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. 6-60: Alarm signals
The ALM signal is assigned to the ABC contact in the default setting. By setting "99 (positive
logic) or 199 (negative logic) in Pr. 190 to Pr. 192 "Output terminal function selection", 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 to Pr. 192 "Output terminal function selection" to assign the
function to the output terminal.
Operation Panel Indication
Tab. 6-33: Faults that lead to Y91 signal output
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 - 128
Inverter alarm occurrence
Brake transistor alarm detection
Output side earth (ground) fault overcurrent
Output phase loss
Parameter storage device fault
Internal board fault
Inrush current limit circuit fault