CIPer
TM
MODEL 50 CONTROLLER
–
INSTALLATION AND COMMISSIONING INSTRUCTIONS
33
31-00233-02
Power Supply
Powering CIPer Model 50
Power is supplied via a removable terminal plug (attached to terminals 1 and 2).
The power supply of the CIPer Model 50 controller must conform to Safety Class II. To reduce overall current
consumption, the CIPer Model 50 can be powered by a switch power supply (rather than by a transformer).
See also Table 2.
NOTE
Due to the risk of short-circuiting (see Figure 24), it is strongly recommended that the CIPer
Model 50 controller be supplied with power from a dedicated transformer. However, if the
CIPer Model 50 controller is to be supplied by the same transformer powering other
controllers or devices (e.g., the PW M-Bus Adapter), care must be taken to ensure that correct
polarity is observed.
Figure 24: Incorrect polarity
→
SHORT-CIRCUITING!
24 V
~
24 V~0
LINE
L
N
CPU 1
CPU 2
NOISE-FREE EARTH GROUND
(ONLY ONE PER SYSTEM)
N, L
EARTH GROUND
USB 2.0
Device Interface
!
REVERSED
POLARITY!
PC 1
PC 2
2
2
1
1
24V~
24V~
24V~0
24V~0
SHORT-CIRCUITING!