ABB PSTX30 - Page 16

16 Set-up | Application manual: Waste water pump | 1SFC132104M0201
4.4 Recommended change of
parameter values
This chapter describes the recommended parameter
values. For more information about the parameters
for the PSTX softstarter see: 1SFC132081M0201 -
Softstarters Type PSTX30...PSTX370, Installation and
Commissioning Manual.
4.4.1 05 Slow speed (pump cleaning
reverse)
Menu u Parameters u Complete list u 05 Slow speed
See Figure 15 for navigation.
These are the recommended settings for Slow speed:
1. Set the parameter 05.03 Slow speed reverse to
Fast Jog
2. Set the parameter 05.04 Slow speed reverse
strength to 100%
Parameters:
Parameter Description Setting range Default
value
Recommended
Value
05.03 Slow speed reverse Sets the speed of the Pump cleaning reverse.
It should be set to the maximum speed, which
is 33% or the nominal motor speed.
Fast jog, Jog,
Creep
Jog Fast jog
05.04 Slow speed rev
strength
Sets the torque for Pump cleaning reverse. It
should be set to the highest possible, which is
100%.
10 ... 100% 50% 100%
4.4.2 08 Sequence start (pump cleaning
forward)
Menu u Parameters u Complete list u 08 Sequence
start
See Figure 15 for navigation.
These are the recommended settings for Sequence start:
1. Set the parameter 08.01 Sequence mode to
Start several motors
2. Set the parameter 08.02 Ie seq 1 to Rated
current of the motor
3. Set the parameter 08.03 Start mode seq 1 to Full
voltage start
Parameters:
Parameter Description Setting range Default
value
Recommended
Value
08.01 Sequence mode Enables sequence start of motors which is
necessary to have different starts for normal
soft start of pump and Pump cleaning
forward start.
Off, Start several
motors
Off Start several
motors
08.02 Ie seq 1 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.
Depending on
softstarter size
Depending
on
softstarter
size
Rated current of
the motor
08.03 Start mode seq 1 Sets the desired start mode for Pump
cleaning forward. For maximum effect during
the start select full voltage start.
Voltage ramp,
Tourque ramp,
Full voltage start
Voltage
ramp
Full voltage start
3