5 display of alarm, pre-alarm, etc – Toshiba Tosvert VF-AS1 User Manual
Page 220
E6581301
H-12
8
8.5
Display of alarm, pre-alarm, etc.
When the inverter alarm, pre-alarm, etc. occurred, the contents are displayed. (Some are not displayed.)
Listed below ones can be monitored via communication (FC91). Refer to 13.1 for the other alarms.
Bit
Description
Panel indication
0
Overcurrent pre-alarm
E
1
Inverter overload pre-alarm
N
2
Motor overload pre-alarm
N
3
Overheat pre-alarm
J
4
Overvoltage pre-alarm achieving PBR operation level
R
5
Main circuit undervoltage detected
OQHH
6
(Reservation area)
-
7
Low current alarm
-
8
Overtorque detection
-
9
Braking resistor overload pre-alarm
-
10
Cumulative operation time alarm
-
11
PROFIBUS/DeviceNet/CC-Link communication error
V
12
RS485 communication error
V
13
(Reservation area)
-
14
Forced deceleration stop because of a momentary power failure
UVQR
15
Pre-alarm stop because of prolonged lower-limit frequency operation
NUVR
Note: For each bit, “0” indicates normal condition and “1” indicates appearance of alarm, etc.