Class1 3041-10X-00-CL1 - Sentry Governor - EXTERNAL - Manual (Page 20)

FORM-ENG-0018 REV A 05-27-03
607 NW 27th Ave
Ocala, FL 34475
Ph: 352-629-5020 or 1-800-533-3569
Fax : 352-629-2902 or 1-800-520-3473
TECHNICAL DATA SHEET
PAGE
19 OF 36
DATE 6/19/2014
PRODUCT GROUP THROTTLE CONTROL P/N 3045-101-00-CL1, 3045-102-00-CL1 REV 1.02
PRODUCT SENTRY PRESSURE GOVERNOR BY AMS
For example: The SENTRY is maintaining the operator’s desired engine speed of 1100 RPM (at a discharge
pressure of 100 PSI). The discharge pressure increases to 160 PSI (e.g. a discharge line was closed) and the
SENTRY decreases the engine RPM until the discharge pressure is reduced to 150 PSI (50 PSI differential).
5.3.5. Communication with engine is lost
The SENTRY receives engine RPM data via CAN communication (PGN 61444, SPN 190). The SENTRY displays
this warning message after not receiving the RPM data for 4 or more seconds.
Note: If the SENTRY is configured for a CAN control and this warning message is active due to a CAN bus
problem, then the control of the engine RPM cannot be certain since the engine ECU may not receive engine
speed request data from the SENTRY.