Mitsubishi Electric FR-A800, Instruction Manual

Page: 903 / 1042

Protective functions Causes and corrective actions
FR-A800 6 - 15
Operation panel
indication
SL FR-LU-08 SL
Name Speed limit indication
Description Output if the speed limit level is exceeded during torque control.
Check point
앫
Check that the torque command is not larger than required.
앫
Check if the speed limit level is set too low.
Corrective action
앫
Decrease the torque command value.
앫
Increase the speed limit level.
Operation panel
indication
CP FR-LU-08 CP
Name Parameter copy
Description
Appears when parameter copy is performed between inverters FR-A820-03160(55K) or lower,
FR-A840-01800(55K) or lower, FR-A820-03800(75K) or higher and FR-A840-02160(75K) or higher.
Check point
Resetting of Pr. 9, Pr. 30, Pr. 51, Pr. 56, Pr. 57, Pr. 61, Pr. 70, Pr. 72, Pr. 80, Pr. 82, Pr. 90 to Pr. 94, Pr. 453,
Pr. 455, Pr. 458 to Pr. 462, Pr. 557, Pr. 859, Pr. 860 and Pr. 893 is necessary.
Corrective action Set the initial value in Pr. 989 "Parameter copy alarm release".
Operation panel
indication
SA FR-LU-08 —
Name Safety stop
Description Appears when safety stop function is activated (during output shutoff ). (Refer to page 2-54.)
Check point
앫
Check if an emergency stop device is activated.
앫
Check if the shorting wire between S1 and PC or between S2 and PC is disconnected when
not using the safety stop function.
Corrective action
앫
An emergency stop device is active when using the safety stop function. Identify the cause
of emergency stop, ensure the safety and restart the system.
앫
When not using the safety stop function, short across terminals S1 and PC and across S2 and
PC with shorting wire for the inverter to run.
앫
If "SA" is indicated when wires across S1 and SIC and across S2 and SIC are both conducted
while using the safety stop function (drive enabled), internal failure might be the cause.
Check the wiring of terminals S1, S2 and SIC and contact your sales representative if the
wiring has no fault.