Feature of PMAC811
- Integrated motor protection, control, measurement, metering, management, and communication among PMAC811 series intelligent motor protection controller
- Widely used in petroleum, chemical, electricity, metallurgy, steel, paper, textile, cement, municipal industrial etc
- Suitable for low voltage motor applications with AC380 / 690V rated voltage, 50 / 60Hz
- Replace discrete components in the motor control center (MCC), greatly simplify the motor control loop, improve reliability and stability, and reduce the comprehensive cost
- Adopt modular structure design with small size, compact structure, strong versatility, easy installation and operation
- Record 256 Events, and accurately trace back to the failure reason
- The AC contactor can be blocked when has an extremely large short-circuit current, achieving complete protection of the MCC circuit by driving the circuit breaker by the product’s internal relay
- With a strong and reliable RS485 communication interface, can undertake AC380V strong electricity without damage
Main function
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Measurement |
Three phase current, ground current, three phase current imbalance rate, average current, positive sequence current, negative sequence current, three phase line voltage, frequency, power factor, active power, reactive power, active energy, positive sequence voltage, negative sequence voltage, three phase voltage unbalance rate, three phase current harmonics, three phase voltage harmonics etc. |
|
Protection |
Starting overtime, starting overcurrent, overload, tE time, stall, phase failure, imbalance, quick-break, grounding, underload/power, external failure, under/overvoltage, Phase sequence, TV disconnection, negative sequence protection etc. |
|
Maintenance |
Record 256 recent event information (32 events of each type, total 8 types), record event type, occurrence time, characteristic quantity; cumulative total running/stop time of motor, current running/stop time, total stop and trip times, maximum starting time/current etc. |
|
Control |
Communication control, dangling power control, restart controlled by time-shared or in batch |
|
Communication |
2 channel RS485 interfaces, Modbus-RTU communication protocol. Support to expand Profibus-DP communication, DI/DO quantity, AI, temperature detection etc. |
Specification of PMAC811
| Working Power | AC85-265V, DC100-300V | Power / Electricity accuracy | ±1% | |
| Power Consumption | <8W | Working Temperature | -20-60℃, 10-90% Non-condensing | |
| Current | Measurement Accuracy | 50%-200%Ie, ±0.5% | Storage Temperature | -40-80℃, 10-90% Non-condensing |
| Voltage | 50%-150%Ue, ±0.5% | Implementation Standards | GB 14048.4-2010, GB/T 14598.303-2011 | |
