ublication 1747-UM011G-EN-P - June 2008
Determining the Date of the SLC 500 Series A Chassis
The date of the chassis is found withinthe serial number imprinted on the 
chassis nameplate on the right side of the chassis.
Master Control Relay A hard-wired master control relay (supplied by you) provides a convenient 
means for emergency controller shutdown. Since the master control relay 
allows the placement of several emergency-stop switches in different locations, 
its installation is important from a safety standpoint. Overtravel limit switches 
or mushroom head push buttons are wired in series so that when any of them 
opens, the master control relay is de-energized. This removes power to input 
and output device circuits.
Place the main power disconnect switch where operators and maintenance 
personnel have quick and easy access to it. If you mount a disconnect switch 
inside the controller enclosure, place the switch operating handle on the 
outside of the enclosure, so that you can disconnect power without opening 
the enclosure.
CAT
MADE IN U. S. A.
SLC 500
RACK
SER
UL A 1746 - A7
SERIAL NO.
A7 -1195A1357
SA ®®
Month
Year
Right Side
ATTENTION
Never alter these circuits to defeat their function, since serious 
injury and/or machine damage could occur.
IMPORTANT
If you are using a dc power supply, interrupt the dc side rather 
than the ac side to avoid the additional delay of power supply 
turn-on and turn-off. The dc power supply should receive its 
power directly from the fused secondary of the transformer. 
Connect the power to the dc input and output circuits through a 
set of master control relay contacts.

Total 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
Control Techniques 8200-00161ENC 820000161ENC
Control Techniques 94501MVO
Control Techniques 9500-8411
Control Techniques 9500-8602
C1756-M02AS  1756-M02AS  1756-M02AS  
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