1. "Soft starter off"
2. Reduce starting time in menu
item Settings or if current
limiting has been set, increase
the current limiting value.
3. If the torque control is active,
check whether the selected
limiting torque is high enough
(recommended ³ 150 %)
1. "Soft starter off"
2. Increase starting time in
menu item Settings, or
3. if current limiting has
been set, possibly reduce
current limiting value
1. "Soft starter off"
2. Increase the start voltage or
start torque in menu item
Settings or
3. if current limiting has been
set, possibly increase current
limiting value
1. "Soft starter off"
2. Decrease the start
voltage or start torque
in menu item Settings
The motor reaches its
nominal rotational
speed
- quicker than desired
with an excessively
high starting current
- not softly
- according to the
specified ramp time if
no current limiting has
been set
The motor reaches
its nominal rotational
speed
- slower than
desired,
- not at all
(motor stuck)
The motor
- hums and does
not start
immediately
- does not start at
all
(motor stuck)
Motor:
The motor
starts with a
strong
sudden
increase in
torque
Increase
stopping
time or
decrease
stopping
torque
Soft stop
Pump stop
The motor
stops
abruptly,
not softly.
The water
can be
heard
during
pump
operation.
The
motor
continu
es to
run for
too
long.
Quick commissioning
3RW44 SIRIUS soft starter
Wiring inspection
- Control unit and
- Power unit
Check and connect the
voltages in the control and
main circuits
Check set parameters in Settings > Parameter set > Motor.
Set starting and stopping parameters in Settings > Parameter
set > Starting or stopping settings according to the table
"Suggested setting for commissioning" on the basis of the
respective application.
Start command "Soft starter on"
Fault message
in display
Does the motor
immediately start
softly?
Does the motor reach
its nominal rotational
speed quickly and within
the desired time?
Switch off soft
starter
Which
stopping mode
is selected?
Motor
comes to a
standstill as
desired
Motor:
Yes
No
No
Yes
Yes
No
"Soft starter off"
Correct fault (for possible faults
see Chapter 7)
Fault message
on display?
Initial parameterization
or starter in basic
factory settings?
Select language
Select application
Set the rated operating
current of the motor
Set starting time
Set current limiting
value
Save settings
Quick start menu, when switching on for the
first time or after executing a command
"Basic factory settings"
Information on quick start menu:
After applying the control voltage for the first
time, you will be automatically directed to the
quick start menu. You must complete the entire
quick start menu once to commission the soft
starter for the first time.
If you confirm the last item, "Save settings?", by
entering "yes" in the quick start menu, you can
only return to this menu by resetting the device
back to its basic factory settings. (See manual or
operating instructions)
This overwrites all settings made up until that
point.
Information on application selection:
Standard parameters are recommended due to
the set type of application.
If the required load is not listed, choose a fan in
order to preselect the necessary start
parameters.
In general:
The parameters are suggested settings.
The parameters may need to be optimized, as
explained from Section "Start command 'Soft
starter on'" onwards.
"Soft starter off"
Correct fault
(for possible faults see
Chapter 7)
Pump stop,
torque control,
braking
Save the changed parameters in
the menu item: Settings > Saving
options > Save settings.
Commissioning is complete.
Decrease
stopping
time
Increase DC braking
torque or increase
stopping time
Reduce DC braking
torque or reduce
stopping time
Increase
dynamic
braking torque
Increase DC braking
torque or increase
stopping time
DC braking
The
motor
comes to
a
standstill
but the
braking
current
continues
to flow.
(Motor
hums
when at a
standstill)
The
motor
does not
come to
a
standstill
Does the motor
continue to run during the
braking process at a
constant speed (no
recognizable
braking effect)?
Motor does not
comes to a
standstill, or
continues to run at
a constant speed
during the braking
process
Combined braking
The motor
comes to a
standstill
but the
braking
current
continues to
flow. (Motor
hums when
at a
standstill)
Reduce DC braking
torque or reduce
stopping time
Yes
Yes
No
Yes
No
No
Yes
Coasting down
No
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