American Power Conversion 240-320kW - page 33

External Connection
990-4049
Installation Guide APC Silcon 240-320kW 480V UPS 33
4.4.2 Cable Sizes
Cable sizes 24 AWG - 12 AWG are suitable. Use copper conductors only. Cable sizes depend on
current demand and ambient temperature.
NOTICE!
Alarm Trigging Events 1-2-3-9-10-11-13 activates the corresponding alarm relay after the delay.
Alarm Trigging Events 4-5-6-7-8-12-14-15 activates the corresponding alarm relay momentarily.
Common fault relay 16 is activated at the same time as relay 1-2-3-4-5-6-7-12-13-14-15, or in
any of the below situations:
• Internal power supply fault
• System locked in operation mode
• Internal memory fault
• Internal communication fault