LINETRAXX® VMD461 with CD440 coupling device

Multifunctional voltage relay for AC, DC, 3(N)AC systems
Underfrequency 81<U*, overfrequency 81>O*, overvoltage 59*,
undervoltage 27*, phase sequence 47*, unbalance 47*, vector shift 78*,
ROCOF df/dt 81R** ANSI-codes

•	When combined with a CD440 coupling device, DC systems up to 1200 V, 1AC systems up to 690 V, 3AC systems up to 1200 V and 3NAC systems up to 690 V can be monitored
•	All functions are represented in ANSI codes
•	Monitoring of DC, 1AC, 3(N)AC systems DIN EN 60255-1:2010-9
•	Three-phase voltage and frequency monitoring
•	Unbalance, phase failure and phase sequence monitoring
•	Monitoring of the connected switches and/or disconnectors (configurable: NC/NO/off)
•	Islanding detection df/dt (ROCOF)
•	Vector shift function
•	RS-485 interface (data exchange/parameter setting/software update)
•	Test function to determine the switch-off time
•	Test button for the trigger circuit
•	The last 300 network faults can be recalled with time stamp/real-time clock
•	Continuous monitoring of the phase voltage and line-to-line voltage
•	Special switch-on conditions after an infringement of a response value
•	Language selection (German, English, French)
•	Backlit graphic LC display
•	Password protection for device setting
•	Remote shutdown via ripple control signal receiver
•	Sealable enclosure

VMD461-D-2:
Nominal supply voltage Us 100…240 V
Tolerance Us ±25 %
Nominal frequency range Us DC, 50/60 Hz
Power consumption at AC 230 V < 3.5 W/< 7.5 VA
maximum 3.5 W/9 VA

Recording of measurement values, switch-on condition
U<, U<<, U<<< 0…100 %
U>, U>>, U>>> 100…150 %
f<, f<<, f<<< 45…60 Hz
f> , f>>, f>>> 50…65 Hz
Phase sequence/Polarity right, left

Recording of measurement value, switch-off condition
U<, U<<, U<<< 1…100 %
U>, U>>, U>>> 100…150 %
f<, f<<, f<<< 45…60 Hz
f>, f>>, f>>> 50…65 Hz
df/dt 0,05…9,95 Hz/s
Vector shift 1…25 %
Unbalance 1…50 %

Time response
Start-up delay tstart-up 200 ms…60 min (200 ms)
Switch-on delay ton off, 50 ms…60 min (100 ms)
Response delay toff off, 50 ms…60 min (100 ms)
Operating time voltage tae half a supply period
Operating time, frequency tae ≤ 40 ms
Recovery time tb 300 ms

Digital inputs
Monitoring of potential-free contacts or voltage inputs: closed = low; 0…4 V; Iin < -5 mA
open = high; > 6…≤ 30 V
D1 Feedback signal contact of alarm relay K1
D2 Feedback signal contact of alarm relay K2
RT1 remote trip
DG1/2, RTG GND
max. length of the connecting cables of the digital inputs (shielded cable recommended) 10 m
Cable length for external test/reset button 0…10 m

Display, memory
Display LC display, multi-functional, illuminated
Display range, measured value 0…9.99 kV
History memory for the last 300 messages per 1 data record measured values
Password on/off/0…999 (off*)

Environment/EMC
EMV DIN EN 60255-26
Arbeitstemperatur: -25...+55 °C

Switching elements
Number of changeover contacts 2 x 1 (K1, K2)
Operating principle K1, K2 N/C operation or N/O operation (N/C)*
Electrical endurance under rated operating conditions, number of cycles 10,000

Interface
Interface/protocol RS-485/BMS
Baud rate 9.6 kBit/s
Cable length 0…1200 m
Recommended cable (shielded, shield connected to PE on one side) J-Y(St)Y min. 2 x 0.8
Terminating resistor 120 Ω (0.25 W) connectable via DIP switch
Device address, BMS bus 1…90 (2)*

Fabrikat:
Bender GmbH & Co. KG
Londorfer Straße 65
35305 Grünberg

Typ: VMD461-D-2 (Multifunctional voltage relay)
Art. No.: B93010047

Typ: CD440 (Coupling device)
Art. No.: B73010046