Control Wiring; Control Terminal Types - Danfoss VLT FC 102 Operating Instructions Manual

Electrical Installation
3. Ground the cable in accordance with grounding
instructions provided in 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 OFF to avoid damage to
the intermediate circuit and to reduce earth
capacity currents in accordance with IEC 61800-3.
4 4
Illustration 4.9 Connecting to AC Mains

4.8 Control Wiring

•
Isolate control wiring from 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.
16
®
VLT HVAC Drive Operating Instructions

4.8.1 Control Terminal Types

Illustration 4.10 shows the removable frequency converter
connectors. Terminal functions and default settings are
summarised in Table 4.3.
Illustration 4.10 Control Terminal Locations
Illustration 4.11 Terminal Numbers
•
•
•
•
MG11AJ02 - Rev. 2013-07-31
1
12 13 18 19 27 29 32 33 20 37
2 3
61 68 69 39 42 50 53 54 55
Connector 1 provides four programmable digital
inputs terminals, two additional digital terminals
programmable as either input or output, a 24 V
DC terminal supply voltage, and a common for
optional customer supplied 24 V DC voltage.
Connector 2 terminals (+)68 and (-)69 are for an
RS-485 serial communications connection
Connector 3 provides two analog inputs, one
analog output, 10 V DC supply voltage, and
commons for the inputs and output
Connector 4 is a USB port available for use with
the MCT 10 Set-up Software
4
1