OM226142 rev C
42
6.6 REMOTE
EPO
The voltage supply to the loads can be interrupted from a remote location by using the
remote EPO option (i.e. for safety requirements). A normally closed contact must be
connected to the UPS terminal board; when this contact is open the inverter and by-pass
static switches are disabled so that the output supply is interrupted.
6.7 FANS
MONITORING
For special applications it is possible to require the fans monitoring.
An additional monitoring card provides to activate the alarm (A20) on the LCD display in
case of any fans failure.
6.8
DIESEL GENERATOR INTERFACE
The diesel generator interface provides to limit the rectifier output voltage in order not to
recharge the battery during the Gen Set operation. In this way the rectifier needs a lower
current to feed the DC loads (inverter) and a considerable amount of energy is saved,
therefore the rating of the generator power can be lower.
A volt-free contact indicating the Gen Set operation must be provided and connected to
two additional terminals on the UPS terminal board.
Picture 33 – Diesel generator interface block diagram
