Filter
Top Products
31
Errors (Alarms)
PROTECTIVE FUNCTIONS
3
3.1.2 Alarm symptoms and check points
At occurrence of an instantaneous power failure alarm or power supply alarm, the inverter output may
be shut off to coast the motor before the power regeneration common converter outputs an alarm.
In a system where an alarm will cause an emergency stop, configure up a system that will not only
provide alarm outputs of the power regeneration common converter and inverter but also make a stop
if the RUN signal of the inverter turns off.
Symptom Check point
Operation is not normal. Check connection.
zCheck for incorrect wiring.
zCheck that a normal power supply voltage is applied.
zCheck that the phase sequence matches.
zCheck for a short across terminals RES-SD.
The CHARGE lamp is not lit. Check connection.
zCheck for incorrect connection.
zCheck that the main circuit terminals R2/L1, S2/L2, T2/L3 are wired correctly.
The reactor becomes abnormally hot. Check connection.
zCheck for incorrect connection.
zCheck that the phase sequence matches.
The inverter cannot be run. Check setting.
zFor the FR-A700, F700, A500, F500 or V500 series inverter, check that the Pr. 30
"Regenerative function select" setting is 2 (high power factor converter, power
regeneration common converter).
CAUTION