User's Manual

3. Commissioning
Page 30 MF0145ASA.docx User’s Manual for ION
®
-M7HP/85HP EU
With the mains power turned off, the power supply plug must be connected to the
unit’s Mains connector. The Mains connector’s arrow tip and the power supply plug’s
arrow tip must point to each other as shown in the figure below.
figure 3-13 Power supply plug to RU Mains connector
3.2.8.2. DC Power Connection
The DC Box and the RU are already connected. For DC connection, connect your
local supply to the DC Box.
 Note: For DC power supply connection, a minimum cross section of 6.6 mm²
(≥ AWG 9) per potential is required. To ensure watertightness of the cable
gland, a minimum cross section of 9 mm² is necessary for the local supply
cable. Each wire must observe the applicable national regulations
regarding loop impedance, voltage drop, and methods of installation.
Make sure to connect the correct voltage to the unit.
 Note: Do not connect or disconnect the local supply cable at the DC Box while
power is on. Turn off mains power before connecting the local supply
cable, then, engage mains again.
 Note: Mains power must be interruptible with an external mains breaker. For the
mains breaker, observe the local regulations of the DC service provider.
First, remove the cover of the box by unscrewing the four screws:
Power supply
plug
Mains connector at the
RU (as shown in figure
3-12
)
Arrow tips must point to
each othe
r
Unscrew to
remove cover
(torque: 1.45 N-m)