Curtis 1239E - Page 60

4 — PROGRAMMABLE PARAMETERS
Curtis 1239E-1269E Manual, os 37.0 RevA – May 2021
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DRIVERS: DRIVER 3 MENU
PARAMETER ALLOWABLE RANGE DESCRIPTION
Pull In Voltage
Driver3_Pull_In_Voltage
0x3864 0x00
0 – 100%
0 – 32767
The pull-in voltage parameter allows a high initial voltage when the contactor
driver rst turns on, to ensure contactor closure. After 1 second, this peak
voltage drops to the contactor holding voltage.
NOTE: This voltage will be battery voltage compensated.
Holding Voltage
Driver3_Holding_Voltage
0x3865 0x00
0–100%
0 – 32767
The holding voltage parameter allows a reduced average voltage to be applied
to the contactor coil once it has closed. This parameter must be set high
enough to hold the contactor closed under all shock and vibration conditions
the vehicle will be subjected to.
NOTE: This voltage will be battery voltage compensated.
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 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.