25: PID control pause
26–39: Reserved
40: Zero out power consumption
41: Maintain power consumption
42: Air filter blockage signal
43: Oil filter blockage signal
44: Separator blockage signal
45: Precision splitter blockage signal
46: External fault 1 (motor overtemperature)
47: External fault 2
48: Fan running control signal
49: Solenoid valve control signal
50: Cooling fan control signal of main motor
51–63: Reserved
This function code is used to set the input
terminal polarity.
When the bit is set to 0, input terminal polarity
is positive;
When the bit is set to 1, input terminal polarity
is negative.