19
To be removed part
4.4.2 Cable connection procedure
WARNING!!! All connections of the UPS must be done by a qualified service personal.
After positioning the UPS, the cables must be connected as described below:
1. Verify all switches of the UPS in
“0”
position.
2. Connect the AC input coming from the mains distribution panel to the input terminals in correct phase se-
quence.
WARNING!!! Make sure phase order is correct.
If there is any incorrect connection in the phase sequence, the UPS will not run. In this case the
phase sequence must be corrected.
If A21 ROTATE PHASE, message appears on the LCD panel, change the phase sequence.
3. Connect the output of the UPS to the load distribution panel.
4. Connect the battery group, refer to battery installation section.
WARNING: DO NOT TURN ON THE BATTERY FUSE (F1) BEFORE STARTING THE UPS
5. Connect the copper earth bus, which is under the safety earth and the cables power connection.
Note:
The earth and the neutral connections must be in accordance to the local Rules.
4.4.3 Description of connection terminals of the UPS :
Figure-6 Standard connection
Figure-7 Split (external) by-pass source connection
For Split bypass,
a.
Remove the connection between K2 and K3 as shown in figure 7.
b.
Connect the phase and neutral from by-pass source to K2 and K4 terminals.
c.
Connect 3 phase input power cable to U1-V1-W1 terminals.
