Device overview
19
isoxx1685Dx-x25_D00272_07_M_XXEN/09.2022
4.2 Connections
upper graphic
I2+,I2- / I1+, I1- digital Inputs
CAN1
/ CAN2
no function
RS485 Term. off / on RS-485 termination
A, B, S
RS-485 bus connection (A,B) Protocol: BMS
S= PE potential Connect one end of shield
k, I, kT, IT no function
31, 32, 34 Relay output for internal device errors (LED SERVICE)
21, 22, 24 Relay output for alarm 2 insulation faults
11, 12, 14 Relay output for alarm 1 insulation faults
E / KE
Separate connection of E (earth) and KE (reference) to PE.
Connect both to PE
A1, A2
Supply voltage U
s
DC 24 V Arbitrary polarity
Connection via fuses, 2 A each
lower graphic
L1/+ Connection to L1/+ of the IT system via 1 A fuse
L2/- Connection to L2/- of the IT system via 1 A fuse
I2+ I2- I1+ I1-
I2+ I2- I1+ I1-
CAN 1
CAN 2
RS-485
Te rm .
o on
A B S
A B S
k l kT IT
k I kT IT
31 32 34
K3
31 32 34
21 22 24
K2
21 22 24
11 12 14
K1
11 12 14
E K E
E KE
A1 A2
A1 A2
L2/L-
L2/-
L1/L+
L1/+
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