Danfoss VLT AutomationDrive FC 361 Series Design Manual page 44

Electrical Installation Con...
3 If the ground potential between the drive and the PLC is
different, electric noise can occur that disturbs the entire
system. Fit an equalizing cable next to the control cable.
Minimum cable cross-section: 16 mm
4 If long control cables are used, 50/60 Hz ground loops are
possible. Connect 1 end of the shield to ground via a 100
nF capacitor (keeping leads short).
5 When using cables for serial communication, eliminate
low-frequency noise currents between 2 drives by
connecting 1 end of the shield to terminal 61. This
terminal is connected to ground via an internal RC link.
Use twisted-pair cables for reducing the differential mode
interference between the conductors.
Illustration 7.5 Grounding Examples
7.4.1 Control Cable Routing
7 7
Tie down and route all control wires. Remember to
connect the shields in a proper way to ensure optimum
electrical immunity.
•
Isolate control wiring from high-power cables.
•
When the drive is connected to a thermistor,
ensure that the thermistor control wiring is
shielded and reinforced/double insulated. A
24 V DC supply voltage is recommended.
Fieldbus connection
Connections are made to the relevant options on the
control card. See the relevant fieldbus instruction. The
cable must be tied down and routed along with other
control wires inside the unit.
42
VLT® AutomationDrive FC 361
7.4.2 Control Terminals
Illustration 7.6 shows the removable drive connectors.
2 (6 AWG).
Terminal functions and default settings are summarized in
Table 7.2 – Table 7.4.
Illustration 7.6 Control Terminal Locations
1
2
1
2
3
Illustration 7.7 Terminal Numbers Located on the Connectors
Danfoss A/S © 03/2019 All rights reserved.
61 68 69 39 42 50 53 54 55
12 13 18 19 27 29 32 33 20
Serial communication terminals
Digital input/output terminals
Analog input/output terminals
3
MG06K102