Rockwell Automation 1336 8A-48A Fiber Industry - Manual (Page 120)

6–8 Troubleshooting
Table 6.C presents a listing and description of the drive alarms.
Alarm status can be viewed by selecting the [Drive Alarm]
parameter. An active alarm will be indicated by its corresponding bit
being set to high (1). Any high bit (1) will energize CR4 (see
figure 2.3).
Parameter Number 60
Parameter Type Read Only
Bus Charging
Regenerating Current Limit
Regenerating Voltage Limit
Line Loss In Progress
Motor Stalled Ground Warning
Bit 15 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Mtr Overload
Sync Loss
Bit 14
Hardware Current Limit
Motoring Current Limit
Unused
Unused
Voltage Check
Heatsink Temp
Auxiliary Input
4-20 mA Loss
Table 6.C
Alarm Conditions
Alarm Name Description
Bus Charging Precharge of DC bus capacitors is in progress.
Hardware Current Limit An alarm will be issued when 220% of drive rated current is
reached.
Motoring Current Limit The value programmed for [Current Limit] has been
exceeded while in the motoring mode.
Regenerating Current Limit An alarm will be issued when the value set for [Current
Limit] has been exceeded while the motor is regenerating.
Regenerating Voltage Limit Bus limiting is active.
Line Loss In Progress An alarm will be issued when the AC incoming voltage
drops below 20% of input or a 150 volt drop takes place.
Mtr Overload At the present value of output amps, a motor overload trip
will eventually occur.
Motor Stalled The drive output frequency folds to 0 Hz and current limit is
still active or voltage limit will not allow decel.
Ground Warning Ground current exceeds 2 amperes.
Auxiliary Input TB3 terminal 24 circuit is open.
Heatsink Temp Temperature of drive heatsink has exceeded its limit.
Sync Loss The synchronous motor has pulled out of sync.
Voltage Check Voltage at drive output terminals is equal to, or greater than
10% of drive rated volts (i.e. 46V for 460V drive) when
Start command is issued and flying start is disabled. Drive
will not start until terminal voltage falls below 10% of drive
rating or flying start is enabled.
4-20mA Loss 4-20mA signal lost.
Alarms