Corrected from:
Inverter Drives 8400 StateLine, HighLine, and TopLine from firmware version 14.00.00.00
Response of the new version?
An Id7 error does not occur anymore.
Which products are affected?
8400HighLine and TopLine: FW version ≤ 13.00.00.00
What happens?
In the case of a profile change during the deceleration phase of a movement via the profile generator in the MCK, the drive rotates faster than expected, accelerates more strongly than expected, and/or reversing is caused. In the worst case, the drive accelerates to 200% of C011.
A profile change during the deceleration phase typically occurs:
during manual jog in inching mode, e.g. using a joystick control. By this, we are also referring to repeated triggering in the same direction of manual jog
during positioning triggered by TouchProbe or via the MCK control interface
When does the problem occur?
The following conditions must all be met at the same time:
- An S-ramp > 0ms is set for the sequence profile.
- The profile change is effected during the deceleration phase of the first profile
- The acceleration in the sequence profile is set considerably lower than the deceleration in the first profile. In the order of: deceleration1/acceleration2=10/1
Long S-ramp times tend to increase the value of the excess speed.
Diagnostics options?
If the response described above occurs during the profile change, the S-ramp time in the sequence profile should be set to tJerk=0ms on a trial basis. If the profile parameters are maintained in the movement then, this indicates the restriction described.
Short-term measures/recommendations?
During manual jog, a suitable function block interconnection can prevent a profile generation from being restarted before the last profile generation is completed.
As an alternative, basically an S-ramp time of tJerk=0ms can be set for the sequence profile if the application does not absolutely require a jerk limitation.
Evaluation:
Non-compliance with the profile parameters may result in product and/or machine damage. By default, the setpoint limitation upstream of the speed controller via C909/1+2 executes a limitation to +/-120% of C011. The restriction typically has an effect during manual jog with inching
