Inside Delta Operation; Secondary Motor Set - Danfoss VLT MCD 600 Operating Manual

VLT® Soft Starter MCD 600
Operating Guide
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Illustration 40: Available Torque in Jog Operation
1 Motor FLT
2 Jog forward maximum torque

9.13 Inside Delta Operation

When connecting in inside delta, enter the value of the FLC in parameter 1-2 Motor Full Load Current. The soft starter automatically
detects whether the motor is connected in-line or inside delta and calculates the correct inside delta current level.
Adaptive control, jog, brake, and PowerThrough functions are not supported with inside delta (6-wire) operation. If these functions
are programmed when the soft starter is connected inside delta, the behavior is given as below.
Adaptive control start The soft starter performs a constant current start.
Adaptive control stop
The soft starter performs a TVR soft stop if parameter 2-10 Stop Time is >0 s. If parameter 2-10 Stop Time is
set to 0 s, the soft starter performs a coast to stop.
Jog The soft starter issues a warning with the error message Unsupported option.
DC brake The soft starter performs a coast to stop.
Soft brake The soft starter performs a coast to stop.
PowerThrough
The soft starter trips with the error message Lx-Tx Shorted.
When connected in inside delta, the soft starter does not detect phase loss on T2 during run.
If the soft starter is not correctly detecting the motor connection, use parameter 20-6 Motor Connection.

9.14 Secondary Motor Set

The soft starter can be programmed with 2 separate starting and stopping profiles. This allows the soft starter to control the motor
in 2 different starting and stopping configurations. The secondary motor set is ideal for dual winding (Dahlander) motors, multi-
motor applications, or situations where the motor may start in 2 different conditions (such as loaded and unloaded conveyors). The
secondary motor set can also be used for duty/standby applications.
72 | Danfoss A/S © 2020.12
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3 Jog reverse maximum torque
AQ262141844215en-000401 / 175R1174
Operation