SAMWONTECH
4th Edition of TEMI880 IM : Jan. 29. 2007 Page 11 / 119
1.4.2.2 I/O1 RELAY BOARD
1.4.2.3 I/O2 RELAY BOARD
RLY7_NC RLY7_NO COM4
RLY8_NO
RLY8_NC RLY9_NC
RLY9_NO
COM5
RLY10_NO
RLY10_NC
External relay switch
→ It is operated with
RLY 10 on the “AND”
condition.
P10
AOUT1- AOUT1+
Temp. control output
AOUT2- AOUT2+
Humi. control output
RET1- RET1+
Temp. transmission output
RET2- RET2+
Humi. transmission output
RLY6
COM3
RLY5
RLY4
COM2
RLY3
RLY2
COM1
RLY1
+24V GND
DI_COM DI8 DI6 DI4 DI2
DI_COM DI7 DI5 DI3 DI1
I/O1
LINK
L N FG
220V AC
COM4
I/O2
LINK
I/O2 BOARD
GND +24V
RLY20 RLY19 COM3 RLY18 RLY17
COM2
RLY16
RLY15
RLY14
COM1 RLY13 RLY12 RLY11
I/O1 BOARD