GE IC3645SR4T405E1 Installation And Operation Manual page 43

ADJUSTABLE FEATURES
IT TRANSISTOR CONTROLS
The following functions have function
numbers larger than the numbers on the
Handset keyboard. To access these
functions. Push the CONT key and the
number shown in the following instructions at
the same time. THE SEAT SWITCH MUST BE
CLOSED.
FUNCTION 25 MONITOR
( Push CONT 10)
This function allows the monitoring of certain control
functions by looking directly at the RAM of the
microprocessor. Because absolute memory locations
need to be known, this function should not be used
without detailed instructions from the GE application
engineer.
This function should only be adjusted by the vehicle
OEM. To ensure optimum operation of the control,
this function must be left with zero stored in this
register.
FUNCTION 26 BASE RATIO
( Push CONT 11)
This function sets the ratio between armature and field
current when operating below the maximum field current
and above the Field Weakening Start point. The setting
represents the quantity of field current changed for each 1
amp of armature current changed.
Max Fld Ref Set
40 0 to 255
Range
Setting
Resolution
Example: Setting of 10 = 0.3125 VAL
I = VAL ( I
FIELD MOTOR
FUNCTION 28 STORED STATUS CODE COUNT
POINTER
( Push CONT 13)
This register contains the location of the last stored status
code recorded of the 16 stored status codes. These
stored status codes have caused a PMT controller
shutdown and/or disruption of normal vehicle operation.
Resolution Per Unit Value
0.03125 amps
0 to 8 amps
0 to 255
0.3125 amps per unit
x 0.03125 )
To determine which stored status code was the last one
recorded, read the number stored in Function 28. Using
the Memory Map for your logic card, match the "stored
status code pointer number" [the number shown in
(bold italics) in the HS (Handset) number column] on the
memory map, with the number obtained from Function 28.
This will be the last stored status code recorded.
Note: When scrolling through the stored status code
register, the register always starts at status code 1
and scrolls to status code 16. Instructions for
scrolling the register are in section 5.3.2 of this
instruction booklet.
FUNCTION 48 MODE 1 - ARMATURE CONTROLLED
ACCELERATION Push CONT 1)
This function allows for the adjustment of the rate of time
it takes for the control to accelerate to 100% applied
battery voltage to the motor on hard acceleration.
Range
Set
Resolution
Example:
This C/A takes effect when the vehicle is in Mode 1 (both
SW1 and SW2 equal zero volts).
FUNCTION 49 MODE 1 PEDAL DOWN REGEN
CURRENT LIMIT
( Push CONT 2)
Same as Function 20
This function adjusts the rate at which speed is reduced
during regenerative braking when the accelerator pedal is
released and start switch opens or the control receives a
directional change signal.
Setting 1 to 255
Setting of 1 = Most aggressive braking
Setting of 255 = Least aggressive braking
FUNCTION 50 MODE 1 MIN FIELD CURRENT
( Push CONT 3 )
Same as Function 7
This function allows the adjustment of the field weakening
level in order to set the top speed of the motor.
Min Max Set
0 40 51 to 255
MIN I = (VAL-51) X 0.269
F
Page
0.025 to 6.3 seconds
0 to 255
0.025 seconds per set unit
Setting of 20 = 0.5 seconds
Resolution Per Unit Value
0.269
November 2005
43