Electrical Connection; Terminal Connection - IFM Electronic efector 300 VS 0200 Notice D'utilisation

E
LECTRICAL CONNECTION

4. Electrical connection

The unit must only be connected by an electrician.
The national and international regulations for the installation of electrical
equipment must be observed.
Avoid contact with voltages.
Disconnect the plant from power before wiring. Check if the relays are
connected to voltages of external power supplies.
Observe the usual ESD protection measures.
In order to avoid malfunction caused by interference, lay the sensor cable
separately from the load cable. Max. length of the sensor cable: 100m.

Terminal connection:

1
2
3
2 WH
4
3 BU
5
1 BN
6
4 BK
7
5 GY
8
Power supply (Power)
Terminal 15: L1 (AC unit) / L+ (DC unit)
Terminal 16: N (AC unit) / L- (DC unit)
For DC units the supply voltage must be protected externally (max. 2 A).
The terminals of the DC supply are directly linked with the terminals of the
sensor supply. This is why the SELV criteria must be adhered to for DC supply
(protective low voltage, circuit galvanically separated from other circuits, not
earthed).
If the DC circuit is to be earthed (e.g. because of national regulations), the PELV
criteria have to be adhered to (protective low voltage, circuit galvanically sepa-
rated from other circuits).
If the unit is supplied with AC voltage, the low voltage supply for the sensors
meets the SELV criteria.
Connection of sensors
Please also adhere to the SELV criteria for the sensor connection so that there
is no dangerous contact voltage at the sensor which can enter the unit!
page 12
9
R2
10
11
12
13 R1
14
15 L1 L+
AC DC
N L-
16
Core colours:
BN = brown, BU = blue, BK = black,
WH = white, GY = grey
R1 = relay "flow monitoring"
R2 = relay "wire monitoring" or
"temperature monitoring"
(optional)