GE IC3645SR4R333AS2 Installation And Operation Manual page 36

ADJUSTABLE FEATURES
SX TRANSISTOR CONTROLS
FUNCTION 20 HILL CLIMBING SPEED LIMIT
This function allows for the adjustment of the speed limit
when the vehicle is on such an incline that the tilt sensor
switch is open.
Range
Set
Resolution
Example:
FUNCTION 21 NOT APPLICABLE
This function is not applicable to this type of control and
should not be adjusted.
FUNCTION 22 NOT APPLICABLE
This function is not applicable to this type of control and
should not be adjusted.
FUNCTION 23 ERROR COMPENSATION
(Push CONT 8)
This function is used to reduce the ripple in the field current
due to the interaction between the motor field design and
the digital field current regulation circuit. The value for this
function will be defined to the vehicle manufacturer by the
GE application engineer.
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 24 FIELD WEAKENING START
(Push CONT 9)
This function allows for setting the armature current at
which minimum field current will be achieved.
Range
Setting
Resolution
Example
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.
0 to 20
0 to 20
1 pulse per sample
Setting of 5 = 5 pulses per
sample rate
0 to 414 amps
0 to 255
1.625 per set unit
Setting of 20 = 32.5 amps
To ensure optimum operation of the control, this function
must be left with zero stored in this register.
FUNCTION 26 RATIO
( Push CONT 11)
This function sets the ratio between armature and field
current when transitioning from minimum field to maximum
field current. The setting represents the quantity of field
current changed for each 1 amp of armature current
changed.
Max Max
Fld Ref Change Set
20 .24 0 to 10
30 .24 0 to 10
40 .27 0 to 10
50 .48 0 to 10
60 .48 0 to 10
FUNCTION 27 NOT APPLICABLE
This function is not applicable to this type of control and
should not be adjusted.
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.
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.
Note: 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.
Page 36
Resolution Example
Per unit value If set at 5
0.024 amps 0.12 amps
0.024 amps 0.12 amps
0.027 amps 0.135 amps
0.048 amps 0.24 amps
0.048 amps 0.24 amps
May 2000