Operator Manual Controls; Bypass/Online Switch; Epo (Emergency Power Off) Function; Figure 9-2 Effect Of Epo Activation - Toshiba 4200FA Installation And Operation Manual

NOTE: On-Line/Fault LEDs - Appear Amber if Green and Red flash concurrently.
9.3

Operator Manual Controls

9.4

Bypass/Online Switch

Switches the UPS between On-Line and Bypass modes.
9.5

EPO (Emergency Power Off) Function

These units are equipped with a front panel mounted EPO switch.
This safety feature enables quick shutdown of the UPS AC output and battery circuits.
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.
UPS Cabinet
AC Input
MCCB
3Ph/4W
TRIPPED
High
Freq.
Filter
64
Maintenance Bypass Rotary Switch
Static Switch Bypass
SYNC
Inverter
Converter
Input
Contactor
OFF OFF
OFF

Figure 9-2 Effect of EPO Activation

Output
Contactor
High
Freq.
Filter
DC Chopper/
Charger
4200FA Installation and Operation Manual
AC Output
3Ph/4W