Ac Mains Connection; Control Wiring; Control Terminal Types - Danfoss VLT AQUA FC 202 Operating Instructions Manual

Electrical Installation
4 4
Illustration 4.5 Motor Connection
Illustration 4.6 represents mains input, motor, and earth
grounding for basic frequency converters. Actual configu-
rations vary with unit types and optional equipment.
Illustration 4.6 Example of Motor, Mains and Ground Wiring
16
Operating Instructions

4.7 AC Mains Connection

Procedure

4.8 Control Wiring

4.8.1 Control Terminal Types

Illustration 4.7 and Illustration 4.8 show the removable
frequency converter connectors. Terminal functions and
default settings are summarised in Table 4.2.
- LC -
Illustration 4.7 Control Terminal Locations
Danfoss A/S © Rev. 05/2014 All rights reserved.
•
Size the wiring based upon the input current of
the frequency converter. For maximum wire sizes,
see chapter 8.1 Electrical Data.
•
Comply with local and national electrical codes
for cable sizes.
1. Connect the 3-phase AC input power wiring to
terminals L1, L2, and L3 (see Illustration 4.6).
2. Depending on the configuration of the
equipment, connect the input power to the
mains input terminals or the input disconnect.
3. Ground the cable in accordance with the
grounding instructions provided in
chapter 4.3 Grounding.
4. When supplied from an isolated mains source (IT
mains or floating delta) or TT/TN-S mains with a
grounded leg (grounded delta), ensure that
14-50 RFI Filter is set to [0] Off to avoid damage to
the intermediate circuit and to reduce earth
capacity currents in accordance with IEC 61800-3.
•
Isolate the control wiring from the high power
components in the frequency converter.
•
When the frequency converter is connected to a
thermistor, ensure that the thermistor control
wiring is screened and reinforced/double
insulated. A 24 V DC supply voltage is
recommended.
4
1
MG20MB02