Lanze – Lenze 490 Series Speed controllers tor DC motors User Manual

Page 7

RKI2/fa

cba~e4:

03.11.891

Installation instructions

4.1

When installing in an enclosure,

ensure adequate

ventilation.

The ambient temperature inust not exceed

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.

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 ~

(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

and terminal E to terminal5j.

See chapter 3 connecting diagram.

Zero speed results,

when

the set value potentiometer n

5011

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