval time can be set |
| Insulation | Ground and phase frequency is 28~32kV/1min, lighting impulse 60 KV |
| Inspection function |
| Current inspection | A,B,C 3-phase current and motor current |
| Voltage inspection | Input power supply voltage and motor working voltage |
| Input and output interface |
| Input interface | Start(2-line, 3-line), stop, fault |
| Output interface | Ready, start, running, fault |
| Communication and 4-20mA interface | RS485 interface, modbus protocol,4~20mA standard analog signal output |
| Bypass output interface | After starting, switch to bypass contactor |
| Operation interface |
| LED display | Display fault code and current |
| Keyboard | Including 6 operation buttons |
3.2. Characteristics of the equipment
This equipment adopts unit construction and module installation. It has the absorption and protection technology for multiple over-voltage; multi-step limiting clamp of the transient dv/dt lightning impact voltage and the operation wave over-voltage and other transient excess processes; it has a special methods for di/dt, open valve, the voltage-sharing in shutting-off process of the valve; it adopts high anti-interference digital trigger and CT isolating transmission trigger impulse which make this high voltage equipment as safe and reliable as the low voltage one.
l Adopting double single-chip microcomputer full-digital control;
l With the function of 5-bit LED nixie tube display, with the current display range of 0~99999A, displaying the working state of the motor in an all-round way;
l Harvard SCM has interference-resistance capability, guaranteeing the control system works reliably in the complex industrial environment with strong interference;
l With three starting modes including constant flow soft starting, voltage slope starting and pulse jumping starting, suitable for various loads, with smooth starting process and small starting current (the constant soft starting mode can control the starting current within 1~3.5 times of the rated current), the starting time can be adjusted according to the requirements of the working conditions. The constant current soft starting is suitable for the non-load starting and light load starting of motor, voltage slope starting is suitable for the heavy load starting of motor; in case that the static friction of the load machinery of the motor is relatively large, please select the pulse jumping starting mode.
l With two stopping modes including free stopping and soft stopping; the characteristics of soft stopping can satisfy the mechanical requirements on different occasions and the soft stopping time can be adjusted; the characteristics curve of soft stopping is shown in Fig. 4;
l With reliable function of over-current protection, overload protection, overheat protection, power supply open-phase protection and output open-phase protection, guaranteeing reliable and safe starting and stopping of the motor. It will protect the open-phase fault of the motor within 1 second and it has the function of current amplitude limiting protection. When the motor is overloaded, it has the function of I2t protection, with the performance superior over the protection of thermal relay. In addition, the monitor will display the corresponding fault codes.
l With spanning operation (through contactor bypass) mode;
l With DCS remote interface and computer RS485 interface;
l 4~20mA standard simulation current output;
l With compact and original product structure and small volume, easy for installation, use and maintenance
3.3 Characteristics of the performance
1. Flexible control
l Field button start: Use two-wire or three wire control mode, two-wire accept passive relay contacts open and close signal, three-wire accept passive button signal
l Keyboard keys start
l PC remote start
l Combination start: keyboard + remote control, keyboard + PC, remote control + PC
2. Many kinds of starting
The control modes of the soft starter: current limiting start and voltage slope start. Besides, the starter has crawl operating function settable and selectable by the user according to the load and other specific requirements.
(1) the current limiting soft starting:
When the motor starts, its output voltage value increases rapidly until the output current reaches the setting limiting value Im as it is shown in fig. 1-1. The voltage increases gradually, which makes the motor accelerate gradually. When the speed of the motor is close to the rated value, the output current reduces to the rated current Ie rapidly and the starting is finished. The current limiting value can be set according to the load condition and the setting range is 1 to 4 times of the rated current of the motor.
(2)the voltage slope starting
Please see fig.1-2 for the oscillogram of the voltage variation of the voltage slope starting. U1 is the initial voltage value output by the soft starter. When the motor starts, the output voltage of the soft starter increases to U1 rapidly and increase gradually according to the setting time t, the motor speed increased by the increase of voltage, when voltage reaches the rated value Ue, the motor reaches to the rated speed, the starting is finished. The starting voltage U1 and the starting time t can be set according to the load. The setting range of U1 is 30%-80% UeV and the setting range of t is 0-180 s.
(3)stop
Free stop and soft stop modes settable by the user according to the load and working conditions
Free stop: Upon receiving the stop command, solid soft starter will switch off the bypass contactor immediately blocks the output of the thyristor of the main circuit to stop the motor along with the inertia.
Soft stop: In this stop mode, the power supply of the motor load switches from bypass contactor to the thrysitor of the main circuit and the output voltage of the softer reduces gradually until the motor stops operating. The stop time can be set according to the load requirement and the setting range is 0-30S.
3.The protection function
l Missing phase protection: When missing phase, block the pulse to prevent the motor winding burn out caused by power supply missing phase.
l External protection: When the control panel is fault, cut off the power supply
l Start overtime protection: If the start time of voltage slope start, constant current start, pulse kick start exceeds the setting "start time", block the pulse, shut down the soft starter, carry on overtime protection. Then, re-set the initial voltage and start time.
l Over-current protection: When starting, motor current exceeds the limit value, then cut off the power within 1 s
l Running current overload protection: When running, motor current overload exceeds setting time, then cut off motor power
l Running current inverse time overload protection: I ² t overload protection
l Phase sequence protection: When input phase sequence is not the same as output phase sequence, block the start signal, send signal to protect
l Start interval protection: start times is less than 6 per hour, and time interval between 2 times is more than 10 minutes, or block start signal to protect.
4. Widely used in many occasions:
l Normal start: Such as, the load of the bow propeller, compressor, lifter, centrifugal pump, conveyer belting and elevator and others can selects the type according to the rated power of the motor. The starting voltage of the motor can be adjusted between 40% and 50%.
l Heavy load start: Such as, select the type as 120% of the rated power of the centrifugal machine, crusher, mixing machine, grinding mill and agitator and others. The starting voltage of the motor can be adjusted between 50% and 60%.
Chapter 4 Type Selection
4.1. Type description:
4.2 The structure and dimension (Please contact us if you have special requirements)
| The softer starter | The rated voltage | The rated current | The matching power of the motor | Overall dimension (mm) |
| type | (KV) | (A) | (KW) | height | width | depth |
| WGQH-6/710 | 6-6.9 | 85 | 710 | 2300 | 1000 | 1500 |
| WGQH-6/1250 | 160 | 1250 | 2300 | 1000 | 1500 |
| WGQH-6/1500 | 200 | 1500 | 2300 | 1260 | 1500 |
| WGQH-6/2400 | 300 | 2400 | 2300 | 1260 | 1500 |
| WGQH-6/3200 | 400 | 3200 | 2300 | 1500 | 1500 |
| WGQH-6/4000 | 500 | 4000 | 2300 | 1500 | 1500 |
| WGQH-10/1100 | 12 | 85 | 1100 | 2300 | 1260 | 1500 |
| WGQH-10/2230 | 160 | 2230 | 2300 | 1260 | 1500 |
| WGQH-10/2500 | 200 | 2500 | 2300 | 1500 | 1500 |
| WGQH-10/4000 | 300 | 4000 | 2300 | 1500 | 1500 |
Chapter 5 Installation and debugging
Warning: WGQH series high voltage solid soft starter is high voltage equipment which has a potential voltage that can harm the human body. Only the authorized and trained persons can operate and maintain this equipment. For the induction high voltage on the motor, it is dangerous after powering off. Thus the operation can be done only after discharging.
5.1. Primary check
Generally, WGQH series high voltage soft starter is upright during transportation.
Unpack the equipment carefully and check if it is damaged during transportation. Write damage report and inform us within 15 days after receiving the bill of loading.
Check if there are loose mechanical parts, circuit break and loose wiring phenomenon during transportation and carriage. Please inform us if there are above phenomenon.
5.2. Installation and wiring
WGQH series soft starter is series connected between the high voltage switchgear and the high voltage motor. Please cut off all the power supply before installation. The installation of the specifications of high voltage electric shall be followed during installation. Ensure the safety distance and horizontal installation. A certain space has to be kept around the cabinet to ensure the free opening and closing of the cabinet door and for the convenience of the operation and maintenance.
The grounding cables shall be connected to the ground terminals at the bottom of the cabinet. Inspect all the resistance among the ground lines by ohm meter to ensure reliable grounding. The wiring of the power cord of the soft starter is bottom inlet and bottom outlet.
The output power cord of the high voltage switchgear is connected to the output interfaces R, S and T of the vacuum contactor though the inlet holes of the cabinet via the high voltage cables. The outlet of the cabinet is connected to the high voltage motor through the outlet holes of the cabinet via the high voltage cables by U, V and W interfaces. The interfaces shall be protected by insulating bushing. If there is zero sequence mutual-inductor, the inlet cable shall go through it.
For the control power supply of the soft starter, select 1.5mm2 four-cord cable for AV 380V, which shall be connected to connecting terminals through the inlet holes for the control power supply of the soft starter.
Inspect if the connecting line for the power supply and for the load are in good connections. Make sure that the input phase-sequence is exactly the same as that of the output.
5.3. The tests of the dielectric strength and of the protection functions
1 The test of the power-frequency tolerance voltage
The test of the dielectric strength can be done if the condition at the user side is allowable:
a. the primary to the second grounding
Short circuit all the input and output terminals of the primary loop. Short circuit the two terminals of the
thyristor. Short circuit the terminals of all the secondary loops and then connect them to the shell and the earth. Add power frequency AC 35KV 1min between the terminals of the primary and secondary loops and the earth. There shall be no breakdown or flashover.
b. between the primary loop
Shot circuit respectively the three-phase input and output terminals A, B and C of the primary loop, including the two terminals of the thyristor. Add power frequency AC 35KV 1min among any of one phase, the other two phase of the A, B and C phase of the primary loop and the earth. There shall be no breakdown or flashover.
c. the secondary loop to the shell
Short circuit all the terminals of the secondary loop. Cut off the line connected to the shell and the earth line. Add power frequency AC 2.0 KV 1min between the terminals of the secondary loop and the shell. There shall be no breakdown or flashover.
2. The test of the protection function
The aim of the test is to check if the inspection and protection units of the soft starter can work coordinately and reliably. Because some faults have to be simulated, suggest to testing in the system of the voltage 380V or below for the safety of the equipment.
a. the test of no-voltage protection function
Press the start button of the soft starter and then short circuit 380V power supply. The soft starter shall alarm and display "no-voltage". The control system will reset.
b. the test of the over-current protection of the soft starter
Set "the upper limiting value of the current" of the soft starter. Start the motor with light load and then increase the load of the motor to the upper limiting value of the current. The soft starter will trip and alarm with "over-current" displayed.
c. the test of the operating over-current protection
Set "the upper limiting value of the operating current" of the soft starter. Start the motor with light load until bypass operation and add the load of the motor to he upper limiting value of the current. The soft starter will trip and alarm with "over-current" displayed.
d. the test of the protection function of starting overtime
Modify the "starting time" value of the soft starter to the value more than the actual starting time of the motor. The soft starter will trip and alarm with "over-time" displayed if the protective time of starting is up.
e. the test of start phase sequence protection
Change the input terminal of starter and the wiring terminal of motor, to make they are different, when press start button it trip immediately, display "phase sequence is error"
f. the test of external fault protection
Make fault relay operate, the starter will alarm, display "external fault"
g. the test of starting time interval protection
Start immediately when the first start is completed, the starter will block the start signal, and display the start time interval.
5.4. Low voltage simulation (only for the technicians for installation and debugging from our company)
Low voltage (380V) simulation function has been designed for WGQH soft starter. Select one low voltage (380V) motor of the power about 10KW before connecting the high voltage power supply and the high voltage motor. Connect respectively as the requirements of the inlet/outlet of the soft starter. Open the small door of the soft starter, and then open P4, P5, and P6 of the main panel. The rotary switch of the cabinet door shall be in test status and the ready indicating light will be off. The soft starter will be in low voltage working status. Operate it as the operation process and it shall work normally. If not, find the reason and solve it.
If the low voltage (380V) simulation debugging function is normal, short circuit P4, P5, P6 of the main panel and make the rotary switch turn from test position to high voltage working position.
Special attention: add high voltage electricity in low voltage working status will damage the equipment.
5.5 High voltage debugging
If the low voltage (380V) simulation debugging function is normal, connect high voltage cables according to the requirements of installation wiring in 2 and 3 after returning to high voltage working status. Please check the followings before powering on:
l Check if all the conductor lines are wiring correctly and in good conditions.
l Check if the grounding of the system is good.
l Check if any of the mechanical parts and wiring is loose. Check if there are metal powder, screws and sundries inside the cabinet.
l Check if the wiring of the motor and the insulating are good.
l Close the front and back doors to check if high-voltage interlocking mechanisms are working normally.
l Check if all the parameters are correct. Modify them if necessary.
In high voltage working condition, operate it as the operation specifications of the soft starter and the starter shall work normally.
Chapter 6 Operation
6.1. Operation panel
Meanings of unit indicator light:
A-if this light is on in starting or running of the motor, it refers to current unit A (ampere),in setting parameter; If this light is on, it refers to viewing this parameter value; In case of fault, it will be off;
P - this light will be on after the motor starts and switches over to the bypass, in setting the parameter; If this light is on, it refers to parameter editing state; In case of fault, it will be off.
The key functions are described in the following table:
| Key ID | Key name | Functional description |
| RUN | Starting key | In Ready state of starting, press this key and it can start the motor |
| STOP | Stopping key | 1.In inputting password, it can exit directly; in viewing the parameter state, press this key and it can exit the parameter setting state and return to the powering-on initial state.
2.In operation of motor, press this key for stopping. |
| SHIFT | Shifting key | 1.Press it together with PRG key, it will enter the password input state;
2.In the password input state, press this key to enter (no flash of the corresponding position) or exit the modification state (flash of the corresponding position);
3.After inputting the password, press this key for two seconds, if the password is correct, it will display "PASS",otherwise, it will return back to the powering-on initial state; in the following two seconds, in case of no press on the key, it will automatically enter the parameter setting state; if press this key within 2 minutes, it will enter the password modification state; the modification method is same to the one in inputting password; after modification, press PRG for storage, it will display "Good", after 2 seconds, it will automatically enter parameter setting state; in case of not saving the modified password, press this key for two seconds to enter the parameter setting state.
4.In setting the parameter, press this key to modify the data or exit the modification state; |
| PRG | Programming key | 1.Press it together with Key SHIFT to enter the password input state;
2.In modify the password, press this key to store the modified password;
3.In setting parameter, press this key to store the parameter value. |
| Increasing key | 1.Move the flash position towards left in inputting the password or increase its value;
2.In viewing the parameters, press this key to view its function code and its parameter value
3.In modifying the parameter, press this key to increase its value; |
| Reducing key | 1.Move the flash position towards right in inputting the password or increase its value;
2.In viewing the parameters, press this key to view its function code and its parameter value
3.In modifying the parameter, press this key to reduce its value; |
Flow chart of parameter setting
6.2,Method of setting password and parameters
In order to guarantee the parameter of the soft starter will not be illegally modified, it is necessary to set the parameters only when the password is validated. The password input method is shown as follows (an example with 0200 as the existing password):
After entering the password input state, press "STOP" for direct exit in case of not modifying the parameters.
Password modification method is shown as follows (an example of modifying the former password 0200 into 0205):
When the soft starter is firstly used to control the operation of a motor, it is necessary to set the parameters according to the related parameters of the motor and the load of the motor, otherwise, the starter will control the starting motor according to the present value, which may result in the failure of the starting or abnormal operation.
The parameter setting steps are shown as follows: an example of setting soft starting mode (9P=1) and soft stopping (AP=20) to 20 seconds:
Note: in "Good" state, press Key "" and "" at the same time to reset all the parameters to ex-factory value.
6.3,Parameter function
1 Table of parameter function
| Function | Setting range | Ex-factory value | Description |
| Code | Name |
| 0P | CT variety scale | 1, 2 | 1 | 1 :1000/0.5A 2 :2000/0.5A |
| 1P | Starting mode | 0, 1, 2 | 1 | 0: constant current 1: voltage ramp 2: impulse step |
| 2P | Starting voltage | 30~80(%) | 30 | Valid voltage ramp mode |
| 3P | Starting time | 0~180(S) | 30 | Valid of all starting modes |
| 4P | Constant current | 100~400(%) | 200 | Valid constant current mode |
| 5P | Rated current | 0~1060 | 57 | Rated current of the motor (Unit: A) |
| 6P | Starting amplitude limiting current | 100~600(%) | 400 | Valid voltage ramp mode |
| 7P | Step voltage | 50~80(%) | 70 | Valid impulse step mode |
| 8P | Step duration | 200~800(ms) | 400 | Valid impulse step mode |
| 9P | Stopping mode | 0, 1 | 0 | 0: free stopping 1: soft stopping |
| AP | Soft stopping time | 0~30(S) | 30 | Valid soft stopping mode |
| bP | I2t overload protection curve | 0, 1, 2, 3, 4 | 1 | 0: output inverse time lag protection
1,2,3,4:four curves of inverse time lag protection, the starting current value of inverse time lag protection is max{1.14Ie,(1+EPparameter)*Ie} |
| CP | Control mode | 0~5 | 0 | 0:keyboard control 1: remote control
2: controlled by PC computer 3: keyboard+remote control 4: keyboard+PC 5: remote control+PC |
| dP | Specified time overload protection time | 0~180(S) | 10 | Valid, when the running current is equal or more than (1+EP parameter) ×Ie |
| EP | Overload quantity of specified time overload protection | 0~400(%) | 20 | The protective current value is equal to (1+EP parameter) ×Ie |
| FP | Local address | 1~255 | 1 | Used for serial-port communication |
| gp | Test function of minitype motor | 0, 1, 2 | 0 | 0: function invalid 1: function valid
2:the main loop no-load test with no power transmission |
| hp | Rated current of minitype motor | 1-100 | 15 | When the test function of minitype motor is valid, set to the rated current of minitype motor for testing (unit: A) |
| HP | Connection mode of the starter | 0, 1 | 1 | 0: connect the starter by triangle wiring mode
1: connect the starter by ordinary wiring mode |
| LP | Current display error correction
| -999~999 | 0 | Shows I= measured I + LP, can set it in the menu in ready state, can also adjust it when the bypass is running. |
Note:
l In the mode of constant current starting: skip parameters 7P and 8P, don't display;
l In the mode of voltage ramp starting: skip parameters 4P, 7P and 8P, don't display;
l In the starting mode of impulse step: skip the parameter 4P, don't display;
l In the mode of free stopping: skip AP, don't display;
l When the test function of mini type motor is invalid, skip hp parameter without display;
l When the HP is set to 0, skip 9P and AP parameter without display;
When CP is set as 1, the remote control can adopt two-wire or three-wire system, and can only adopt three-wire system if CP is set as 3 or 5.
6.4,Description of function parameters:
1 CT variety scale (function code OP)
Choose the parameters basing on the real variety scale of the inner set current transformer. The parameters have been set by us before ex-factory, so it is not necessary for you to adjust.
2 Starting mode (function code 1P)
According to the different operating conditions on site, three kinds of starting modes will be offered: set 1P as (0,1,2).
0 means constant current soft start, applicable to no-load starting, light-load starting of the motor, low capacity of the electric network or the occasion that the starting current is strictly limited. The current will be kept at the set point of 4P from starting to the end of starting if this mode selected; (the starting characteristic curve is as Fig. 1)
1 means voltage ramp starting, applicable to the starting of the motor with short time start and without strictly limitation of the starting current, supplying terminal voltage for motors in voltage ramp mode, initial voltage of the ramp will be set by 2P and the slope of voltage ramp will be adjusted by 3P; (the starting characteristic curve is as Fig. 2), normally adopt this method.
2 means impulse step starting, applicable to the operating condition of load machinery for motor with relatively bigger static friction, it is also started in voltage ramp mode and the different point is that a high voltage with ultra-short duration will be added to the motor at the beginning of starting. (The starting characteristic curve is as Fig. 3)
3 Starting voltage (function code 2P)
Valid when 1P is selected as 1 or 2, indicating the initial voltage value of voltage ramp, setting according to the voltage percentage within the range of 30-80%. As the higher the starting voltage the larger the value is; the larger the initial torque of the motor, the larger starting current of the motor is, please set carefully, normally set as 40% (add this value appropriately in case of heavy load to guarantee the starting torque is more than static torque of the mechanism) and adjust with 3P and 6P to allow the motor to complete the starting smoothly while the starting current not exceeding 6P set point and within the 3P setting time range.
4 Starting time (function code 3P)
Set as 0~180S according to the load status of the motor; if the time is set relatively longer, the starting current change slowly and the actual starting time of the motor will be prolonged correspondingly, so the time is normally set as 30s, which will be increased properly in present of overtime protecting.
5 Constant current (function code 4P)
This parameter shall be valid only when 1P is set as 0, and the set value is the percentage of the rated current of the motor (100~400%) ; When the motor is started, the soft starter will control the starting current of the motor and shall reach and keep this parameter setting value to the end of starting. If the parameter setting is small, the starting torque of the motor will be smaller and the starting time will be longer.
6 Rated current (function code 5P)
The parameter refers to the rated current of the motor and input the parameter value according to nameplate of the motor. (Unit: A)
The setting range is 0-1060. Take A to present 10 when the rated current of the motor reaches 1000A or above. For example, "5PA60" presents that the rated current is set to 1060A. If the starter is triangle mode wiring, it will transfer the current automatically to make the current value displayed corresponding to the wire current of the power supply.
7 Starting amplitude limiting current (function code 6P)
Set the parameter according to the percentage of rated current of the motor within the range100~600%, and normally set as 300~500% of the rated current of the motor on the basis of the load of the motor. Cut off the power supply of the motor when the starting current of the motor exceeds the set value, and the relevant fault code will be shown on the monitor.
8 Step voltage (function code 7P)
This parameter shall be valid only when 1P is set as 2. It means that add an unexpected high-voltage amplitude of ultra-short duration to the motor at the time of starting, and it can be set to 50~80% of the supply voltage.
9 Step duration (function code 8P)
When the motor is in the starting mode of impulse step, the duration of unexpected high-voltage added to the motor at the beginning of starting shall be set as 200~800ms.
