IMPORTANT
SLC 500 series A chassis (1746-A4, 1746-A7, 1746-A10, and 
1746-A13) manufactured before November 1992 have a resistor 
between the logic ground and chassis ground as the drawing on 
the following page illustrates. This resistor could be damaged if 
the wiring recommendation described within the attention box 
above is not followed. See the figure on the following page for 
the location of the resistor. SLC 500 series A chassis (1746-A4, 
1746-A7, 1746-A10, and 1746-A13) with a manufacture date of 
November 1992 or later do not have this resistor. SLC 500 
series B chassis have a 1 MW resistor that limits the current 
between logic ground and chassis ground.
SLC Chassis
1746-P3
Functional Ground
Not Used
Not Used
+24V dc
DC Neut
Chassis 
Ground
Safety Ground
Controller Logic Ground
Functional GroundTotal PPS180-40 
Total 7000-M0
emecanique VR2SA2121
Sütron TP32ET-01/029049
Sütron BT20N BT20N/081030
Stromag ADC 006.3
SMAK Baugruppe SMAK GL 4904.3200
SK1 Baugruppe SK1 GL 4905.5400
Control Techniques 140X8/16
Control Techniques 140X14/28 28A
Control Techniques 140X14/28 DCD AS-IS
Control Techniques 140 X 14/28 140X14/28
Control Techniques 2400-8000 24008000
Control Techniques 2400-8001
Control Techniques 2450-4000
Control Techniques 2450-4012
Control techniques 566-860-000
Control Techniques 6150
Control Techniques 6M4Q30
Control Techniques 75EZB300CACAAA 876248
Control Techniques 8200-00048

1756-HYD02  1756-HYD02   1756-HYD02
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Control Techniques 8200-00161ENC 820000161ENC
Control Techniques 94501MVO
Control Techniques 9500-8411
Control Techniques 9500-8602
Control Techniques V75 ICD 
Control Techniques V4500-R 
Control Techniques VB400
Control Techniques VBE220-R ICD001
Control Techniques VB75-ICD-NP
Control Techniques CD2/CDII
Control Techniques CTIU100K-001