Bender ISOMETER iso1685DP-425 Manual page 14

4.2 Connections
14
A, B, S
RS-485 bus
connection (A,B)
protocol: BMS
CAN 1
S= PE potential
CAN 2
Connect one end of
No function
shield
CAN 1 RS-485
CAN 2
Term.
I2+ I2- I1+ I1- off on A B S
I2+ I2- I1+ I1-
A B S
I2+
RS-485 Term.
I2– off
I1+ on
I1–
Digital inputs
L2/L-
Coupling terminal L2/–.
Connection to L2/– of the IT system
via 1 A fuse
31, 32, 34
Relay output for 11, 12, 14
internal Relay output for
device errors alarm insulation
(SERVICE LED) fault
K3 K2 K1
k l kT IT 31 32 34 21 22 24 11 12 14
k I kT IT 31 32 34 21 22 24 11 12 14
K 21, 22, 24
I Relay output for alarm
kT insulation fault
IT
No function
L1/L+
Coupling terminal L1/+.
Connection to L1/+ of the IT system
via 1 A fuses
A1, A2
Supply voltage U DC 24 V
s
Arbitrary polarity
Connection via fuses, 6 A each
E KE A1 A2
E KE A1 A2
E, KE
Separate connection of E (earth) and
KE (reference) to PE.
Connect both to PE
isoxx1685Dx-x25_D00272_05_M_XXEN/04.2018