6
Alarm (ALM):
is commonly used to be alarm output. Support 1 norma
lly
open + normally close relay output
(AL1) by installing L1 or L2 module or 2 normally open relay outputs (AL1+AL2) by installing L5 module.
Auxiliary output (AUX):
In a heating/refrigerating dual output system, module X3, X5, L1, L4, G, W1, W2 can be
installed for the second control output. It can also output alarm by installing L1, L2 or L5 module, or be used for
communicating with computer by installing R module (RS232C interface).
Communication Interface (COMM):
Module S or S4 can be installed in for communicating with computer
(RS485 communication interface), and it can also be used as power supply for external sensor when equipped
with a voltage output module.
1.3.2 Commonly used modules:
N
(or null) no module installed
L2
normally open + normally close relay output module (small volume, capacity: 30VDC/1A, 250VAC/1A, suitable for
alarm)
L1/L4
Large capacity normally open relay output module (large volume, Capacity: 30VDC/2A, 250VAC/2A)
L5
Dual normally open relay output module (Capacity: 30VDC/2A, 250VAC/2A)
W1/W2
TRIAC no contact normally open (W2 is normally close) discrete output module (Capacity:
100-240VAC/0.2A)
G
SSR voltage output module (DC12V/30mA time proportional output)
K1
Single-phase thyristor zero crossing trigger output module (can trigger one loop of a TRIAC or a pair of inverse
parallel SCR with current of 5-500A)