Electrical installation - control cables
All terminals for the control cables are located under
the protective cover of the frequency converter. The
protective cover (see drawing) can be removed by
means of a pointed object - a screwdriver or similar.
Once the protective cover has been removed, the ac-
tual EMC-correct installation can start. See drawings
in the section, EMC correct installation.
Tightening-up torque: 0.5-0.6 Nm
Screw size: M3
See section earthing of braided screened/armoured
control cables.
No. Function
12, 13 Voltage supply to digital inputs For
the 24 V DC to be usable for the
digital inputs, switch 4 on the con-
trol card must be closed. position
"ON".
16-33 Digital inputs/encoder inputs
20 Ground for digital inputs
39 Ground for analogue/digital outputs
42, 45 Analogue/digital outputs for indicat-
ing frequency, reference, current
and torque
50 Supply voltage to potentiometer
and thermistor 10 V DC
53, 54 Analogue reference input, voltage
0 - ±10 V
55 Ground for analogue reference in-
puts
60 Analogue reference input, current
0/4-20 mA
61 Termination for serial communica-
tion. See section Bus connection.
This terminal is normally not to be
used.
68, 69 RS 485 interface, serial communi-
cation. Where the frequency con-
verter is connected to a bus,
switches 2 and 3 (switches 1- 4)
must be closed on the first and the
last frequency converter. On the re-
maining frequency converters,
switches 2 and 3 must be open.
The factory setting is closed (posi-
tion “ON”).
VLT
®
5000 Design Guide
74 MG.52.B2.02 - VLT
®
is a registered Danfoss trademark