GE Industrial Solutions DV-300 DC Drive Users Manual - Manual (Page 115)

DV-300 Adjustable Speed Drives
——— CONVERTER OPERATION ———
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5.3.5 Drive tuning
5.3.5.1 Self tuning of the current regulator
The following operation must be done before enabling the drive for the first time.
The autotuning of the current regulator is enabled via the R&L Search command. The values stated for the ar-
mature resistence and inductance are recorded as Arm resistance and Arm inductance (CURRENT REGULAT
menu). If necessary the user can change these parameters value.
- If the motor field is externally power supplied (not from the drive), disconnect the motor field supply terminals.
It is not necessary when the motor field power supply comes from the drive (C1 & D1 terminals)
- The user must be sure that during the current regulator self tuning the motor shaft does not turn (remanent
magnetization, field series motor, etc.). If necessary, lock the motor shaft during the procedure.
- AC input voltage to U2 and V2 terminals,
- Drive disabled ( no +24 voltage at terminal 12 )
- Set Main commands parameter (START UP or CONFIGURATION menu) to “Digital” (Enable & Start/
stop command from the keypad).
- Set the Armature current desired via T current lim + (positive torque) and T curent lim - (Negative torque).
- Set Overload control function to disable. (Enable overload = Disabled).
- Set R&L Search command to ON (START UP menu)
- Power up the drive
- Power up U, V, W terminals,
- Enable the drive (+24V to terminal 13) and Start (+24V to terminal 12).
- Enable drive command = ENABLE (START UP menu).
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! If Stop mode parameter is not set to “OFF” (FUNCTIONS/Stop Control menu), press Start
button on the keypad.
- The R&L Search takes a few minutes, and can be interrupted by powering off the drive or set Enable drive
to disable.
- At the end of the current self tuning procedure the drive is automatically set to disabled and the R&L
Search command to OFF.
- Set the Enable drive parameter to disabled (No voltage on terminal 12)
- Set Main commands parameter to the desired setting (Terminals or Digital).
- Set Overload control function to enable if used. (Enable overload = Enabled).
- Save setting via Save parameters command (START UP menu)
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! The procedure can be interrupted by powering off the drive or set Enable drive to disable.
The previous parameters setting are stored in the drive. It is not possible to start the procedure
if the Enable drive is set to disable.