-
-
5.7.6.2 Auxiliary Voltage Transformer
Table 57: Auxiliary Supply Type Codes for Auxiliary Voltage Transformer
Character position
Code
Description
21
2
230 V AC internal
4
230 V AC in 24 V DC internal
7
120 V AC internal
8
120 V AC in 24 V DC internal
The auxiliary voltage transformer is an option fitted internally that allows for the supply to be tapped from the mains. For example,
if the enclosed drive is specified with a fused disconnect, the supply for the auxiliary voltage transformer is taken from between the
drive and the fused disconnect. This configuration allows the control voltage to be disconnected with the main switch.
The transformer has multiple tappings on the primary side for the standard range of voltages on which the drive operates. The
factory default wiring connects to the highest voltage tapping on the primary side, and the trip settings for the -FC4 terminal is set
accordingly. The customer can change the tapping provided the correct voltage is applied and the thermal magnetic circuit breaker
is set accordingly.
e
3
0
b
u
1
9
2
.1
0
L1-L2
-FC4
-TA4
2
3
#
-FC6
-XD1
4 A
1
2
Illustration 50: Auxiliary Voltage Transformer Terminals
N O T I C E
AUXILIARY COMPONENT FAILURE
Incorrect voltage or incorrect tapping installation will cause other auxiliary components in the control compartment to fail.
When tapping the transformer, make sure to apply the correct voltage for the drive.
Use the correct tapping and trip settings.
5.7.6.3 +24 V DC External Supply
Table 58: Auxiliary Supply Type Codes
Character position
Code
Description
21
4
230 V AC i24 V DC internal
5
230 V AC e24 V DC internal
8
120 V AC i24 V DC internal
9
120 V AC e24 V DC internal
The 24 V DC external supply option enables other auxiliary options to be connected to a 24 V DC supply within the control compart-
ment.
AQ262139143212en-000301 / 130R0879
92 | Danfoss A/S © 2021.10
Electrical Installation
VLT® AutomationDrive FC 302
Operating Guide
Summary of Contents for D9h
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