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ETV 1591-H
CONTROL PANEL
Page 42
24.03.2015
6.4
Wiring Guidelines for the Digital Outputs
A careful wiring method is recommended to ensure error-free function. The following guide-
lines should be observed:
Avoid parallel wiring between input lines and load-bearing circuits.
Protective circuits for all relays (RC networks or free-wheeling diodes)
Correct wiring to ground
6.4.1
Connecting Inductive Loads
Free-wheeling
diode
Contactor coil
Output
GND