Lanze – Lenze 490 Series Speed controllers tor DC motors User Manual
Page 7
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4.
Installation instructions
4.1
When installing in an enclosure,
ensure adequate
ventilation.
The ambient temperature inust not exceed
45
0C.
Install the controller vertically with the terminals
at the top. Ensure that there is adequate ventilation.
Observe power losses.
See
12.3.
4.2
When the switch RFR is closed,
the controller is released.
4.3
Connect the potentiometer case to ground (PE).
4.4.
Replace defective fuses only by the specified type.
5.
Connecting instructions
5.1
Control cables must be screened. Connect screen at one side
of the controller with PE.
5.2
The control electronics carries mains potential when using
arinature voltage feedback with IxR coiupensation.
5.3
Before switching off the mains,
the motor must have come
to standstill by opening the switch RFR or actuating the
quick stop.
For automatic mains switch—off,
see 9,
terminal
~.
5.4
Two—cruadrant operation.
If only one motor direction is
required, e.g. clockwise rotation, terminal E of the set
value potentiometer is to be connected to terminal ~
or
(in case of anticlockwise rotation to terminals)
and
terminal A to terininal
~.
See chapter 3 connecting diagram.
5.5
Four—cruadrant operation.
If both motor directions are
required, terminal A of tj~
set value potentiometer is to
be connected to terminal
LJ
and terminal E to terminal5j.
See chapter 3 connecting diagram.
Zero speed results,
when
the set value potentiometer n
5011
<nset)
is in the middle
position.
5.6
Separate supply of power stage and control electronics.
Caution:
In case of separate supply of power stage and
control electronics, ensure a correct phase connection
betweeen power stage and control electronics.
5.6.1
Switch on control electronics and power stage at the
same time (standard application).
5.6.2
When switching on control electronics and then power
stage,
note:
Caution:
As long as the power stage is without current
the control inhibit must be active,
see chapter 8.4
inching.
Lanze