IFM Electronic Ecomat200 A 300 Bedienungsanleitung Seite 19

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: 500m.
Terminal connection:
A 300 with switched-mode power supply
signal
input
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
transistor switching
output output
Power supply
Power supply either
• at terminals 15 and 16 (AC/DC; for A 300 with switched-mode power
supply; AC for A 300 with transformer power supply)
• or at terminals 6 and 7 (24 V DC).
For DC units the supply voltage must be protected externally.
The terminals of the DC supply are directly linked with the terminals of the
pulse pick-up 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 pulse
pick-up meets the SELV criteria.
power supply
DC
L1 N (AC)
L+ L- (DC)
power
supply
STANDSTILL MONITOR
A 300 with transformer power supply
signal
input
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
switching
output
A300
power supply
DC
L1 N
power supply
AC
19