Sp-## Special Functions - GE AF-650 GP Programming Manual

3.9 SP-## Special Functions

Parameter group related to special functions with regards to Line Voltage, Reset Functions, Current Limit, Energy Savings, Derating, and Accel/Decel Ramp Types.
3.9.1 SP-1# Line On/Off
Parameters to configure actions taken for Line Failures, Input Fault, and Imbalance.
SP-10 Line failure
Option: Function:
Function: Select the function to which the frequency converter must act when the threshold in par.
SP-11 Line Voltage at Input Fault has been reached.
par. SP-10 Line failure cannot be changed while motor is running.
Controlled ramp down:
The frequency converter will perform a controlled ramp down. If par. B-10 Brake Function is Off [0] or AC
brake [2], the ramp will follow the Over Voltage Ramping. If par. B-10 Brake Function is [1] Resistor
Brake the ramp will follow the setting in par. C-23 Quick Stop Decel Time.
Controlled ramp-down [1]:
After power-up the frequency converter is ready for start. Controlled ramp-down and trip [2]: After power-
up the frequency converter needs a reset for starting.
1. The power is back before the energy from DC /moment of inertia from load is too low. The
frequency converter will perform a controlled ramp down when par. SP-11 Line Voltage at Input
Fault level has been reached.
2. The frequency converter will perform a controlled ramp down as long as energy in the DC link
is present. After this point the motor will be coasted.
Kinetic back-up:
The frequency converter will perform a Kinetic back-up. If par. B-10 Brake Function is Off [0] or AC brake
[2] , the ramp will follow the Over Voltage Ramping. If par. B-10 Brake Function is [1] Resistor Brake the
ramp will follow the setting in par. C-23 Quick Stop Decel Time.
AF-650 GP Programming Guide
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