8
Installation and Operating Manual
IP227, Rev DA
Mobrey MCU200 Series
February 2020
Figure 4. PCB for MCU201
Supply connection
The AC mains supply is connected to the “N” terminal for neutral and one of the “115V”
or “230V” terminals (depending on the voltage supply available).
The terminal not connected externally will be “live” once the transformer is
powered via the other terminals
.
PE (Protective Earth) connection
The protective earth must be used in all applications.
DPCO (Double-Pole-Change-Over) relay connections
There are two sets of contacts:
If the relay is connected to hazardous live (mains) circuits:
External circuits (e.g. signal circuits) with accessible parts, or only basic
insulation, must not be connected to the relay.
Set 1:
NC1
Normally closed
C1
Common
NO1
Normally open
Set 2:
NC2
Normally closed
C1
Common
NO2
Normally open
3
NC1
C1
NO1
NO2
C2
NC2
N 115V 230V
4
E 2
1 E
AUX.
INPUT
SENSOR
0.5 s
30 s
2 s
DELAY
CABLE
CHECK
HI
LO
E = GREEN
E = RED
DELAY TO NE
DELAY TO E
OSC. = E
OSC. = NE
8 s
2
MIN
MAX
4
8
10
5
7
6
3
9
IN
FREQ
OUT
1.0
3.7
RELAY
DANGER LIVE TERMINALS
SUPPLY
