Controller Info NVD Failure
system
Description
Configuration is out of range, and the unit shuts down and alarms.
Activation Conditions
Configuration is out of range.
Unit Behavior
Shutdown and alarm.
Reset Conditions
Auto reset only when valid info is entered.
Corrective Actions
1. Check Microprocessor a. Check setpoint setting. Must be between -22 and +90°F (-30 and +32°C). b. Check Functional Parameters. All settings must be valid. 2. Check Software Revision a. Check microprocessor software revision. Upgrade to the latest revision of software. The latest revision may contain Configurations that were not present in older revisions. b. Check Functional Parameters. All settings must be valid. Send desired settings to microprocessor using the latest version of TRU-Tech or a USB data transfer device. (Do NOT use the display mounted keys.) c. Check Configurations. All settings must be valid. Send desired settings to microprocessor using the latest version of TRU-Tech or a USB data transfer device. (Do NOT use the display mounted keys.) 3. Reset Microprocessor a. Place the START/RUN-OFF switch in the OFF position. Disconnect negative battery cable, remove F1 fuse, wait 20 seconds and reinstall. Then place the START/RUN-OFF back in the START/RUN position. The microprocessor powers up OK and the latest setpoint appears in the display. b. If this alarm remains active, download data and replace the Micro Stepper Module (MSM). Refer to Section 5.5.