terminals 3 and 4.
Wiring graph of instruments with D2 dimension as below:
Note 1: D2 dimension instruments don’t support 0～
5V or 1～5V linear voltage input. However, 0～5V or
1～5V signal can be converted to 0～500mV or 100～
500mV by connecting external precise resistors, 4～
20mA can be converted to 100 ～ 500mV by
connecting a 25ohm resistor, then be inputted from
terminals 9 and 8.
Note 2: For COMM/AUX slot, if S or S4
communication module is installed in, it can be used
for communication; if L2 or L5 module is installed in,
and parameter bAud is set to 0, it can be used for
AU1 or AU1+AU2 alarm output; if L1, L2, L4, G, K1,
W1 or W 2 is installed, it can be the auxiliary output in bidirectional (heating/refrigerating) control (Auxiliary output
doesn’t support analog current output); if I2 is installed and bAud is set to 1, then it can input on-off signal to switch
SV1 and SV2 by connecting a switch between terminals number 3 and 5.
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