e
7
7
h
a
5
1
2
.1
2
3
2
1
70
60
50
30
10
40
20
80
90
100
0
%
A
va
ila
b
le
t
o
rq
u
e
Illustration 40: Available Torque in Jog Operation
1
Motor FLT
2
Jog forward maximum torque
3
Jog reverse 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
.
N O T I C E
When connected in inside delta, the soft starter does not detect phase loss on T2 during run.
N O T I C E
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.
AQ262141844215en-000401 / 175R1174
72 | Danfoss A/S © 2020.12
Operation
VLT® Soft Starter MCD 600
Operating Guide