Operation
3-16
GUPS 2400A
–104 Operation Manual
Pass/Fail System Self-Test (Status Word 2, Bit 9)
The Pass/Fail System Self-Test status bit indicates the results of the last run system self test.
A binary value of 1 indicates that the unit passed the last self-test, while a binary value of 0
indicates that the unit failed the last self-test.
System Down (Status Word 2, Bit 10)
The System Down status bit indicates that the unit is in shutdown mode. A binary value of 0
indicates that the unit is operational, while a binary value of 1 indicates that the system is in
shutdown mode.
AC Input Line (Status Word 2, Bit 11)
The AC Input Line status bit indicates the condition of the AC input line. A binary value of 0
indicates that the AC input line is within the specified input range, while a binary value of 1 is not
within the specified input range.
Delayed Event Flag (Status Word 2, Bit 12)
The Delayed Event Flag status bit indicates the status of pending delayed events. A binary
value of 0 indicates that the unit has no pending delayed events, while a binary value of 1
indicates that unit has at least one delayed event pending.
Status Word 2, Bit 13
Reserved.
Status Word 2, Bit 14
Reserved.
Improper Output Voltage (Status Word 2, Bit 15)
The Improper Output status bit indicates that the unit has sensed a sustained low voltage
condition on the output. A binary value of 0 indicates that the output is normal, while a binary
value of 1 indicates that the output voltage has dropped to less than 80 % of its nominal value.
3.9.7
AC Line Loss Signal
When the AC line is lost, the GUPS 2400A
–104 will send the message ―Line Loss Detected‖ out
the RS-232 port. Applications may use this as a trigger to take action on a host computer.
Summary of Contents for GUPS 2400A-104
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