Attention, Ground cable shields at one end only, Do not exceed 10v dc on any input terminal – Rockwell Automation 1746-MPM INSTALL INSTRUC MOLD PRESSURE User Manual
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4
Mold Pressure Module
Publication 1746-5.13 July 1998
2. Wire the module
ATTENTION:
Disconnect all power to the SLC system before wiring.
Use the terminal block for connecting these devices:
Wiring Notes
•
Ground cable shields at one end only.
•
Isolate signal wiring from power lines and sources of electrical noise.
•
Do not exceed 10V dc on any input terminal.
•
Outputs +Exc, +T/R, and -T/R must have a minimum load of 1K ohms.
referenced to analog common.
Terminal #
Device
1, 2
RS-485 cable to your PC
3, 7, 9
calibration wiring for channel 1(see section 7)
3, 8, 10
calibration wiring for channel 2 (see section 7)
4
connection used to zero both channels (see section 6)
5, 6
cable shields (connected internally to chassis ground)
13, 15
2-wire sensor input to channel 1
11, 13, 15, 17
4-wire sensor input to channel 1
14, 16
2-wire sensor input to channel 2
12, 14, 16, 18
4-wire sensor input to channel 2
+T/R
-T/R
Cal
Zero
Shld
Cal1 R
+Exc 1
-Exc 1
+Exc 2
-Exc 2
Cal2 R
+Sgnl 1
-Sgnl 1
+Sgnl 2
-Sgnl 2
Shld
Cal 2
Cal 1
4-wire sensor
(mold pressure)
another
1746-MPM
module
2-wire sensor
(hydraulic pressure)
RS-485 Converter
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
8
7
9