Front Panel Layout (All Units); Epo (Emergency Power Off) Function; Audible Alarm Functions - Toshiba 4200FA User Manual

5.11

Front Panel Layout (All Units)

Refer to the following illustration for the entire UPS front panel operating procedures.
4-line liquid
crystal display
screen (see
Section 6.9)
line-1
line-2
line-3
line-4
AC IN INV BYP
BATT
Green light emitting
diodes (LED)
Red light emitting
(see Section 6.8)
diode (LED)
(see Section 6.8)
5.12

EPO (Emergency Power Off) Function

These units are equipped with terminals for receiving an EPO (Emergency Power Off) "closed
contact" switch command from two locations: (1) a remote location and (2) from a front panel
mounted EPO switch. This safety feature enables quick shutdown of the UPS AC output and
battery circuits.
accessible to personnel concerned with the operation of the UPS and the equipment
connected to it. The EPO function is initiated by pressing the switch to the closed "shutdown"
position. The effect of using the EPO switch is the same whether the UPS is in the AC Input
Mode, Battery Backup Mode, or the Bypass Mode. See 'EMERGENCY OFF' screen. The
following figure shows the UPS condition after application of the EPO switch. Use the Start-
up Procedure for restarting the unit.
Input
Transformer
Model
Input
Power

5.13 Audible Alarm Functions

Audible alarms will sound when the UPS is in the Battery Backup Mode, has a fault, is at the
low battery voltage, or is in an overload condition. The following chart shows the audible alarm
TOSHIBA
Emergency
power off switch
(see Section 6.6)
MONI BATT F1
OUT BATT
IN
TEST
BUZZ
MENU ENTER
STOP
FAULT
RESET
12-key Data entry
keypad (see
Section 6.14)
Usually the EPO switch is installed in a central location that is easily
OFF
TRIPPED Converter
MCCB
40
STOP/RUN key
switch
STOP
EPO
4200 Series
UNINTERRUPTIBLE POWER SYSTEM
MBS
Bypass
OFF
Inverter
OFF
Chopper
Batteries
UPS
RUN
ON-LINE
Output
Power