OPERATION
48 EMX4i User Manual 710-14888-00C
8.5 Emergency Mode
Emergency mode allows the EMX4i 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 EMX4i 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.
Although emergency mode operation satisfies the functionality
requirements of Fire Mode, AuCom does not recommend its use in
situations that require testing and/or compliance with specific standards as
it is not certified.
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.
8.6 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.
• Parameter 7D
Input A Initial Delay
: sets a delay before the soft starter
monitors the state of the input, after the start signal. For example, a delay
may be required to allow time for pipeline pressure to build up.
• Parameter 7J
Input A Name
: select a name, eg 'Input A Trip' (optional).
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