HGM93XX MPU(CAN) SERIES GENSET CONTROLLER
HGM93XX MPU(CAN) Series Genset Controller Version: 1.1 2016-11-03 Page 25 of 77
5.6 SWITCH CONTROL PROCEDURES
5.6.1 HGM9320MPU(CAN) SWITCH CONTROL PROCEDURES
Manual transfer procedures
When controller is in
Manual
mode, the switch control procedures will start through manual
transfer process.
Users can control the loading transfer of ATS via pressing button to switch on or off.
A. If “Open breaker detect” is “SELECT Disable”
Press generator switch on or off key
, if generator has taken load, will send unload signal;
if taken no load, generator will send load signal; if mains has taken load, will send unload
signal, and then generator will take load after the mains “open delay”.
Press mains switch on or off key
, if mains has taken load, will send unload signal; if
taken no load, mains will send load signal; if generator has taken load, will send unload
signal, and then mains will take load after the generator “open delay”.
If “Open breaker detect” is “SELECT Enable”
To transfer load from mains to generator need to press mains switch off key
firstly.
After open delay, press generator switch on key
, and generator will take load (there is
no action when pressing switch on key directly).
The way to transfer from generator to mains is as same as above.
Auto transfer procedures:
When controller is in AUTO mode, switch control procedures will start through automatic
transfer.
1) If input port is configured as Close Mains Auxiliary
A. If “Open breaker detect” is “SELECT Enable”
When transferring load from mains to generator, controller begins detecting “fail to
transfer”, then the open delay and transfer rest delay will begin. When detecting time out,
if switch open failed, the generator will not switch on, otherwise, generator switch on.
Detecting transfer failure while generator switch on. When detecting time out, if switch on
fail, it is need to wait for generator to switch on. If transfer failed and warning “SELECT
Enable”, there is alarming signal whatever switch on or off failure.
The way to transfer from generator load to mains load is as same as above.
B. If “Open breaker detect” is “SELECT Disable”
