Installation, connection and commissioning
33
VMD460-NA_D00001_05_M_XXEN/01.2020
Wiring diagram legend
* Explanation: NC (in non-operating state closed)
NO (in non-operating state open)
off (switched off).
No.
Element Function
1 A1, A2
Supply voltage U
s
(see ordering details)
2 L1, L2, L3, N Power supply connection
3 K1, K2 Relay connections
4 DG1/2, D1, D2
Interface switch with contact monitoring
D1: Feedback signal contact K1
D2: Feedback signal contact K2
(feedback signal contacts optionally NC/NO/off)*
5 RTG, RT1
RTG: GND
RT1: remote trip input (optionally NC/NO/off)*
6 A, B Service interface
7
R
on/off
Activate or deactivate the terminating resistor of the service interface (120 Ω )
DG3/4, D3, D4 Not used for these standards
The interface switch is monitored by means of contact feedback. Faulty
conditions such as welded contactor contacts can thus be detected.
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