ABB PSTX30, Installation And Commissioning Manual

Page: 79 / 146

7.10 Sequence start
The softstarter can start up to three different motors
sequentially, sequence 1, 2 and 3. This is suitable when
setting up the softstarter with different applications.
Choose the parameter set via input signal to the
softstarter.
Parameter settings and physical connections for
programmable inputs must correspond.
For connections, see chapter 5.
Parameters set for sequence start 1, 2 and 3 are equal.
If the softstarter trips for any reason, and the trip is
supposed to stop the motor, all motors will be stopped.
Example: Start 1, (Start mode seq 1) is configured to Run 1
relay , (K4,K5 or K6) the relay closes when the startsignal is
given, which leads to a power transfer. This can switch between
softstarters and their specific parameter settings.
Sequence start is configured with the following
parameters:
Parameter Description Setting range Default value
08.01 Sequence mode Enable sequence start of motors. Off, Start several
motors Off
08.02 Ie seq 1
08.30 seq 2
08.60 seq 3
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, this parameter shall be set to 58% of
the nominal motor current. 9.0 ... 1250.0 A 9.0 A
08.03 Start mode seq 1
08.31 seq 2
08.61 seq 3
Sets the desired start mode. Voltage start ramp,
Torque start ramp,
Full voltage ramp Voltage start
ramp
08.04 Start ramp time seq 1
08.32 seq 2
08.62
seq 3
Sets the time it takes for the voltage to reach
100%. 1 ... 120 s 10 s
08.05 Start ramp init lev seq 1
08.33 seq 2
08.63 seq 3
Sets the level from where the start ramp initiates
(voltage level for Voltage start and torque level for
Torque start). 10 ... 99 % 30 %
08.06 Curr lim lev seq 1
08.34 seq 2
08.64 seq 3
Sets the level to which the current is limited during
start. 0.5 ... 7.5 x Ie 7.0 x Ie
08.07 Kick start seq 1
08.35 seq 2
08.65
seq 3
Enables a voltage peak at the beginning of the
start ramp.
Information: The funciton Current Limit is not
activated during Kick start.
Off, On Off
08.08 kick start level seq 1
08.36 seq 2
08.66
seq 3
Sets the level of the Kick start in percentage of
rated voltage. 50 ... 100 % 70 %
08.09 Kick start lvl seq 1
08.37 seq 2
08.67 seq 3
Sets the duration of the Kick start in seconds. 0.2 ... 2.0 s 0.2 s
08.06 Torque lim lvl seq 1
08.38 seq 2
08.68 seq 3
Sets the level to which the torque is limited during
the start wih torque control. 20 ... 200 % 150 %
08.10 Torque tune seq 1
08.39 seq 2
08.69 seq 3
Adjustment of resistive losses. 0 ... 1000 % 100 %
08.11 Torque ctrl gain seq 1
08.40 seq 2
08.70 seq 3
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. 0.01 ... 10.0 0.24
7
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com