Keying Connectors - Siemens SIMATIC C7-626 Installation, Assembly, Wiring

2.8

Keying Connectors

Overview
A set of connectors with solid and profiled coding keys can be ordered as C7
accessories (see Section 2.1 under Accessories). This section describes how
to key the connectors.
Keying The solid coding keys
Connectors prevent a connector from being confused with another without polarity
reversal.
Proceed as follows:
1. Insert the solid coding key
2. Insert the profiled coding key
Solid and profiled coding keys that face each other prevent the connector
from being plugged in.
The connector can be plugged in if solid and profiled coding keys do not face
each other.
Figure 2-11
Warning
!
If you confuse the connectors, the device may be destroyed.
C7-626 / C7-626 DP Control Systems
C79000-G7076-C626-01
and profiled coding keys
part .
part .
1
How to Key Connectors
Installing and Preparing the C7
(see Figure 2-11)
into the notches provided on the connector
into the respective cutouts on the housing
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