Finishing The Job - Fronius DC Isolating Box 40/60 Bedienungsanleitung

Connecting up
strings of solar
modules to the
DC isolating box
40/60
(continued)
Fig.14 Connecting up the solar module string-
Fig.15 Fixing the solar module string-cables to the

Finishing the job

1.
2.
3.
4.
NOTE! When connecting up more than two strings:
- First introduce, connect and fix (with strain-relief devices) the strings
nearest the wall;
- then introduce, connect and fix the outside strings.
(+) (+) (+) (-)
2. 2. 2. 2.
3. 3. 3.
cables
(+) (+) (+) (-)
5. 5. 5. 6.
DC isolating box 40/60 using strain relief
devices
After finishing all the connecting-up work, tie all the DC(+) string-cables together
with cable ties
Tie all the DC(-) string-cables together with cable ties
Check whether the DC voltage on the DC isolator is < 530 V
Check the polarity on the main inverter leads
2. Slip strain relief devices over the
(-) (-)
DC(+) and DC(-) string-cables of the
2.
solar modules
2.
3. With the circuits opened, pass all the
DC(+) string-cables of the solar
modules through a separate "M16
4.
solar-module side" screwed conduit
for each cable, and connect the
4. 4.
cables to the DC(+) string
connections in the DC isolating box
40/60
Tightening torque = 0.8 Nm
4. With the circuits opened, pass all the
DC(-) string-cables of the solar
modules through a separate "M16
solar-module side" screwed conduit
for each cable, and connect the
cables to the DC(-) string connections
in the DC isolating box 40/60
Tightening torque = 0.8 Nm
5. Fix the DC(+) string-cables of the
(-) (-)
solar modules to the DC isolating box
40/60, using strain relief devices
6. Fix the DC(-) string-cables of the solar
6.
modules to the DC isolating box 40/
60, using strain relief devices
7. Close the circuits of the solar modules
12