Bender LINETRAXX VMD461, Руководство пользователя

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Installation and connection
32 VMD461_D00314_01_M_XXEN/10.2018
Legend wiring diagram fig. 4.9
* Explanation: *NC (in non-operating state closed)
NO (in non-operating state open)
off (switched off)
Single-fault safety
The device is designed to be single-fault safe. Coupling and relays as well as
their controls for shutdown are designed redundantly.
In order to ensure single-fault safety in the system to be monitored, two circuit
breakers are connected in series (Q1 and Q2, see Fig. 4.9). They have to be
connected to the digital inputs D1 and D2, each with a positively driven, po-
tential-free contact (DG1/2 is the common ground).
The signalling relays K1 and K2 must be connected as shown in Fig. 4.9 and
have to operate in N/C mode.
Element Function
A1, A2
Supply voltage U
s
(see ordering details)
L1, L2/DC+, L3,
N/DC-
Power supply connection
11, 12, 14 Connection to alarm relay K1
21, 22, 24 Connection to alarm relay K2
Q1, Q2 Circuit breakers
DG1/2,
D1, D2
Contact monitoring circuit breakers Q1/Q2
DG1/2: GND
D1: Feedback signal contact to alarm relay K1
D2: Feedback signal contact to alarm relay K2
(
feedback signal contacts optionally NC/NO/off )*
RTG, RT1
RTG: GND
RT1: Remote-trip input (
optionally NC/NO/off ) *
A, B Connection to communication interface BMS bus
R
on/off
Activate or deactivate the terminating resistor of the BMS
bus (120
Ω
)