ABB PSTX Series Installation And Commissioning Manual page 89

7.12 Sequence start
The Softstarter can start up to 3 different motors
sequentially, sequence 1, 2 and 3. This is suitable when
setting up the Softstarter with different applications.
Select the parameter set through input signal to the
Softstarter.
Parameter settings and physical connections for
programmable inputs must agree.
WARNING
EOL does not work during Sequence start.
Recommended to add separate overload
protections for each motor.
For connections, see chapter
inputs (Sequence start)).
Parameters set for sequence start 1, 2 and 3 are equal.
If the Softstarter trips, and the trip must stop the motor,
all motors stop.
Sequence start has these parameters:
Parameter
08.01 Sequence mode
08.02 Ie seq 1
08.30 seq 2
08.60 seq 3
08.03 Start mode seq 1
08.31 seq 2
08.61 seq 3
08.04 Start ramp time seq 1
08.32 seq 2
08.62 seq 3
08.05 Start ramp init lev seq 1
08.33 seq 2
08.63 seq 3
08.06 Curr lim lev seq 1
08.34 seq 2
08.64 seq 3
08.07 Kick start seq 1
08.35 seq 2
08.65 seq 3
08.08 kick start level seq 1
08.36 seq 2
08.66 seq 3
08.09 Kick start lvl seq 1
08.37 seq 2
08.67 seq 3
08.06 Torque lim lvl seq 1
08.38 seq 2
08.68 seq 3
08.10 Torque tune seq 1
08.39 seq 2
08.69 seq 3
08.11 Torque ctrl gain seq 1
08.40 seq 2
08.70 seq 3
5.1.2.5 Programmable
Description
Enable sequence start of motors.
Sets the nominal current for the motor.
For good performance, it is important that
the nominal current is set to the correct
value. For Inside Delta connection, set this
parameter to 58% of the nominal motor
current.
Sets the desired start mode.
Sets the time it takes for the voltage to come
at 100%.
Sets the level from where the start ramp
initiates (voltage level for Voltage start and
torque level for Torque start).
Sets the level to which the current is limited
during start.
Enables a voltage peak at the beginning of
the start ramp.
Information: The function Current Limit is not
in operation during Kick start.
Sets the level of the Kick start in percentage
of rated voltage.
Sets the duration of the Kick start in
seconds.
Sets the level to which the torque is limited
during the start with torque control.
Adjustment of resistive losses.
Sets the speed of the voltage regulator
during torque start and stop. It seldom
needs to be changed, but if a dip occur in
the torque curve during stop, increasing this
value might solve it.
1SFC132081M0201
Example: Start 1, (Start mode seq 1) is set to Run 1
relay , (K4,K5 or K6) the relay closes when the start
signal is given, which leads to a power transfer. This
can change between Softstarters and their specific
parameter settings.
Setting range
Off, Start multiple
motors
Individual
(different for each
type)
Voltage start ramp,
Torque start ramp,
Full voltage ramp
1 ... 120 s
10 ... 99%
0.5 ... 7.5 × I e
Off, On
50 ... 100%
0.2 ... 2.0 s
20 ... 200%
0 ... 1000%
0.01 ... 10.0
| Installation and commissioning manual | Functions
Default value
Off
7
9.0 A...1250 A,
divided into 19
overlapping ranges
Voltage start ramp
10 s
30%
7.0 × I e
Off
70%
0.2 s
150%
100%
0.24
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