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Operation 67
3.1.13 Alarm and Status Messages
Module Status Messages
The module status messages indicate how many UPS modules are included in the system and the present status
of each module.
The following status messages may appear in the module status area.
1. MOD N. A module status message line is displayed for each UPS module in the system. Up to six (6)
modules may be included in a multi-module system. The N in the message will indicate a specific UPS
module number, 1 through 6.
2. ON LINE. The UPS module output circuit breaker is closed and power from the module is available to the
SCC. The module output is sharing the critical load if the UPS Output Breaker is closed.
3. OFF-LINE. The UPS module output circuit breaker is open. More specific alarm messages are displayed at
the UPS module.
4. SUM ALM. The Module Summary Alarm has been activated by one of the alarm messages listed in two
tables
—SCC and Module Remote Monitor Indications and Other Alarms That Activate Summary
Alarms
—in 3.1.5 - System Configuration Screens. The specific alarm message is displayed at the UPS
module.
5. COM FAIL. The UPS module is not communicating with the SCC. This could mean loss of power to the
UPS module controls, a disconnected cable, or a control logic failure (detected by watchdog timer. Call
Liebert Global Services if you require assistance. To resume communication after control power is restored,
sequence display to Master Menu.
Figure 46 SCC Status and Alarm Message Areas
UPSRATINGS
LOAD
Byp NotAvail
Static Sw Unable
Module Sum Alm
UPSINPUTPWR
BYPASS INPUT
A-B B-C C-A
0V 0V 0V
0Hz
0V 0V 0V
A-B B-C C-A
Not OK to Transfer
Static Switch Connected
MOD 1 ON LINE SUM ALM
MOD 2 ON LINE SUM ALM
MOD 3 ON LINE SUM ALM
A-B B-C C-A
480V 480V 480V
60.0 Hz
SCCT1600
OUTPUT VOLTAGE
627 KVA / 502 KW
755A 755A 755A
3OF3MODULES
CONNECTED
REDUNDANT
ABC
Time To Overload
Transfer: XXXX SEC
LOADBLOCK
MESSAGES
ALARM
MESSAGES
MODULE STATUS
MESSAGES
SYSTEM STATUS
MESSAGES