Curtis 1222 - Page 30

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Curtis 1222 Manual, os 15
2 9 J A N U A R Y 2 0 1 3 D R A F T
3 — PROGRAMMABLE PARAMETERS: Command Input Parameters
COMMAND INPUT DEVICE 2 – SIN/COS SENSOR
ALLOWABLE
PARAMETER RANGE DESCRIPTION
Left Angle (deg) -1800.0° – 0.0°
• n
In Absolute Position mode, this parameter defines the position (in degrees)
0x40CC 0x00 -20480–0 required to produce a steer command of full left (Steer Command = -100%).
In Absolute Position mode, this parameter should be adjusted within the
range -180.0° – 0.0°.
In Relative Position mode, the parameter defines the number of turns
(in degrees) required to produce a steer command from center to full left
(Steer Command = -100%).
Center Angle (deg) -180.0° – 180.0°
• n
In Absolute Position mode, this parameter defines the position (in degrees)
0x40D2 0x00 -2048–2047 required to produce a steer command of center position (Steer Command =
0%).
In Relative Position mode, this parameter is not used.
Right Angle (deg) 0.0° – 1800.0°
• n
In Absolute Position mode, this parameter defines the position (in degrees)
0x40CD 0x00 0–20479 required to produce a steer command of full right (Steer Command = 100%).
In Absolute Position mode, this parameter should be adjusted within the
range 0.0° – 180.0°.
In Relative Position mode, the parameter defines the number of turns
(in degrees) required to produce a steer command from center to full right
(Steer Command = 100%).
Offset 0 – 10.00 V
• n
Set this parameter to the midpoint voltage of the sine wave output of the
0x40CE 0x00 0 – 1023 sin/cos sensor. This value is usually available in the sensor specifications,
and is typically half the voltage supply to the sensor.
Amplitude 0 – 10.00 V
• n
Set this parameter to one half of the expected peak-to-peak voltage
0x40DE 0x00 0 – 1023 for the sin/cos sensor input signals.
Swap Direction On / Off
• n
Use this parameter to invert the signal to avoid physically swapping
0x406A 0x00 On / Off the wires to pins 8 and 19.
Absolute Mode On / Off
• n
The sensor is in absolute position mode when this parameter is set to On.
0x40F0 0x00 On / Off The sensor is in relative position mode when this parameter is set to Off.
Fault Min 0 – 10.00 V Sets the minimum threshold for the Analog 1 and Analog 3 inputs of the
0x400B 0x00 0 – 1023 sin/cos sensor. If either the Analog 1 or Analog 3 voltage falls below this
threshold for 60 ms, a fault is issued.
Fault Max 0 – 10.00 V Sets the maximum threshold for the Analog 1 and Analog 3 inputs of the
0x400C 0x00 0 – 1023 sin/cos sensor. If either the Analog 1 or Analog 3 voltage rises above this
threshold for 60 ms, a fault is issued.
Tolerance 0 – 10.00 V The sine and cosine signals are used together to calculate the absolute
0x40DF 0x00 0 – 1023 position, i.e. arctan (Analog 1 / Analog 3). This calculated position is then
used to back-calculate the expected sine and cosine inputs, based on
the Amplitude parameter. If the difference between these expected inputs
(Command Sin/Cos Sensor Angle 2) and the actual inputs (Command
Sin/Cos Sensor Angle) is greater than the set Tolerance voltage for 60 ms,
a fault is issued. This provides a second level of fault detection and triggers
a separate SinCos Command fault.
PCF RIS