Operation
8 Operation
8.1 Start, Stop and Reset Commands
The soft starter can be started and stopped via the digital inputs, remote keypad,
communication network or smart card. The command source can be set via the Setup
Tools, or using parameter 1A Command Source.
• The soft starter will only accept Start and Reset commands from the designated
command source.
• The soft starter will accept Stop commands from the designated command source,
but can be forced to stop by opening the reset input.
• The programmable input can be used to override the selected command source
(see parameter 7A Input A Function).
8.2 Command Override
The programmable input (13, 14) can be used to override the command source, for
situations where the normal control mechanism has been lost. Set parameter 7A Input A
Function to the alternative command source (eg 'Command Override: Keypad').
While the input is active, the starter will only accept commands from the selected override
source. To restore control to the command source selected in parameter 1A Command
Source, reopen the input.
8.3 Emergency Mode
Emergency mode allows the soft starter to run the motor and ignore trip conditions.
Emergency mode is controlled via a programmable input (input A 13, 14 or input B 13, 15)
and parameter 7A Input A Function/7E Input B Function must be set to 'Emergency Mode'.
A closed circuit across 13, 14 activates emergency mode. When the soft starter receives a
start command, it will continue to run until a stop command is received, ignoring all trips
and warnings.
Emergency mode can be used in conjunction with any command source.
NOTE
Although emergency mode operation satisfies the functionality requirements of
Fire Mode, The Manufacturer does not recommend its use in situations that require
testing and/or compliance with specific standards as it is not certified.
CAUTION
Continued use of emergency mode is not recommended. Emergency mode may
compromise the starter and/or motor life as all protections and trips are disabled.
Using the starter in emergency mode will void the product warranty.
8.4 Auxiliary Trip
An external trip circuit (such as a low pressure alarm switch for a pumping system) can be
used to trip the soft starter and stop the motor. The external circuit is connected to a
programmable input (input A 13, 14 or input B 13, 15). To control the behaviour of the trip,
set the following parameters:
• Parameter 7A Input A Function: select 'Input Trip (N/O)'.
• Parameter 7B Input A Trip: set as required. For example, 'Run Only' limits the input
trip to when the soft starter is running only.
• Parameter 7C Input A Trip Delay: sets a delay between the input activating and the
soft starter tripping.
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