Curtis 1238SE - Page 58

4 — PROGRAMMABLE PARAMETERS
Curtis 1232E/34E/36E/38E & 1232SE/34SE/36SE/38SE Manual, os 31 – May 2017 Return to TOC
pg. 54
DRIVERS: FAULT CHECKING MENU
PARAMETER ALLOWABLE RANGE DESCRIPTION
Driver1 Checks Enable
|Driver1_Checks_Enable
|OptionBits2 [Bit 1]
0x306B 0x00
On / Off
On / Off
The ve Checks Enable parameters are used to enable driver and coil fault
detection at the ve individual drivers (at Pins J1-6, J1-5, J1-4, J1-3, and J1-
2). When a Driver Checks parameter is enabled, the associated driver, driver
wiring, and driver load are checked to verify that the driver correctly drives the
load both high and low. The checks will occur regardless of the PWM output
of the driver. The checks will detect both open and shorted conditions. When a
fault is detected, the controller opens the driver and issues a fault code.
If nothing is connected to a driver, its Checks Enable parameter should be set
Off.
NOTE: Short circuit protection is always active at these ve drivers, regardless
of how Checks Enable is set.
Driver2 Checks Enable
|Driver2_Checks_Enable
|OptionBits2 [Bit 2]
0x306B 0x00
On / Off
On / Off
Driver3 Checks Enable
|Driver3_Checks_Enable
|OptionBits2 [Bit 3]
0x306B 0x00
On / Off
On / Off
Driver4 Checks Enable
|Driver4_Checks_Enable
|OptionBits2 [Bit 4]
0x306B 0x00
On / Off
On / Off
PD Checks Enable
|PD_Checks_Enable
|OptionBits2 [Bit 5]
0x306B 0x00
On / Off
On / Off
External Supply Max
External_Supply_Max
0x3046 0x00
0 – 200 mA
0 – 800
Sets the upper threshold of the combined current of the 5V and 12V external
supplies. At or above this threshold a fault will be created that can be read by
VCL.
External Supply Min
External_Supply_Min
0x3047 0x00
0 – 200 mA
0 – 800
Sets the lower threshold of the combined current of the 5V and 12V external
supplies. At or below this threshold a fault will be created that can be read by
VCL.
DRIVERS: PWM FREQUENCY PARAMETER
PARAMETER ALLOWABLE RANGE DESCRIPTION
PWM Frequency
PWM_Frequency
0x3938 0x00
100 – 1000 Hz
100 – 1000
This single parameter denes the frequency of Drivers 1 through 4.
MOTOR MENU
PARAMETER ALLOWABLE RANGE DESCRIPTION
Typical Max Speed
Typical_Max_Speed
0x304D 0x00
500 – 8000 rpm
500 – 8000
Set this parameter to the typical maximum motor speed of the vehicle. This
value does not need to be set precisely; an estimate will do. All of the vehicle
response rates are normalized to Typical Max Speed.
For example, suppose Typical_Max_Speed is xed at 6000 rpm, and
Full_Accel_Rate_LS_SpdM = 3.0 seconds:
If Max_Speed_SpdM = 6000 rpm, it will take 3.0 seconds to accelerate from
zero to top speed (6000 rpm).
If Max_Speed_SpdM = 3000 rpm, it will take 1.5 seconds to accelerate from
zero to top speed (3000 rpm).
If Max_Speed_SpdM = 1000 rpm, it will take 0.5 seconds to accelerate to
accelerate from zero to top speed (1000 rpm)