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55
6.2.2 System MODE Indicators
The Liebert FS has nine modes of operation: OFF, STARTUP, CHARGE, READY, DISCHARGE,
SHUTDOWN, COAST, FAULT and STANDBY. These are displayed on the main screen of the control
panel as identified in Figure 55. Table 5 lists the system Modes along with the corresponding Con-
tactor Status, and the Conditions required to operate in these Modes: external voltage range, speed
and command.
6.2.3 System STATUS Indicators
The Liebert FS system displays multiple status conditions during operation. Table 6 shows the com-
plete list of status indicators for the Liebert FS and the corresponding condition.
NOTE:
See 5.3 - Modes of Operation for further details on modes of operation.
Table 5 Operation modes
Mode Contactor
Condition
External Voltage Speed Command
OFF Open Vext < Vchg 0 ~ 3500 —
STANDBY Open Vext > Vchg 0 ~ 200 —
STARTUP Close Vext > Vchg 200 ~ Min Speed STARTUP
CHARGE Close Vext > Vchg Min Speed ~ Max Speed STARTUP
READY Close Vext > Vchg Max Speed ~ Max Speed + 200 STARTUP
DISCHARGE Close Vext < Vchg Min Speed ~ Max Speed STARTUP
COAST Close 330 < Vext < Vchg 200 ~ Min Speed STARTUP
SHUTDOWN Open Vext < 330 200 ~ Min Speed STARTUP
Open Any Min Speed ~ Max Speed SHUTDOWN
Close Vext > 330 200 ~ Min Speed SHUTDOWN
FAULT Open Any 0 ~ Max Speed —
STANDBY — After CLRFLT
Min Speed: Minimum operating speed; State of Charge (SOC) will be 0% at this speed.
Max Speed: Maximum operating speed; State of Charge (SOC) will be 100% at this speed.
Table 6 System status indicators
Message Condition
1 OK All systems operating normally.
2 READY All systems operational and ready for startup.
3 APPLY 520*V External voltage is less than the Charge Voltage*
4 n WARNINGS Multiple warnings
5 n FAULTS Multiple faults
6 OVERSPEED Speed is higher than the Max Speed plus 200 RPM
7 TESTING VACUUM Vacuum testing at 10000 RPM
8 OPENING CONTACTOR Waiting until the current is stabilized
9 CLOSING CONTACTOR Waiting until the voltages are stabilized
10 WAIT Waiting until the voltages are stabilized
* Charge voltage is an adjustable user parameter; 520V is used only as an example.