APC SILCON 990-4053 - Manual (Page 17)

External Connection
990-4053
Installation Guide APC Silcon 480kW 400V UPS 17
4.4.1 Relay Board/Relay Functions
NOTICE
If alarm mode “Communication to controller lost” is active, ALL relays will indicate failure
Relay
Number
Message Alarm-trigging Events
1 ## (X002) Mains outside limits Mains voltage RMS outside limits
Mains wave form (fast detector) outside limits
Mains frequency outside limits
2 ## (X003) Bypass outside limits Bypass voltage RMS outside limits
Bypass wave form (fast detector) outside limits
Bypass frequency outside limits
3 ## (X004) Output outside limits Output voltage RMS value outside limits
Output wave form (fast detector) outside limits
Output frequency outside limits
4 (X005) System overload Output load exceeding 100%
Delta inverter current limiter active
Main inverter current limiter active
5 (X006) Fan fault Blocked or faulty fan
6 (X007) High Equipment
Temperature or
Inverter Fuse Blown
Static switch temperature too high
Main inverter failure (temperature too high or fuse blown)
Delta inverter temperature too high
Magnetic temperature too high
Isolation transformer (option) temperature too high
Battery temperature too high
7 (X008) MCCB battery off Battery MCCB/Fuse not closed or released
8 (X009) Normal operation UPS running in normal operation mode(status)
9 ## (X010) Battery operation UPS running in battery operation mode(status)
10 ## (X011) Bypass operation UPS running in bypass operation mode(status)
11 ## (X012) Stand-by operation UPS in stand-by mode
(Hot stand-by - parallel systems only)
12 (X013) Service bypass
operation
Service bypass switch active
13 ## (X014) Boost charge
operation
UPS boost-charging on battery
14 (X015) Battery voltage
outside limits
DC voltage too high (shut down)
DC voltage below warning level
DC voltage too low (shut down)
15 (X016) Battery condition
fault
ABM has detected weak battery condition
ABM has detected defect battery
(ABM = Advanced Battery Monitor)
16 ## (X017) Common fault All alarms as mentioned above
(except relays 8+9+10+11)
Internal power supply fault
System locked in operation mode
Internal memory fault
Internal communication fault