Curtis Instruments AC F4-A User Manual

4 — PROGRAMMABLE PARAMETERS
pg. 51
Return to TOC Curtis AC F4-A Motor Controller – August 2020
throttle, the signal-voltage is also converted to a percentage (Percent, see the Inputs menu) and then
processed in VCL. In these cases, the variable VCL_rottle_Pot is used to process throttle signals
through the map function (where 0 – 1000
–
–
–
0 – 100%), versus using VCL_rottle, which does not
pass through the mapping blocks in Figure 11.
Following the throttle mapping is the switch for selecting VCL_rottle as the input, when the
parameter VCL_rottle_Enable is set (On). Continuing, the next modier is the HPD State machine
that uses the settings based upon the HPD SRO Type and the Sequencing_Delay parameters. At this
point in the signal chain, to modify the throttle signal further, use the rottle_Multiplier parameter,
which is useful in VCL throttle processing. e throttle signal will then be between ± 100% and
accessible using Mapped_rottle monitor variable. Final modication is via the rottle_Filter,
where a low-pass lter is applied. Higher values will make the throttle more responsive to quick
changes. Lower values will make the throttle less responsive and subject to electrical noise. Barring
events that will “zero” the throttle (see the list in Figure 11), the throttle signal will pass to the control
mode block and onto the motor control algorithm code as the rottle_Command monitor variable.
Figure 11 shows the branch to dual drive. For dual drive applications, refer to the F-Series Dual Drive
manual supplement.

Curtis Instruments AC F4-A Specifications

General

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