13 | Diagnostics
STOBER
190
02/2019 | ID 442728.05
13.3.10 Event 39: Overtemperature drive controller i2t
The possible effects depend on the configured level (U02):
§
0: Inactive
§
1: Message
§
2: Warning
§
3: Fault
The maximum permitted output current is limited to 100% of I
2N,PU
(R04). If the i
2
t value (E24)
increases to 105%, event 59: Overtemperature drive controller i2t is triggered.
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
Wrong drive controller design
Check the design and change the drive controller type if necessary
Increased or reduced
mechanical friction
Check the service status of the mechanics and service them if
necessary
Mechanical block
Check the output and correct the block if necessary
Short deceleration/
acceleration times
Check the actual current during the braking process using the scope
image (E00); reduce the deceleration and acceleration values if
necessary
Clock frequency too high
Check the utilization of the drive, taking into account derating and the
configured clock frequency (E20, B24); reduce the configured clock
frequency or replace the drive controller if necessary
Tab. 193: Event 39 – Causes and actions