Subject to modifications
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LINCOLN GmbH • Postfach 1263 • D-69183 Walldorf • Tel +49 (6227) 33-0 • Fax +49 (6227) 33-259
User Manual
Operating Instructions
2.1EN-38016-C09
Maintenance and Repair
Electrical Connection
WARNING!
Before maintenance or repair of pumps
switch off their power supply.
Consider the safety instructions (page 5
and 6)!
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CAUTION!
Before starting, make sur e that the general
power supply is off. The device must never
be connected or disconnected when the
power is on. The protective conductor must
always be c onnec ted. Take care that this
line section is undamaged and conform s to
standards and the contacts are safe.
6001a 02
NOTE
The protection IP6K9K is guaranteed when
the socket ( X1:, X2: & X3:) is tightened on
the housing cover with flat packing.
NOTE
Consider the contact protection measures
for c onnecting the high- or low-level control
(see chapter “Mode of Operation” / para-
graph „Low- or High-level Control”).
Make s ure of the connection and the type of construc tion
of your QLS 401.
- type of connection (VDC / VAC)
- low-level indication
- type of connection plug
- monitoring of metering device via external or internal
cycle switc h
Connect the electrical wires according to the following
electrical connecting diagrams (see chapter „Technical
Data“).
Maintenance, Repair and Tests, continuation
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ATTE NTION!
Control p.c.b. and motor always work with
24 VDC even if the pump is connected to
alter nating current.
Consider residual ripple of max.
5 %
when connecting motor and control p.c .b.
(in relation to the operating voltage acc. to
DIN 41755).
Operation with bayonet plug
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CAUTION!
If the protective-conductor terminal is not
connected or interrupted, dangerous touch
voltages may occur on the equipment!
Protective measures to be applied for appropriate operation
with bayonet plugs :
"Functional extra-low voltage with safe is olation" /
"Protective Extra-Low Voltage" (PELV)
Standards :
EN60204 Part1:1992 / IEC 204-1:1992, modified
DIN VDE 0100 Part 410 / IEC 364-4-41:1992
