Famco MONT72 Series, Руководство пользователя

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Chapter 1 Safety Information and Precautions Shenzhen Hpmont Technology Co., Ltd.
- 2 - MONT72 Series User Manual V1.0
Warning for ground mass leakage current
The device generates mass leakage current, so users need to confirm the reliable grounding before
connect to the power supply. The grounding should comply with the local relative IEC standard.
1.3 About MONT72 Controller
No capacitor or varistor on the output side
Since MONT72 output is PWM wave, it is strictly forbidden to connect capacitor for improving the
power factor or varistor for lightning protection to the output terminals so as to avoid MONT72 fault
trip or component damage.
Contactors and circuit breakers connected to the output of MONT72
If circuit breaker or contactor needs to be connected between MONT72 and the motor, be sure to
operate these circuit breakers or contactor when MONT72 has no output, so as to avoid any damage to
MONT72.
Running voltage
MONT72 is prohibited to be used beyond the specified range of running voltage. If needed, please use
the suitable voltage regulation device to change the voltage.
Capacitor energy storage
When the AC power supply is cut off, capacitor of MONT72 sustains deadly power for a while. So to
disassemble MONT72 that is powered, please cut off the AC power supply for more than 10 minutes,
confirm the internal charge indicator is off and the voltage between (+) and (-) of the main circuit
terminals is below 36V.
Generally, the internal circuit enables the capacitor to discharge. However, the discharging may fail in
some exceptions. In these cases, users need to consult Hpmont or our regional distributor.
Change three-phase input to single-phase input
For three-phase input controller, users should not change it to be single-phase input.
To use single-phase power supply, disable the input phase-loss protection function. And the
bus-voltage and current ripple will increase, which not only influences the life of electrolytic capacitor
but also deteriorates the performance of the controller. In that case, the controller must be derating
and should be 60% within rated value of controller.
Lightning surge protection
MONT72 internal design has lightning surge over-current protection circuit, and has certain
self-protection capacity against the lightning.