Helios easyControls KWL-EM, Operating Instructions Manual, Page: 35 / 92

Extension module
KWL-EM
for easyControls
Operating Instructions
3
CHAPTER 2
CONNECTION
2.0 Connection and control board
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The safety instructions in section 1.2 must be observed!
Functions:
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Jumper 1 = Switch 230/400V (see wiring diagram SS-1069)
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Jumper 2 = Terminating resistor
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Jumper 3 = External power supply for easyControls bus
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DIP-switch 2 = 1 - WW 0 - EH
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DIP-switch 1 = 0 - Pre-heater 1 - Auxiliary heater
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RJ 10 (digital) = Connector sockets for control cable (4 x 0,5² with connector
RJ10) to KWL unit and other accessory components
Description of the jumpers and DIP switch:
Jumper 1:
When using an electric pre-heater or –auxiliary with 230 V, the connecti-
on must not be active (jumper disconnected). When controlling an auxiliary
heater battery with 400 V, the connection will be activated (jumper con-
nected). The power supply (0-10 V) is available at terminals 16+17 for the
power control of the auxiliary heater battery.
Jumper 2: If the KWL-EM is the last element connected in the easyControls bus,
the connection must be activated. (connect jumper to both contacts).
Jumper 3: Power supply for the easyControls bus via bus cable (default) or external
(via terminals 13+14). In case of an external power supply, the connection must be re-
configured (connect jumper to „Mid+Ext“ contacts)
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WARNING
EN
Fig.2
Jumper
Fig.1
Terminal block 230V
Terminal block low voltage
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ù
ò
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ö
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