User Manual

4. Commissioning
Page 38
MF0150A9A Manual for ION-M23 SDARS
4.2.12. Power Connection
Before connecting electrical power to the RU, the system must be grounded as
described in section 4.2.4 Grounding (Earthing).
Mains power must be connected at the mains connector of the unit (see section
4.2.3). The power supply plug with cable is part of the delivery. Depending on the
location / requirements of your site, one of the following cables is provided:
blue
neutral
brown
phase
yellow/green
protection earth
white
neutral
black
phase
green
protection earth
figure 4-14 Power supply cables (AC)
red
+ (volts)
black
- (volts)
figure 4-15 Power supply cable (DC)
Connect the cable ends of the power cable to your local power supply.
 Note: 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 power cord at the mains connector while
power is on. Turn off mains power * before connecting the power cord at
the Remote Unit, then, engage mains again.
* Mains power must be interruptible with an external delay-actions mains breaker. For the mains
breaker, observe the following recommendation:
120 Volt / 20 Amp max. or 240 Volt / 16 Amp, single-phase, 50 / 60 Hz AC service is needed,
i.e. the external AC breaker should be 20 Amps max. for 120-Volt service or 13 to 16 Amps for
240-Volt service. Always make sure that your local requirements are kept.
For the DC power supply, observe the local regulations of the DC service provider.
With the mains power turned off, the power supply plug must be connected to the
Remote Unit’s mains connector.