Operation
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.
Содержание Liebert FS Series
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