GEA ARIETE, Инструкция по эксплуатации и техническому обслуживанию

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VLT
®
5000 Series
■
Switches 1-4
The dipswitch is located on the control card.
It is used for serial communication, terminals 68 and
69.
The switching position shown is the factory setting.
Switch 1 has no function.
Switches 2 and 3 are used for terminating an RS
485 interface, serial communication.
Switch 4 is used for separating the common poten-
tial for the internal 24 V DC supply from the common
potential of the external 24 V DC supply.
NB!:
Please note that when Switch 4 is in position
"OFF", the external 24 V DC supply is galvan-
ically isolated from the VLT frequency converter.
■
Installation of control cables
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 control card must be closed.
position "ON".
16-33 Digital inputs/encoder inputs
20 Ground for digital inputs
39 Ground for analogue/digital out-
puts
42, 45 Analogue/digital outputs for indi-
cating frequency, reference,
current and torque
50 Supply voltage to potentiometer
and thermistor 10 V DC
53, 54 Analogue reference input, volt-
age 0 - ±10 V
55 Ground for analogue reference
inputs
60 Analogue reference input, cur-
rent 0/4-20 mA
61 Termination for serial communi-
cation. See section
Bus
connection. This terminal is
normally not to be used.
68, 69 RS 485 interface, serial com-
munication. Where the VLT
frequency converter is con-
nected to a bus, switches 2 and
3 (switches 1- 4) must be
closed on the first and the last
VLT frequency converter. On
the remaining VLT frequency
converters, switches 2 and 3
must be open. The factory set-
ting is closed (position “ON”).
MG.51.A1.02 - VLT is a registered Danfoss trade mark
66