Danfoss VLT AutomationDrive FC 360 Quick Manual page 21

Electrical Installation
Terminal Parameter
Parameter group
53 6-1* Analog Input
53
Parameter group
54 6-2* Analog Input
54
55 –
Serial communication
61 –
Parameter group
68 (+) 8-3* FC Port
Settings
Parameter group
69 (-) 8-3* FC Port
Settings
Relays
01, 02, 03 5-40 [0]
04, 05, 06 5–40 [1]
Table 4.1 Terminal Descriptions
Control terminal functions
Frequency converter functions are commanded by
receiving control input signals.
•
Program each terminal for the function it
supports in the parameters associated with that
terminal.
•
Confirm that the control terminal is programmed
for the correct function. See chapter 5 Commis-
sioning for details on accessing parameters and
programming.
MG06A702
Quick Guide
Default
Description
setting
–
Analog input.
Selectable for
voltage or
current.
–
Common for
–
analog input
Integrated RC-
filter for cable
shield. ONLY for
– connecting the
shield when
experiencing
EMC problems.
RS485 interface.
–
A control card
switch is
provided for
termination
–
resistance.
Form C relay
output. These
relays are in
various locations
[9] Alarm
depending on
the frequency
converter config-
uration and size.
Usable for AC or
DC voltage and
resistive or
inductive loads.
[5] Running
RO2 in J1–J3
enclosure is 2-
pole, only
terminals 04 and
05 are available
Danfoss A/S © 03/2017 All rights reserved.
•
The default terminal programming initiates
frequency converter functioning in a typical
operational mode.
Using shielded control cables
The preferred method in most cases is to secure control
and serial communication cables with shielding clamps
provided at both ends to ensure the best possible high
frequency cable contact.
If the ground potential between the frequency converter
and the PLC is different, electric noise could disturb the
entire system. Solve this problem by fitting an equalizing
cable as close as possible to the control cable. Minimum
2
cable cross-section: 16 mm (6 AWG).
PLC
PE
PE
1
2
1
2
Minimum 16 mm (6 AWG)
2 Equalizing cable
Illustration 4.8 Shielding Clamps at Both Ends
50/60 Hz ground loops
With long control cables, ground loops could occur. To
eliminate ground loops, connect 1 end of the shield to the
ground with a 100 nF capacitor (keeping leads short).
PLC
PE
100nF
Illustration 4.9 Connection with a 100 nF Capacitor
Avoid EMC noise on serial communication
This terminal is connected to ground via an internal RC
link. Use twisted-pair cables to reduce interference
between conductors. The recommended method is shown
in Illustration 4.10.
FC
69
68
61
PE
PE
2
1
2
Minimum 16 mm (6 AWG)
2 Equalizing cable
Illustration 4.10 Twisted-pair Cables
Alternatively, the connection to terminal 61 can be
omitted.
FC
PE <10 mm
PE
FC
PE <10 mm
FC
69
68
61
PE <10 mm
PE
1
19
4 4