Curtis 1222 - Generic AC Traction Controller Software

Curtis 1222 Manual, os 15
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2 9 J A N U A R Y 2 0 1 3 D R A F T
6 — INTERFACE WITH MASTER
GENERIC AC TRACTION CONTROLLER SOFTWARE
Review your application’s needs carefully to ensure they are met by the condi
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tions described below and the signal flow diagram presented in Figure 17. If
they are not, contact your local Curtis representative for assistance in recon
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figuring the software.
The bulleted items below are based on AC_Traction_with_1222.vcl software
features description for VCL App Version = 2.00.
• The 1222 software is limited to traction applications that use Speed
Mode or Speed Mode Express. If your AC controller uses Torque Mode,
you will need to make changes in the software. Contact your local Curtis
representative.
• You must use 1222 software version OS 13.0 or later; earlier versions will
not work.
• Steering CAN Comm Failure (AC controller fault code 51) is set when:
– AC controller is unable to receive a CAN heartbeat from
the 1222 on startup
– neither PDO1_MISO nor PDO2_MISO arrives within 50 ms
(PDO Timeout)
– redundant 1222 CAN data (from PDO1_MISO and
PDO2_MISO) mismatches for more than 100 ms.
• Severe Steering Fault (code 52) is set when the traction fault action sent
from the 1222 to the AC controller (in either a PDO1_MISO or an
emergency message) indicates Stop Traction (=1).
• Steering Fault (code 53) is set when the traction fault action sent from
the 1222 to the AC controller (in either a PDO1_MISO or an emergency
message) indicates Reduce Traction Speed (=2) or No Action (=3).
• The generic AC traction controller software contains a traction speed
reduction map with the wheel position angle at different forward and
reverse maximum speeds.
• PDO1_MOSI messages are sent every 40 ms; if you want a different
frequency, you will need to change the AC traction controller software.
• The 1222 Traction Cutback (from PDO1_MISO) will reduce the trac
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tion speed by reducing the throttle command. This method of traction
speed reduction means that the traction Emergency Reverse function
will not be speed-reduced by the 1222 Traction Cutback data.
Note: The AC controller’s Analog Output (pin 30) can be connected to the
Curtis 1165 wheel position indicator to display the 1222 wheel position from
PDO1_MISO.
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IMPORTANT