Mitsubishi FR-A800 User Manual

Check first when you have a trouble
PROTECTIVE FUNCTIONS
671
6
6.6.13 Unable to write parameter setting
6.6.14 Power lamp is not lit
Check
points
Possible cause Countermeasure
Refer to
page
Input
signal
Operation is being performed (signal STF or
STR is ON).
Stop the operation.
When Pr.77 Parameter write selection = "0" (initial value),
write is enabled only during a stop.
267
Parameter
Setting
You are attempting to set the parameter in the
External operation mode.
Choose the PU operation mode.
Or, set Pr.77 Parameter write selection = "2" to enable
parameter write regardless of the operation mode.
267, 306
Parameter write is disabled by the Pr.77
Parameter write selection setting.
Check the Pr.77 setting. 267
Key lock mode is enabled by the Pr.161
Frequency setting/key lock operation
selection setting.
Check the Pr.161 setting. 263
Operation mode and a writing device do not
correspond.
Check Pr.79, Pr.338, Pr.339, Pr.550 and Pr.551, and select an
operation mode suitable for the purpose.
306, 316
Pr.72 PWM frequency selection was
attempted to be set to "25".Alternatively, PM
sensorless vector control was attempted while
Pr.72 = "25".
Pr.72 = "25" cannot be set under PM sensorless vector control.
(A sine wave filter (MT-BSL/BSC) cannot be used under PM
sensorless vector control.)
277
Check
points
Possible cause Countermeasure
Refer to
page
Main
Circuit
Control
Circuit
Wiring or installation is improper.
Check for the wiring and the installation.
Power lamp is lit when power is supplied to the control circuit
(R1/L11, S1/L21).
37

Mitsubishi FR-A800 Specifications

General

Brand	Mitsubishi
Model	FR-A800
Category	Inverter
Language	English