High Suction Pressure

What does HISUC mean?

The suction pressure has risen above the level set in Q5-12 for longer than the time set in Q5-13. This fault is effective only when Q5-14 (High Suction Pressure Behavior Select) is set to 2 (fault).

• System suction pressure is too high, exceeding the Q5-12 threshold for the Q5-13 duration.

Click steps to track your progress.

1. 1

   Reduce the system pressure.

2. 2

   Set the High Suction Pressure fault characteristics using parameters Q5-12, Q5-13, and Q5-18.

3. 3

   Control drive response to this condition using Q5-14 (High Suction Pressure Behavior Select).

4. 4

   Control auto-restart of this fault using Q5-14 (High Suction Pressure Behavior Select) and Q5-15 (Suction Pressure Auto-restart Time).