PROTECTIVE FUNCTIONS
144
FR-PU04 Indication
OH Fault
Name
External thermal relay operation (Note 3)
Description
If the external thermal relay designed for motor overheat
protection or the internally mounted temperature relay in the
motor switches on (contacts open), the inverter output is
stopped. If the relay contacts are reset automatically, the
inverter will not restart unless it is reset.
Check point
•
Check for motor overheating.
•
Check that the value of 7 (OH signal) is set correctly in any
of Pr. 180 to Pr. 183 (input terminal (remote output)
function selection).
Corrective action
Reduce the load and operating duty.
Note:3 This function is activated only when OH has been set to any of Pr. 180 to
Pr. 183 (input terminal (remote output) function selection).
FR-PU04 Indication
Stll Prev STP
Name
Stall prevention
Description
The running frequency has fallen to 0 by stall prevention
activated. (OL while stall prevention is being activated.)
Check point
Check the motor for use under overload.
Corrective action
Reduce the load weight.
FR-PU04 Indication
Option alarm
Name
Option alarm
Description
If the connection fault of the internal connector occurs, the
inverter output is stopped.
When the high power factor converter connection has been
set, connecting an AC power supply to R, S, T displays this
alarm.
Check point
Corrective action
Consult your sales representative.
FR-PU04 Indication
Corrupt Memry
Name
Parameter storage device alarm
Description
A fault occurred in parameters stored (example: E
2
PROM
fault).
Check point
Check for too many number of parameter write times.
Corrective action
Please contact your sales representative.
To Next Page
Loading...
