The topic is documented in general terms at Limits on Task Resource Usage.
The limits are defined in System Generation either at system level and can be overridden at task level in the same manner that many System Generation parameters can be.
In the running online system, you can view the current limits with DCMT DISPLAY LIMITS and dynamically vary them with DCMT VARY LIMITS.
At task level, use DCMT DISPLAY TASK and DCMT VARY TASK.
To avoid the abend, limits can be disabled with the above commands.
However it is strongly advised to first investigate why the task is exceeding the limit and consider that most likely, it was implemented for a reason.
If allowed to continue unchecked, the task may seriously impact system performance, for example, by filling the journals.