E6582062
6-149
6. [Advanced] How to use parameters
3
4
6
9
6. 30. 20 Protecting the control power supply option unit at a
time of failure
<F647: Control power option failure detection>
■
Function
When the control power supply option unit (CPS002Z) is used, if the unit does not output the voltage
for 15 minutes or more due to some error, this function can activate alarm display or tripping.
■
Parameter setting
■
How to select a setting value
0: Alarm (no detection without option)
This is selected when the control power supply backup is not necessary.
When no control power supply is input between terminals [+SU] externally, use this setting.
Also when the control power supply backup is selected, when failure occurs during run, the inverter
output is shut off and the alarm "COFF" is displayed. When failure exists already at the time of
voltage input, errors are not detected.
1: Alarm
This is selected for the control power supply backup (alarm output).
When voltage of the control power supply which is input to terminal [+SU] drops, the inverter output
is shut off, and the alarm "COFF" is displayed.
Once "COFF" has occurred, the alarm is not reset even when the control power supply voltage is
recovered to the normal level. The alarm can be reset by turning off the power circuit.
2: Trip
This is set for the control power supply backup (trip output).
This option enables the inverter trip when voltage of the control power drops. The trip display is "E-29".
Different from the normal trip, the trip is maintained regardless of the setting status of <F602: Trip
record retention>.
This setting is valid when the standard connection in [2. 3. 2] is used.
When an inverter failure occurs while the control power supply has an failure as follows, the main
power supply may turn ON/OFF repeatedly. In such a case, select "1: Retain at power off" in <F602:
Trip record retention>.
Title
Parameter name
Adjustment range
Default setting
F647
Control power option
failure detection
0: Alarm (no detection without option)
1: Alarm
2: Trip
0
0: Alarm (no detection w/o option)
1: Alarm
2: Trip
0.0Hz
STOP
14:06
F647 : Control power option failure
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