Manual ELW 170 / ELW 180
May 2020
page 4
6.2.2 Sensor connection
The sensor cable carries a DC voltage of 24 V and two serial
signals should therefore be routed using the shortest path possible.
In the version for duct mounting, the sensor is permanentlyintegrated
in the housing ex factory and connected to the control unit. There is
no need for the user to make any connections.
In the version for wall mounting, when routing the cable, try to avoid
proximity to larger electrical machines and switching elements which
cause stray fields, switching pulses and inductions. The maximum
permitted sensor cable length is 30 m.
Ensure that the four cables are connected correctly so that the
Sensor or control electronics are not damaged.
6.2.3 Connecting the switching
The ELW 170 / 180 is fitted with two petential-free relay outputs
which can be interconnected as make or break contacts depending
on use (two-way contact).
Refer to technical data for switching capacity. The consumer should
be fused in accordance with the specified standards and directives.
All work associated with the terminals may only be undertaken when
de-energised.
7. Operating functions and elements
Parameters for the device functions are set using controls in the control device.
A small screwdriver is needed to operate the speed controller.
