oP1.B=3, spare
oP1.B=4, 4～20mA linear current output. Linear current output module should be
installed to main output.
AUX does not support position proportional output or phase-shift trigger output.
For example, OUT and AUX all output 4～20mA linear current, then OPt=44.
0～110%: OPL is the minimum output of OUTP in single directional control system.
-1 1 0 ～ -1%: the instrument works for a bidirectional system, and has
heating/refrigerating dual output. When CF.A=0, OUTP (main output) works for
heating, and AUX (Auxiliary output) works for refrigerating. When CF.A=1, OUTP
works for refrigerating, and AUX works for heating.
In a bidirectional system, the heating and refrigerating ability are generally different.
O P L = -(power when AUX output is maximum /power when OUTP output is maximum)
x 100%.
For example, for a heating/refrigerating air condition, its maximum power of
refrigerating is 4000W, and maximum power of heating is 5000W, and AUX works for
refrigerating, then
OPL=- (4000/5000)x100% = -80%
The range of AUX output can’t be freely defined by user. If the internal calculation
requires maximum output of AUX (AUX output=OPL), then in 4～20mA output, the
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