Bender ISOMETER isoPV1685RTU, Manual, Page: 17 / 36

Installation and connection Installation and connection
isoPV1685xxx_D00007_05_M_XXEN/02.2020
17
5.2.2 Wiring diagram
Connect the device with the help of the connection and terminal diagram. Use the adja-
cent legend.
ISOMETER
®
iso1685
U
S
6A
31 32 34 11 12 14 21 22 24
6A
1A
1A
BMS-/ Modbus-Master
2
PE
I2+ I2- I1+ I1-
k I kT IT
+
–
A1 A2 E KE
L2/- L1/+
A B S
K1 K3 K2
CAN1 CAN2
RS485 Term.
PGH ON
SERVICE
ALARM 2
ISOMETER
®
isoPV1685
ON
ALARM 1
PGH ON
ALARM 3 (I
∆
n)
Terminal,
Socket
Connections
I2+, I2–
Currently has no function, digital input.
I1+, I1–
Digital input
isoPV1685P: Starting the insulation fault location in the manual mode
CAN2
CAN1
Connection to CAN bus, 2 x RJ-45, can be terminated with CAN 120-Ω
termination plug.
A, B, S
Connection to Modbus or BMS bus, RS-485,
S= shield (connect one end to PE), can be terminated with terminating
switch RS-485 Term.
k, l/kT, lT
no function
31, 32, 34
Alarm relay K3 for internal device errors.
21, 22, 24
Description of relay assignment according to device type, see Page 10 ;
Alarm relay K2 for insulation faults.
11, 12, 14
Alarm relay K1 for insulation faults.
E, KE
Separate connection of E and KE to PE.
A1, A2
Connection to U
s
= DC 24 V via fuses, 6 A each.
L+
Connection to L+ of the PV generator via 1 A fuse.
L–
Connection to L– of the PV generator via 1 A fuse.