Line-4 System Messages - Toshiba 4200 series Operation Manual

6.9.4

Line-4 System Messages

Line-4 messages reflect the UPS operating conditions. Warning messages will be
displayed when an abnormal operating condition occurs. The following chart shows
the allowable Line-4 messages.
Displayed Message
PHEI
I/O NOT SYNCHRONIZE
* AUTOTRANSFER *
* BATTERY LOW *
* UPS OL: REDUCE LOAD *
* DCOC *
* DCOV *
* DCUB *
* UPS OL *
* FUSE OPEN *
* INOV *
* INUV *
* BATTOH *OR MCCB-B OPEN
* UPS OK *
* DISCHARGE CURR=###% *
* TRANSFER INHIBITED *
* EMERGENCY OFF *
* UPS OUTPUT DISABLED *
* FAULT(S) DETECTED *
Note:
1) Line-4 will be blank when the BATT key is pressed during battery backup mode with
normal battery voltage.
2) The # symbol signifies numerical values or other information supplied by the UPS.
TOSHIBA
Line-4 Messages
Meaning
Displayed when input Phase rotation is not wired for
clockwise rotation.
Displayed when input and output frequencies are not
synchronized. (abnormal)
Displayed when auto-transfer to bypass is active (i.e.
current limit reached). (abnormal)
Displayed when battery voltage is low (abnormal) or
the UPS batteries have failed self-diagnostic test.
(abnormal)
Displayed when UPS has tripped due to an overload
condition. (abnormal)
Displayed when the UPS has an internal failure.
(abnormal)
Displayed when the UPS has an internal DC bus
over-voltage. (abnormal)
Displayed when the UPS has an internal DC bus
unbalance referenced to Neutral. (abnormal)
Displayed when UPS has tripped due to an overload
condition. (abnormal)
Displayed when an internal transistor fuse opens.
Displayed when inverter output over-voltage has
occurred. (abnormal)
Displayed when inverter output under-voltage has
occurred. (abnormal)
Displayed when the optional battery over-temp
sensor has annunciated, or if the external battery
disconnect is open. (Verify TB3-5,6)
Displayed when none of the above abnormal
conditions are present. (normal)
Displayed when none of the above abnormal
conditions are present and the UPS is in battery
discharge mode. (normal backup)
Displayed when key switch position is changed and
frequency is not synchronized. (abnormal)
Displayed when an emergency (EPO) signal is
received.
Displayed when UPS has normally shutdown.
Displayed when a fault or faults have occurred.
(abnormal)
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