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In order to avoid potential equalizing currents in the
shield, the cable shield can be grounded via terminal
61, which is connected to the frame via an RC link.
Bus termination
The bus must be terminated by a resistor network at
both ends. For this purpose, set switches 2 and 3 on
the control card for "ON".
DIP 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 potential
for the internal 24 V DC supply from the common po-
tential of the external 24 V DC supply.
NOTE
Please note that when switch 4 is in the
"OFF" position, the external 24 V DC sup-
ply is galvanically isolated from the ad-
justable frequency drive.
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 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 VLT frequency
converter is connected to a bus,
switches 2 and 3 (switches 1- 4)
must be closed on the first and the
VLT
®
5000 Series
MG.51.C5.22 - VLT
p
is a registered Danfoss trademark.
65
Installation
Содержание VLT 5000 Series
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Страница 45: ...Mechanical dimensions cont VLT 5000 Series 42 MG 51 C5 22 VLT p is a registered Danfoss trademark ...
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Страница 186: ...VLT 5000 Series MG 51 C5 22 VLT p is a registered Danfoss trademark 183 EC EMC ...
Страница 196: ...RELATIVE VLT 5000 Series MG 51 C5 22 VLT p is a registered Danfoss trademark 193 List of functions ...
Страница 197: ...EXTERNAL PRESET VLT 5000 Series 194 MG 51 C5 22 VLT p is a registered Danfoss trademark ...
Страница 198: ...References VLT 5000 Series MG 51 C5 22 VLT p is a registered Danfoss trademark 195 List of functions ...
Страница 202: ...VLT 5000 Series MG 51 C5 22 VLT p is a registered Danfoss trademark 199 List of functions ...
Страница 217: ...VLT 5000 Series 214 MG 51 C5 22 VLT p is a registered Danfoss trademark ...
Страница 238: ...Rev 2006 12 12 www danfoss com drives 175R5271 MG51C522 MG51C522 MG51C522 VLT 5000 Instruction Manual ...
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