Installation, connection and commissioning
35
VMD460-NA_D00001_05_M_XXEN/01.2020
Wiring diagram legend
Explanations :
*NC (in non-operating state closed)
NO (in non-operating state open)
off (switched off)
** In order to evaluate the inputs D3 and D4 the mode can be adjusted correspondingly in
the menu (menu: 3. Settings --> 1. General --> 4. Mode) :
Example for NO:
Connection D3, mode: local (D4 not evaluated)
Example for NO:
Connection D4, mode: external (D3 not evaluated)
No.
Element Function
1 A1, A2
Supply voltage U
s
(see ordering details)
2 L1, L2, L3, N Power supply connection
3
DG1/2,
D1, D2
Contact monitoring interface switch
DG1/2: GND
D1: Feedback signal contact K1
D2: Feedback signal contact K2 (backup)
(feedback signal contact optionally NC/NO/off)*
4 K1, K2 Relay connections
5
DG3/4,
D3, D4
Digital inputs (external monitoring)
DG3/4: GND
D3: local control (CEI 0-21 8.6.2.1.1)**
D4: external signal (CEI 0-21 8.6.2.1.2)**
(optionally NC/NO/off)*
6 RTG, RT1
RTG: GND
RT1: remote trip input (optionally NC/NO/off)*
7 A, B Service interface
8
R
on/off
Activate or deactivate the terminating resistor of the service interface (120 Ω )
D3: local control f [Hz]
Disconnection
time
Parameter
Open 49.5…50.5 0.1 s 81.S1
Closed 47.5…51.5 0.1 s 81.S2
D4: external signal f [Hz]
Disconnection
time
Parameter
Open 49.5…50.5 0.1 s 81.S1
Closed 47.5…51.5 4 s; 1 s 81.S2
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