ABB PSTX Series Installation And Commissioning Manual page 90

7.13 Automatic restart
The Softstarter automatically starts the motor again after
a fault occurred.
INFORMATION
Automatic restart only works for phase loss, bad
network and low supply voltage..
The primary requirement is that if a fault or protection was
asserted, the Softstarter automatically starts the motor
again in order to ensure an uninterrupted process.
The event only resets after the Auto-reset delay time
passed. If Auto-restart is enabled, the Softstarter does
not start the fault relay directly, because the fault relay
can sometimes be connected to a breaker upstream.
The Softstarter makes multiple attempts to start again,
with a fixed time interval between each, and ignores the
start digital input signal during this time.
If the fault still remains after a restart, this is a failed
attempt to start again.
The fault relay is only on after the number of failed
restarts is higher than the given number.
Upon a stop signal the auto-restart sequence is aborted
and the fault relay is off.
7
Automatic restart has these parameters:
Parameter
09.01 Auto-reset delay time
09.02 Auto-restart
09.03 Auto-restart max attempts
90 Functions | Installation and commissioning manual |
The programmable options are:
• None - No function on the digital input.
• Reset - Fault/protection reset.
• Enable - When In0=0, the Softstarter stops
immediately. When In0=1, the Softstarter is in normal
operation. Overrides all other inputs, except LOCAL
CONTROL.
• Slow speed forward - While the digital input is high,
the motor will slowly move forward.
• Slow speed reverse - While the digital input is high,
the motor will slowly move in the reverse direction.
• Motor heating - While the digital input is high, the
motor heating is active.
• Stand still brake - While the digital input is high, the
stand still brake is active.
• Start reverse - While the digital input is high, the
Softstarter will start in the reverse direction, using
external reversing contactors.
• User defined protection - When activated (the
protection can be programmed to be active low or
high) the User defined protection will be activated.
• Emergency mode - Active high, Emergency mode
is activated when digital input is high. - Active low,
Emergency mode is activated when digital input is low.
• Fieldbus disable control - When the digital input is set
high, the motor cannot be controlled from the fieldbus.
Instead the start/stop digital input must be used, or
the HMI.
• Start 1 - Start motor 1. See chapter 7.12 Sequence
start.
• Start 2 - Start motor 2. See chapter 7.12 Sequence
start.
• Start 3 - Start motor 3. See chapter 7.12 Sequence
start.
• Switch to remote control - A positive flank from low to
high on digital input takes the control from the HMI,
i.e. local control is changed to remote control.
• Cancel brake,
Pump cleaning automatic,
Pump cleaning forward,
Pump cleaning backward,
Hold in Remote (Active High),
Hold in Remote (Active Low).
• Hold in Remote (Active High) - Then the digital input
is set high the control from HMI, i.e. local control is
changed to remote control and can not be changed
back to local as long as the digital input is high.
• Hold in Remote (Active Low) - The same as above
except that is is active low inst ed of active high.
Description
Delay time after which the event is reset.
Enable auto-restart function.
Max number of auto-restart attempts.
1SFC132081M0201
Setting range Default value
0 ... 3600 s 10 s
Off,On Off
1 ... 10 5