12 | Diagnostics
STOBER
172
05/2019 | ID 442790.01
12.2.35
Event 79: Motor / position monitor
The possible effects depend on the configured level (U28).
§
0: Inactive
§
1: Message
§
3: Fault
The drive controller is interrupted if:
§
A29 = 0: Inactive for STOBER device controller
or
§
A540 = 0: disable drive, motor is free to rotate for CiA device controller
Response:
§
The power unit is disabled and axis movement is no longer controlled by the drive controller
§
The brakes are no longer controlled by the drive controller and engage in the event of an inactive release override
(F06)
The drive controller is interrupted with a quick stop if:
§
A29 = 1: Active for STOBER device controller
or
§
A540 = 2: slow down on quick stop ramp for CiA device controller
Response:
§
The axis is stopped by a quick stop; meanwhile, the brakes are controlled by the drive controller and remain released
§
At the end of the quick stop, the power unit is disabled and axis movement is no longer controlled by the drive
controller; the brakes are no longer controlled by the drive controller and engage in the event of an inactive release
override (F06)
Cause
Check and action
Connection error
Check the connection and shielding and correct them if necessary
Slip
Check the mechanics between the motor and position encoder and maximum
permitted slip and correct them if necessary (I291, I292)
Mechanical damage
Check the mechanics between the motor and position encoder and correct any
damage if necessary
Tab. 181: Event 79 – Causes and actions