Fig. 4 Command Signal Flow - Curtis 1220 Manual

3 — PROGRAMMABLE PARAMETERS:
PARAMETER
Command Analog Left
Command Analog Center
Command Analog Right
Command Analog Fault Min
Command Analog Fault Max
Command Analog 1
(pin J1-6)
Fig. 4
Command signal flow.
12
Command Device Parameters
COMMAND DEVICE, cont'd
ALLOWABLE
RANGE
0 – 5.00 V Defines the command analog wiper voltage required to produce a steer
position command of full left (Steer Command = -100% = Left Stop).
0 – 5.00 V Defines the command analog wiper voltage required to produce a steer
position command of center (Steer Command = 0% = 0°).
0 – 5.00 V Defines the command analog wiper voltage required to produce a steer
position command of full right (Steer Command = 100% = Right Stop).
0 – 5.00 V Sets the minimum threshold for the analog pot input.
If the command analog wiper voltage goes below this threshhold
for 60 ms, a fault is issued.
0 – 5.00 V Sets the maximum threshold for the analog pot input.
If the command analog wiper voltage rises above this threshhold
for 60 ms, a fault is issued.
[3.3V]
[12 bits]
The normalization map takes Command Analog 1 in volts and maps it to Steer
Command in percent. Command Analog Left may be set higher or lower than
Command Analog Right. Command Analog Center must be between Command
Analog Left and Command Analog Right. Assuming Command Analog Left is
less than Command Analog Right, the three points of the normalization map
are defined (from left to right in the diagram above) as:
X = Command Analog Left and Y = -100%
X = Command Analog Center and Y = 0%
X = Command Analog Right and Y = 100%.
DESCRIPTION
Command Analog Left
Command Analog Center
Command Analog Right
Steer Command
Curtis 1220 Manual,
Rev. C