Kendrion Kuhnke Automation GmbH
Construction and Functionality
Econo
39
5.2 Electrical Installation
The connectors are located at the front of Econo as described in section Connectors of Econo.
Proceed in the order below to wire up Econo:
turn off the unit,
unplug the unit from the mains/power supply,
attach all cables to Econo and any peripheral units,
check that all cables are firmly attached at both (female and male) ends,
reconnect all units with the mains/power supply.
5.2.1 Operative Earth
Operative earth is not a safeguard but a means of improving the immunity to noise. It is solely intended to
dissipate noise current but not to protect persons from contact.
The unit's operative earth has 2 connectors: Either one of the 6.3 mm x 0.8 mm blade connectors or the
earth bolt at the back of the unit.
Take heed of the following points to ensure that noise currents are safely dissipated:
Try to keep a very short distance between the unit and the central earth bonding point on the control
cabinet.
Check that the cable/earth conductor diameter is 2.5 mm² or greater
Take heed of the specified conductor shielding; check that all data link cables attached to the unit have
shielded wires and attach to the unit's earthing terminals.
Information
Earth wires should be short and have a large surface (copper mesh). Refer to
http://de.wikipedia.org/wiki/ground_(electronics)
or a similar source for further details.
5.2.2 System Power Supply
Terminals L+ and L- of connector X9 are used to supply power to Econo. The wires should have a cross
section of 0.75 mm
2
to 2.5 mm
2
and a connector sleeve. Connect the wires to the terminals and tighten the
screw-type terminals using a screwdriver.
Check the pin wiring specified for the unit's power supply connector when wiring up the unit.
CAUTION
Damage to the unit due to supplying excessive or the wrong power
Wrong voltage or wrong polarity of the connectors may destroy the unit.
Please refer to the pin wiring shown on the unit.
I/O power supply fusing
The cord must have external protection against short circuit and overload triggering at max. 10 A, min. 60 V.
