Input Device Parameter - Curtis 1222 Manual

3 — PROGRAMMABLE PARAMETERS:
ALLOWABLE
PARAMETER RANGE
Command Input Device
0x4003 0x00
Supervision Input Device
0x40E4 0x00
20
2 9 J A N U A R Y 2 0 1 3 D R A F T
Command Input Parameters

INPUT DEVICE PARAMETER

n
•
0 – 4 These two parameters determine which inputs will be used as the primary
0 – 4 and supervisory user steer commands:
n
•
0 – 5 0 = Pot input, where Analog 1 and Analog 3 inputs are connected
0 – 5 to two potentiometers as redundant inputs.
1 = Encoder input, where Encoder 1 and Encoder 2 inputs are
DESCRIPTION
When an analog steering command is used, two channels
are required.
NAME PIN FUNCTION
Analog 1 8 Primary analog input command
Analog 3 19 Supervisory analog input command
It is best practice to wire the primary and supervisory input sig-
nals in an "X" configuration (0–5V and 5V–0). However, the 1222
has independent maps and will support redundant signals that
move in the same direction.
connected to two quadrature encoders as redundant inputs.
When an encoder steering command is used, two quadra-
ture encoders are required. In the table below, "+" and "-" indicate
encoder phase differences ("-" being some amount of phase shift
from "+"). This means that the primary and supervisory encoders
do not have to have the same alignment.
NAME PIN FUNCTION
Encoder 1A 14 Primary quadrature encoder command A+
Encoder 1B 25 Primary quadrature encoder command A-
Encoder 2A 33 Supervisory quadrature encoder command
Encoder 2B 20 Supervisory quadrature encoder command B-
B+x
Curtis 1222 Manual,
os 15