Connecting The Auto-Transformer Mains Cable; Follow-Up Inspections - Fronius MW 2500 Operating Instructions Manual

Connecting the
auto-transfor-
mer mains cable

Connecting the auto-transformer mains cable

phase conductor
Follow-up in-
1
spections
2
Danger from the mains voltage and the autotransformer output voltage.
An electric shock can be fatal.
▶
Danger from incorrect operation and work that is not carried out properly.
This can result in serious personal injury and damage to property.
▶
▶
▶
3
4
5
6
7
8
22
PE
1
L1
2
Power source
L2
3
L3
4
L1
5
L2
6
Mains
L3
7
PE
8
Check that the phase conductor and earth conductor from the power source
connecting cable are securely in place on the clamping strips and check for
correct connection.
Check the insulation and PE conductor using a suitable device
WARNING!
Testing of the mains voltage and output voltage from the auto-transformer is
carried out while the device is switched on. Never touch the auto-transfor-
mer or any of its parts while it is connected to the mains.
WARNING!
All the work and functions described in this document must only be carried
out by technically trained and qualified personnel.
Read and understand this document in full.
Read and understand all safety rules and user documentation for this device
and all system components.
Plug the mains plug in and connect the mains supply
Using a suitable device, test the mains voltage at the clamping strips „INPUT
50/60 Hz"
Turn the main device switch to the „I" position
Using a suitable device, test the output voltage at the clamping strips"OUT-
PUT 50/ 60 Hz"
Turn the main device switch to the „O" position
Unplug the mains plug
NOTE!
Operating the autotransformer with
phase conductors only partially clam-
ped can cause serious damage. When
connecting the auto-transformer con-
nection cable, always make sure that
all phase conductors and the earth
conductor (PE green) are clamped. In-
correct connection can permanently
damage the device.
Connect phase conductors and
1
earth conductors (PE green) to the
mains terminals „INPUT 600/575
V, 50/60 Hz