Mitsubishi Electric MEsoftstart/I00, Users, Installation & Instruction Manual

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71 Basic operation – Pro models
Parameters Description - with options or range
Ramp Down Time In this mode, the Firing angle of the SCRs decreases linearly from the maximum to zero with the Ramp
up time.
This parameter defines the ramp down time [10sec – 30seconds]
Pedestal:
In this mode, the firing angle drops immediately to a predefined pedestal level. It remains at this
pedestal level until it intersects with the slope of a Normal Ramp down of the ramp down stop type.
At that time, it continues linearly down until it reaches the zero value
Pedestal Voltage This parameter determines the voltage amplitude of the pedestal voltage as a percentage of the
nominal voltage . The parameter is selectable between [5% - 60%]
Advanced Setup
Parameters that specify the motor current are configured under this group:
Parameters Description - with options or range
Kickstart Voltage % In this mode, the Firing angle of the SCRs has a brief step function that lasts for a defined period
before returning to zero and then resuming a linear increase to the maximum value with respect to
the Ramp-up time.
This parameter
determines the voltage amplitude of the kick-start voltage as a percentage of the
nominal voltage . The parameter is selectable between [5% - 60%].
Kickstart Period This parameter defines the period that the kick-start voltage is present for. The parameter can be set
between [200ms - 2 Seconds].
Constant Current %
This parameter is entered as a
percentage of Max Full Load
Current (MFLC) for the selected
motor
In this mode, the soft starter will increase the voltage until the specified current is measured and then
maintain the current for the duriation of the maximum start time or until full voltage reached (i.e. the
motor is running).
This parameter specifies the constant current as a percentage of the Motor Full Load Current, that the
soft starter needs to maintain during the starting of the motor.