Curtis 1226 - 8 - DIAGNOSTIC AND TROUBLESHOOTING; PROGRAMMING DEVICE DIAGNOSTICS

8 — DIAGNOSTIC AND TROUBLESHOOTING
Curtis Model 1226 – September 2019
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8 — DIAGNOSTIC AND TROUBLESHOOTING
e 1226 controller provides diagnostic information to help technicians troubleshoot drive system
problems. You can view the diagnostic information using Curtis programming devices and the
controller’s status LEDs.
For information on programming devices, see page 90.
PROGRAMMING DEVICE DIAGNOSTICS
e programming devices display diagnostic information in two menus:
• Real-time data such as the statuses of inputs and outputs are displayed in the Monitor
menu. See page 56.
• Active faults and a history of faults are displayed in the Diagnostics menu.
For example, Figure 13 shows that the HPD/Sequencing and Parameter Change faults are active.
Note: Checking and clearing the fault history is recommended each time the vehicle is brought in
for maintenance.
Figure 13
Diagnostics Menu
Faults