GE H4V262Y1 Installation And Operation Manual page 31

ADJUSTABLE FEATURES
SX TRANSISTOR CONTROLS
This function allows the adjustment of the field weakening
level in order to set the top speed of the motor. This
function is used only when Mode 0 is selected.
Range 0 to 20 amps
Set 51 to 195
Resolution 0.15 amps per set unit
Example Setting of 73 = (73-51) x 0.15
CAUTION: Do not set this function to a value less than 51.
Important Note: The function is used to optimize motor and
control performance and this setting will be determined by
GE and OEM engineers at the time of vehicle development.
This setting must not be changed by field personnel without
the permission of the OEM.
FUNCTION 8 MAX FIELD CURRENT
This function allows for the adjustment of the maximum
field current in order to obtain the maximum torque of the
motor.
Range 0 to 20 amps
Set 51 to 195
Resolution 0.15 amps per set unit
Example Setting of 170=(170–51) x 0.15
= 17.85 amps
CAUTION: Do not set this function to a value less than 51.
Important Note: The function is used to optimize motor and
control performance and this setting will be determined by
GE and OEM engineers at the time of vehicle development.
This setting must not be changed by field personnel without
the permission of the OEM.
FUNCTION 9 REGEN ARMATURE CURRENT LIMIT
This function allows for the adjustment of the maximum
armature current limit during regenerative braking.
Range 32 to 250 amps
Set 32 to 255
Resolution 1.0 amps per set unit
Example Setting of 221 = 221 amps
FUNCTION 10 REGEN FIELD CURRENT LIMIT
This function allows for the adjustment of the maximum
field current limit during regenerative braking.
Range 0 to 20 amps
= 3.3 amps
Set 51 to 195
Resolution 0.15 amps per set unit
Example Setting of 180 = (180-51) x 0.15
= 19.35 amps
CAUTION: Do not set this function to a value less than 51.
Important Note: The function is used to optimize motor and
control performance and this setting will be determined by
GE and OEM engineers at the time of vehicle development.
This setting must not be changed by field personnel without
the permission of the OEM.
FUNCTION 11 NOT APPLICABLE
This function is not applicable to this control type.
FUNCTION 12 REVERSE SPEED LIMIT
This function allows for the adjustment of the top speed of
the vehicle (maximum battery volts to the motor) when it is
being operated in the reverse direction.
Range 100% to 0% of battery volts
Set 0 to 255
Resolution 0.392% per set unit
Example: Setting of 0 = no speed limit
Setting of 255 = maximum speed
reduction
Setting of 100 = 100 x .392
= 32.9% speed reduction
FUNCTION 13 NOT APPLICABLE
This function is not applicable to this control type.
FUNCTION 14 INTERNAL RESISTANCE
COMPENSATION
This function is used when the Battery Discharge Indicator
is present. Adjustment of this function will improve the
accuracy of the BDI. In order to determine this setting, the
voltage drop of the battery under load must first be
calculated by the following method:
1. Record open circuit voltage (Vo) by measuring the
voltage at the control positive and negative power
terminals.
2. Load the traction motor to 100 amps in 1A and record the
voltage (V ) at the control positive and negative power
L
terminals.
3. Calculate voltage drop (V
V = V - V
Drop O L
Page 30
) as follows:
Drop
August 2002