Curtis 1222 Manual, os 15
49
2 9 J A N U A R Y 2 0 1 3 D R A F T
3 — PROGRAMMABLE PARAMETERS: Motor Parameters
MOTOR: TEMPERATURE CONTROL
ALLOWABLE
PARAMETER RANGE DESCRIPTION
Sensor Enable On / Off The Sensor Enable parameter can be used only if a temperature sensor
0x403C 0x00 On / Off has been properly configured in the steering motor. When Sensor Enable
is programmed On, the motor temperature cutback feature and the motor
temperature compensation feature are enabled.
The motor temperature cutback feature will reduce traction speed
between the Temperature Hot and Temperature Max setpoints, but it will
not inhibit the 1222 steering.
The motor temperature compensation feature will adapt the motor
control algorithms to varying motor temperatures, for improved efficiency
and more consistent performance.
Sensor Type 0 –
5 The following sensor types are predefined in the software.
0x4085 0x00 0 – 5
Type 0 User-defined sensor
Type 1 KTY83–122
Type 2 2 × Type 1 in series
Type 3 KTY84-130 or KTY84-150
Type 4 2 × Type 3 in series
Type 5 PT1000
Custom sensor types can be set up if none of the predefined types is
appropriate for your application. Sensor Type 0 is for a user-defined motor
temperature sensor; see menu on the next page for the user-defined
parameters that must be configured for Type 0 sensors.
Note: The industry standard KTY temperature sensors are silicon
temperature sensors with a polarity band; the polarity band of a
KTY sensor must be connected to I/O ground (pin 7).
Sensor Temp Offset -20.0 – 20.0 °C Often the sensor is placed in the motor at a location with a known offset to
0x4064 0x00 -200 – 200 the critical temperature; the offset can be corrected with this parameter.
The
parameter can also be used to correct a known offset in the sensor itself.
Temperature Hot 0 – 250.0 °C Defines the temperature at which traction speed cutback begins. The cut
-
back
0x40AC 0x00 0 – 2500 is linear between the Temperature Hot and Temperature Max setpoints.
Temperature Max 0 – 250.0 °C Defines the temperature at which traction speed is cut back to the speed
0x40AD 0x00 0 – 2500 defined by the Sensor Fault Traction Cutback parameter.
Sensor Fault Traction Cutback 0 – 100 % Defines the amount of traction speed cutback that will result from a sensor
0x40BD 0x00 0 – 100 fault.
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