4 — PROGRAMMABLE PARAMETERS
Curtis AC F2-A, F4-A, F6-A Motor Controllers – FOS 4.5 – April 2022 Return to TOC
pg. 126
CONTROLLER SETUP/IO ASSIGNMENTS — COIL DRIVERS MENU
PARAMETER ALLOWABLE RANGE DEFAULT DESCRIPTION
Main Contactor Driver
Main_Contactor_Driver
0x34D2 0x00
0 – 5
0 – 5
3
[PCF]
Main Contactor Driver assignment.
Changes require a key cycle to take effect.
Same default (Driver-3) for both 35 and 23 pin controllers.
Em Brake Driver
EM_Brake_Driver
0x3480 0x00
0 – 5
0 – 5
0
[PCF]
EM Brake Driver assignment.
Changes require a key cycle to take effect.
Use Driver-2 (3 amps) on both the 35 and 23 pin controllers.
Pump Contactor Driver
Pump_Contactor_Driver
0x372C 0x00
0 – 5
0 – 5
0
[PCF]
DC Pump (i.e., hydraulic) Driver assignment.
Changes require a key cycle to take effect.
This driver will close a contactor to fully “turn on” a DC hydraulic
pump motor.
Load Hold Driver
Load_Hold_Driver
0x3C41 0x00
0 – 5
0 – 5
0
[PCF]
Driver assignment for the load-hold valve.
Changes require a key cycle to take effect.
Neither the 35 nor 23 pin controllers have this as an assigned
(default) driver.
Lower Driver
Lower_Driver
0x4FCC 0x00
0 – 7
0 – 7
0
[PCF]
Driver assignment for the lower valve.
Use the proportional valve (Driver-1) as the lowering valve on both
the 35-pin and 23-pin contollers.
Changes require a key cycle to take effect.
CONTROLLER SETUP — OUTPUTS MENU
PARAMETER ALLOWABLE RANGE DEFAULT DESCRIPTION
Driver Output Frequency
Driver_Output_Frequency
0x3422 0x00
500 – 2000 Hz
500 – 2000
500 Hz Controls the frequency of the PWM on drivers 2-5.
Coil Supply Start Up Checks
Coil_Supply_Startup_Check
0x34D3 0x00
Off/On
On/Off
On On: The controller performs a verication check of the internal
KSI-to-Coil Return circuit at startup if the hardware supports it. This
involves switching the coil-supply on/off at startup. If the check
fails, it triggers the COIL_SUPPLY_FAULT (ash code 10-9, 0xA9).
Off: To prevent (stop) the startup verication check.
Driver 1
Driver 1 Checks Enable
Driver_1_Checks
0x341B 0x00
Enumeration
0 – 2
Enumeration
0 = Checks off
1 = Checks On
2 = Safety Designated
Checks Off The Checks Enable parameter enables the driver and coil
fault detection.
When set to On, this parameter checks the associated driver
wiring and driver load 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 check detects both open and
shorted conditions. When a fault occurs, the controller opens the
driver and issues the DRIVER_1_fault.
Turn this parameter off when not using a particular driver. If
unused (open pin), set this Checks Enable parameter to Off.
Note: Short circuit protection is always active at these ve drivers
regardless of how Checks Enable parameter is set.
If a driver is safety designated, it is treated the same way as if it was
set to (1 – ON) except it will have an additional check for if the driver
is stuck-on which would result in the disabling of the coil supply.
CONTROLLER SETUP/IO ASSIGNMENTS — COIL DRIVERS MENU
ese are the standard coil-driver assignments using Drivers 1-5. A selection of “0” indicates no
driver is assigned. Note that the EM Brake driver, as shown in Figures 12–15, is a 3-amp driver. e
other PWM drivers are 2 amperes. All drivers are connected to the coil return which has the inductive
coil suppression. Using the coil drivers for RC or resistive loads can cause an overcurrent fault due
to in-rush/peak current over the driver‘s intended usage.
Drivers 6 and 7 are “digital drivers” available as 1 Amp 100% On low-side drivers.
Quick Links:
Table 11 p.25
Fig. 12 p.16
Fig. 13 p.17
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