Mounting On The Floor; Electrical Connection; Electrical Protection - Grundfos CUE Series Installation And Operating Instructions Manual

5.4 Mounting on the floor

WARNING
Crushing of feet
Death or serious personal injury
- CUE is very heavy and may fall if the pedestal is
not anchored to the floor.
The user is responsible for mounting CUE securely
on a firm surface.
See the pedestal-kit instructions for further
information.
By means of a pedestal (optional), CUE can also be mounted on
the floor.
1. Mark the mounting holes on the floor. See fig. 6.
2. Drill the holes.
3. Mount the pedestal on the floor.
4. Mount CUE on the pedestal using the enclosed screws.
1
Fig. 6 Drilling template for pedestal
D1h
Pos.
[mm]
1 400
2 325
3 283.8
4 240
5 4 x 14
6 217
6
2
3
4
5
6
D2h
[mm]
400
420
378.8
240
4 x 14
317

6. Electrical connection

WARNING
Electric shock
Death or serious personal injury
- Before starting any work on the product, make
sure that the power supply has been switched off
and that it cannot be accidentally switched on. See
4. Installation requirements.
- Touching the electrical parts may be fatal, even
after CUE has been switched off.
The owner or installer is responsible for ensuring
correct earthing and protection according to local
standards.
For products with STO, ensure short-circuit
protection of the cable between terminal 37 and the
external safety device.
Security measures are the responsibility of the user.
The frequency converter parameters can be
password protected.
ELCB
Fig. 7 Example of three-phase mains connection of CUE with
main switch, backup fuses and additional protection

6.1 Electrical protection

6.1.1 Protection against electric shock, indirect contact
CAUTION
Electric shock
Minor or moderate personal injury
- CUE must be earthed correctly and protected
against indirect contact according to local
regulations.
The leakage current to protective earth exceeds 3.5
mA, and a reinforced earth connection is required.
Protective conductors must always have a yellow and green (PE)
or yellow, green and blue (PEN) colour marking.
Instructions according to EN IEC 61800-5-1:
• CUE must be stationary, installed permanently and connected
permanently to the mains supply.
• The protective earth connection must be carried out with
duplicate protective conductors or with a single reinforced
protective conductor with a cross-section of minimum 10 mm
2
.