Red Lion GMSG1 Strain Gage Input Module - Manual (Page 5)

5
-SIG
+SIG
COM
VDC+
VDC- +SIG
-EXC
-SIG
+EXC
-SIG
+SIG
COM
+EXC
-EXC
-SIG
+EXC
-SIG
COM
+SIG
+EXC
+SIG
+SEN
-SEN
6-Wire Bridge Input
INPUT CONNECTIONS
4-Wire Bridge Input 2-Wire Single Ended Input
BRIDGE COMPLETION RESISTORS
For single strain gage applications, bridge completion resistors must be employed externally to the module. Only use metal film
resistors with a low temperature coefficient of resistance.
Load cells and pressure transducers are normally implemented as full resistance bridges and do not require bridge completion resistors.
OUTPUT CONNECTIONS (3 Form A relays or 3 SSR; Each model has analog output)
OP1 +
OP2 +
+SIG2 (OPT)
+EXC2 (OPT)
10
11
12
9
8
7
OP2 COM
OP1 COM
Load
Power
Power
OP3 +
N/C
ANALOG+
ANALOG-
16
17
18
15
14
13
N/C
OP3 COM
Power
Load
N/C
OP3 +
OP3 COM
N/C
16
18
17
13
14
15
ANALOG-
ANALOG+
Recorder,
Controller,
Valve, etc
+
-
OP2 COM
+EXC2 (OPT)
+SIG2 (OPT)
OP2 +
OP1 +
10
12
11
78
9
OP1 COM
Load
+ -
Power +
-
Power
-
+
+ -
Outputs 1 and 2 - Relay Version
Outputs 1 and 2 - Solid State Version
Output 3 - Relay Version
Analog Output
OP3 +
N/C
ANALOG+
ANALOG-
16
17
18
15
14
13
N/C
OP3 COM
Load
+ -
Power +
-
Outputs 3 - Solid State Version