Curtis Instruments AC F4-A User Manual

6 — COMMISSIONING
Curtis AC F4-A Motor Controller – August 2020 Return to TOC
pg. 154
15. Using the CIT Programmer app’s List View ( ), assign the Lower_Driver parameter (CAN
Index 0x4FCC 0x00) to the driver operating the hydraulic lowering valve, Driver 1. is is the
proportional driver. Set the other driver parameters to match the application following the
valve manufacturer’s ratings. e hydraulic system conguration will be as illustrated Figure 17.
Lower_Driver = 1
Lower_Deadband_Percent = 15% (default)
Lower_Decel_Rate = 0.1 sec (default)
Lower_Oset = 0% (default)
Driver_1_Dither_Percent
Driver_1_Dither_Period
16. If the application uses a hydraulic load hold valve, set the Load Hold Valve Enable On Li
parameter On; otherwise set it O.
Application Setup » Hydraulics » Load Hold Valve Settings » Load Hold Valve Enable On Lift
17. Set the load hold driver to 3.
Load Hold Driver = 3
Controller Setup » IO Assignments » Coil Drivers » Load Hold Driver
To prevent an accidental turn-on of the hydraulic system and peripherals at startup/key-cycle,
adjust parameters Pump Interlock Source, Hydraulics_Inhibit_Type, and the Sequencing Delay
to match the application.
18. To enable the Li via switches and Lower via Analog 18, set the pump interlock parameter.
Pump Interlock Source = 0
CIT List View, » Pump Interlock Source
19. Set the Hydraulics_Inhibit_Type to match the application. This parameter is in the CIT
Programmer “at list”.
0 = Diagnostics are disabled.
1 = Li Only. e li throttle is stuck high (> 25%) at startup.
2 = Lower Only. e lower throttle is stuck high (> 25%) at startup.
3 = Both. e Li or the Lower throttles are stuck high (> 25%) at start up.
e hydraulics inhibit fault diagnostics can detect a stuck-high hydraulic throttle condition
(>25%) at startup. For the switch inputs, this occurs when the switch is asserted (i.e., 100%).
e diagnostics are congurable (as above) to detect either the li throttle chain, lower throttle
chain or both. e diagnostics begin execution aer a congurable delay set by the Sequencing
Delay aer a KSI turn-on (cycle). e diagnostics stop execution aer a period of 64msec. is
startup delay is for allowing momentary KSI disruptions or quick KSI cycling. Prior to the
inhibit fault diagnostic, the controller processes the Sequencing Delay parameter.
20. e Sequencing Delay works to prevent inadvertent activation of HPD/SRO, which are traction
throttle based. To account for the Hydraulics_Inhibit_Type, add 64ms to compute the total delay
before the hydraulic operation will commence.
Application Setup » Throttle » Sequencing Delay

Curtis Instruments AC F4-A Specifications

General

Brand	Curtis Instruments
Model	AC F4-A
Category	Controller
Language	English