5.7.6.7 Motor Heater Control
Table 39: Auxiliary Function Option Codes
Character posi-
tion
Option
code
Description
23–24 A4 Motor heater control
AC AC socket + cabinet light + motor heater control
AF AC socket + cabinet light + extended I/O terminals + motor heater control
AH AC socket + cabinet light + extended I/O terminals + cabinet heater + motor heater control
AJ AC socket + cabinet light + extended I/O terminals + motor heater control + insulation monitor
AK AC socket + cabinet light + extended I/O terminals + cabinet heater + motor heater control + insu-
lation monitor
AL AC socket + cabinet light + cabinet heater + motor heater control
AN AC socket + cabinet light + cabinet heater + motor heater control + insulation monitor
AO AC socket + cabinet light + motor heater control + insulation monitor
AQ Extended I/O terminals + motor heater control
AS Extended I/O terminals + cabinet heater + motor heater control
AU Extended I/O terminals + cabinet heater + motor heater control + insulation monitor
AV Extended I/O terminals + motor heater control + insulation monitor
AW Cabinet heater + motor heater control
AY Cabinet heater + motor heater control + insulation monitor
AZ Motor heater control + insulation monitor
The motor heater option provides the ability to control the supply for the motor anti-condensation heater. The 24 V DC external supply
is connected to terminal -XD1.1 in the lower part of the cabinet. When the drive is not in run state, the control relay +QAM changes the
external supply to the -XDN output terminals. When the drive is in run state, the control relay disconnects the external supply to the
motor heater. The function is disabled when MCB –FCN is open.
Illustration 47: Motor Heater Control (Heater Element not Included)
Electrical Installation
Operating Guide | VLT® AQUA Drive FC 202
AQ262141056213en-000101 / 130R0882 | 77
Danfoss A/S © 2018.10
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