Mitsubishi Electric FR-D720S SC EC Instruction Manual page 252

Function assignment of external terminals
Alarm output signal (ALM)
If the inverter comes to trip, the ALM signal is output. (Refer to section 7.1.)
Fig. 6-52: Alarm signals
NOTE The ALM signal is assigned to the ABC contact in the default setting. By setting "99" (posi-
tive logic) or "199" (negative logic) in Pr. 190, Pr. 192 or Pr. 197, the ALM signal can be
assigned to the other signal.
Fault output 3 (power-off signal) (Y91)
The Y91 signal is output at occurrence of a fault attributable to the failure of the inverter circuit
or a fault caused by a wiring mistake. When using the Y91 signal, set "91 (positive logic)" or "191
(negative logic)" to any of Pr. 190, Pr. 192 or Pr. 197 to assign the function to the output terminal.
Operation Panel Indication
Tab. 6-17: Faults that lead to Y91 signal output
NOTE
At occurrence of output side earth (ground) fault overcurrent (E.GF), overcurrent trip during
acceleration (E.OC1) may be displayed. At this time, the Y91 signal is output.
6 - 102
Inverter alarm occurrence
(output shutoff)
ON
ON
Reset ON Reset processing
(about 1s)
Name
E.BE Brake transistor alarm detection
E.GF Output side earth (ground) fault overcurrent
E.LF Output phase loss
E.PE Parameter storage device fault
E.CPU CPU fault
E.IOH Inrush current limit circuit fault
Parameter
Time
I001797E