Alpha Technologies CFR 600, CFR 600XT, CFR 1000 - Manual (Page 52)

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5. RS-232 TERMINAL COMMUNICATION
5.12 Event Descriptions, continued
Input Line Fail - Indicates that the UPS switched to backup power to
protect the equipment for one (or more) of the above conditions. * *
Normal Line Mode - Indicates that the UPS is drawing power from the
AC line and charging the batteries.
Test Mode - Indicates the UPS was put into a test mode condition either
by the TEST SCHEDULE routine or by pressing the TEST button on the
Intelligent Interface Device's panel. The unit will switch to backup power while
in the test mode. * *
Float Charge Mode - This is the normal operating mode of the battery
charger. During LINE PRESENT operation, the batteries constantly receive a
"Float" charge voltage to ensure that backup power is available when
required.
Service Codes (1-6) - These codes indicate a potential fault within the
UPS. Call Alpha Customer Support and report any displayed Service Codes.
Also refer to the Troubleshooting section (6.7) of the manual.
Serv Code 1 - Phase Lock Loop Failure. The phase lock loop circuitry
has failed to lock onto the AC input LINE due to instability of the frequency. If
the UPS is operating from a generator, check the frequency and adjust it if
necessary.
Serv Code 2 - Micro software reset. The internal “watch dog” circuit has
detected a fault and reset the software. Contact Alpha to help determine the
cause of the fault.
Serv Code 3 - Micro hardware reset. A micro hardware reset is
activated as part of the power on condition. If this alarm occurs during normal
operation, it may indicate a malfunction in the hardware circuitry. Contact
Alpha to help determine the cause of the fault.
Serv Code 4 - Power board EEPROM fault. The EEPROM on the
power board contains the unit configuration information. If this fault occurs, it
signifies either the configuration information has been corrupted, the EEPROM
has malfunctioned, or there is a loose connection inside the UPS.
Serv Code 5 - Power board hardware fault. The control circuitry on the
power board has detected a hardware fault condition which impedes correct
operation of the UPS.
Serv Code 6 - Neg DC supply rail fail. The negative voltage power
supply to the microcontroller has malfunctioned.
EMGNCY POFF - Emergency power shutdown.
OUTV SHTDWN - See menu 505 & 506 (see section 5.9).
* * Indicates events that cause the UPS to operate in “LINE FAILURE” mode.