4 — PROGRAMMABLE PARAMETERS
Curtis AC F4-A Motor Controller – August 2020 Return to TOC
pg. 104
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 Main Contactor Driver assignment.
Em Brake Driver
EM_Brake_Driver
0x3480 0x00
0 – 5
0 – 5
0 EM Brake Driver assignment.
Pump Contactor Driver
Pump_Contactor_Driver
0x372C 0x00
0 – 5
0 – 5
0
[PCF]
DC Pump (i.e., hydraulic) Driver assignment.
Load Hold Driver
Load_Hold_Driver
0x3C41 0x00
0 – 5
0 – 5
0
[PCF]
Driver assignment for the load-hold valve.
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 preforms 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
On/Off
On/Off
Off The Checks Enable 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 is set.
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 Fig 6 and 7 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 over current 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 8 p.18
Fig. 6 p.10
Fig. 7 p.11
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