Terminal assignment
Figure 19: Connecting the Ex overpressure control
1
Terminals
Table 8: Terminal assignment
Terminals
Designation
1, 2
Signal contact 1
3, 4
Signal contact 1
5, 6
Connection for purge medium valve
7, 8
– power supply (feed)
9, 10
+ power supply (feed)
Table 9: Terminals with higher safety in the FS840
Tightening torques
Wire cross-sections rigid / flexible
Min. 0.3 Nm
Min. 0.3 mm
2
Max. 0.4 Nm
Max. 2.5 mm
2
NOTICE
Always maintain the limit values on the respective terminals. Refer to the Technical
Data or the Test Certificate for the limit values. The fitted valve fuse must correspond to
the specified fuse value of the purge medium valve used.
Limit values,
see "Limit values for terminal assignment FS840", page 92
NOTE
Further information on the pressurized enclosure system,
and FS840 Operating Instructions.
ELECTRICAL INSTALLATION
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8019532/100Q/V1-1/2018-08 | SICK
O P E R A T I N G I N S T R U C T I O N S | GM700 Ex
43
Subject to change without notice
