Bender LINETRAXX VMD461, Manual

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Technical data VMD461
74 VMD461_D00314_01_M_XXEN/10.2018
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
t
start-up
......................................................................................................200 ms…60 min (200 ms)*
Switch-on delay
t
on
.................................................................................................... off, 50 ms…60 min (100 ms)*
Response delay
t
off
....................................................................................................... off, 50 ms…60 min (100 ms)*
Operating time voltage
t
ae
............................................................................................................. half a supply period
Operating time, frequency
t
ae
.......................................................................................................................... ≤ 40 ms
Recovery time
t
b
.................................................................................................................................................. 300 ms
Digital inputs
Monitoring of potential-free contacts or voltage inputs: ....................................closed = low; 0…4 V;
I
in
< –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
Displays, 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*)
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) ............................... min. 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)*