Perfect Harmony SNG5100 Series High-Voltage Variable Frequency Speed Regulation System
SN6100 Internal Feedback Chopper Wave Speed Regulating Device
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Inner feedback chop wave and speed regulation system diagram and installation diagram:
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Elementary Diagram of SN6100 Series Internal Feedback Chopped Wave Speed Regulating Device:
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Elementary Diagram on External Connecting of SN6100 Series:
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Functions of SN6100 series external connecting terminals:
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| Serial No. |
No. of terminals |
Functions of terminals |
| 1 |
K,L,M, |
Input terminal of rotor current of motor |
| 2 |
R,S,T |
Feed output terminal to feedback winding of motor |
| 3 |
A1,B1,C1,N
A2,B2,C2,N |
Control power supply input, from low-voltage distribution board, three-phase and four-wire 380/220V; when the reliability of single power supply is poor, input shall be achieved by the second circuit. |
| 4 |
101 |
Positive wire of high-voltage breaking control power supply |
| 5 |
103 |
Control wire of ON of high-voltage breaking |
| 6 |
105 |
Chain wire of on-site ON of high-voltage breaking |
| 7 |
133 |
Wire of OFF of high-voltage breaking |
| 8 |
50,54 |
Signal wire of oil high-voltage breaking position |
| 9 |
45,40 |
Well-prepared signal of speed regulating device: passive contact signals connecting to DCS, when the speed regulating device is well prepared, the contact shall be closed and at that time the remote operation is allowed (capacity of 45-58 contacts is 250V/2Aac). |
| 10 |
46 |
Signal of full speed operation of speed regulating device: passive contact signals connecting to DCS, when the speed regulating device is in full speed operation, the contact shall be closed. |
| 11 |
47 |
Signal of speed regaling operation of speed regulating device: passive contact signals connecting to DCS, when the speed regulating device is in speed regulating operation, the contact shall be closed. |
| 12 |
48 |
Signal of failure of speed regulating device: passive contact signals connecting to DCS, when the speed regulating device is in failure, the contact shall be closed. |
| 13 |
63 |
Switching on of breaker by remote operation: passive contact signals from DCS, when the contact is closed, the high-voltage breaker will be switched on. |
| 14 |
64 |
Switching off of breaker by remote operation: passive contact signals from DCS, when the contact is closed, the high-voltage breaker will be switched off. |
| 15 |
65 |
Switching to speed regulating by remote operation: passive contact signals from DCS, when the contact is closed, the device will be switched to speed regulating operation. |
| 16 |
66,50 |
Switching to full speed by remote operation: passive contact signals from DCS, when the contact is closed, the device will be switched to full speed operation. |
| 17 |
430,461 |
To analogue quantity signal of remote rotating speed 4-20mA |
| 18 |
423,424 |
Rotating speed regulating of motor by remote operation 4-20mA |
| 19 |
RS485 |
Wires for communication interface |
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Installation Drawing of Outside Measurement of Internal Feedback Speed Regulating Device:
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Specification of cabinet and installation conditions:
1. All speed regulating devices adopt the mode of forced air cooling, and the device shall be reserved with an air discharge space of 1-2m on the top. When the speed regulating device is in operation, the reacting devices will generate a certain magnetic noise, so users are suggested to install the speed regulating device at the place with a certain distance away from the place where there are people attended so as to make those people work without noises.
2. Please see the Table of Motor Power Data and Exterior Size of Speed Regulating Device (for reference) for the specific exterior size.
3. The exterior size of the speed regulating device can also be designed based on the requirements of customers, which will be considered especially for the fixed installation space of infrastructure reconstruction projects.
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Table of Motor Power Data and Exterior Size of Speed Regulating Device (reference only)
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| No. |
Type of speed regulating device |
Applicable motor capacity KW |
Applicable motor rotor voltage (V) |
Applicable motor rotor current (Am) |
| Chopped wave cabinet and inverting cabinet |
| Exterior size (mm) B×C |
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| Soft-started cabinet |
| Exterior size (mm) A×C |
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| 1 |
SN6100-250 |
220-250 |
350-400 |
400-450 |
1800×1000×2200 |
600×1000×2200 |
| 2 |
SN6100-280 |
280 |
500-560 |
400-450 |
1800×1000×2200 |
600×1000×2200 |
| 3 |
SN6100-315 |
315 |
400-460 |
440-460 |
1800×1000×2200 |
600×1000×2200 |
| 4 |
SN6100-400 |
400 |
480-530 |
500-560 |
1800×1000×2200 |
600×1000×2200 |
| 5 |
SN6100-500 |
500 |
600-650 |
480-530 |
1800×1000×2200 |
600×1000×2200 |
| 6 |
SN6100-630 |
630 |
700-760 |
500-560 |
1800×1000×2200 |
900×1000×2200 |
| 7 |
SN6100-800 |
800 |
840-900 |
530-590 |
1800×1000×2200 |
900×1000×2200 |
| 8 |
SN6100-1000 |
1000 |
1000-1100 |
550-600 |
1800×1000×2200 |
900×1000×2200 |
| 9 |
SN6100-1250 |
1250 |
1450-1500 |
500-550 |
1800×1000×2200 |
900×1000×2200 |
| 10 |
SN6100-1400 |
1400 |
1070-1130 |
760-820 |
2000×1000×2200 |
1200×1000×2200 |
| 11 |
SN6100-1600 |
1600 |
1200-1250 |
800-850 |
2000×1000×2200 |
1200×1000×2200 |
| 12 |
SN6100-1800 |
1800 |
1060-1120 |
980-1140 |
2000×1000×2200 |
1200×1000×2200 |
| 13 |
SN6100-2000 |
2000 |
1450-1500 |
800-850 |
2000×1000×2200 |
1200×1000×2200 |
| 14 |
SN6100-2500 |
2500 |
1050-1100 |
1440-1460 |
2700×1000×2200 |
1400×1000×2200 |
| 15 |
SN6100-2800 |
2800 |
1200-1260 |
1350-1400 |
2700×1000×2200 |
1400×1000×2200 |
| 16 |
SN6100-3150 |
3150 |
1320-1360 |
1400-1460 |
2700×1000×2200 |
1400×1000×2200 |
| 17 |
SN6100-3550 |
3550 |
1450-1500 |
1450-1500 |
3600×1000×2200 |
1400×1000×2200 |
| 18 |
SN6100-4000 |
4000 |
1600-1650 |
1480-1530 |
3600×1000×2200 |
1400×1000×2200 |
| 19 |
SN6100-4500 |
4500 |
1900-1950 |
1400-1450 |
3600×1000×2200 |
1400×1000×2200 |
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Cabling Diagram of Speed Regulating Device and Motor:
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Selection of cable:
1. The sectional area of cable connecting the motor rotor with the KLM terminal of the cabinet of speed regulating device as well as the sectional area of cable connecting the motor feedback winding with the RST terminal of speed regulating cabinet shall be selected based on the actual current of the motor. (Calculated based on the current density δ=2Am/ mm2.)
2. The operating power supply from the low-voltage distribution board shall select cable of VV4×2.5, and select one-circuit or two-circuit as the two-circuit power supply for switching operation according to the requirements on reliability.
3. The control cable connecting speed regulating device with high-voltage open circuit shall select one cable of KVV14×1.5.
4. The cable connecting speed regulating device with DCS shall select one cable of KVVPR14×0.75.
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