Class1 119327 - VDR system 118093 118097 118551 118620 119375 - EXTERNAL - Manual (Page 14)

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 : 352-629-290 or 1-800-520-3473
PRODUCT MANUAL
PAGE 13 OF 26
DATE 10/17/2011
PRODUCT GROUP ES-Key P/N 119914, 118093, 118620, 118551, 119375 REV 1.70
PRODUCT Vehicle Data Recorder and Seat Belt Warning system BY AMS
5.4. Vehicle Data Recorder (p/n 119914)
The Vehicle Data Recorder saves a continuous loop of 100 engine hours of
second-by-second time and date stamped data as directed by NFPA.
 Vehicle
speed (SAE CAN message)
 Engine
RPM (SAE CAN message)

Throttle position (SAE CAN message)
 Vehicle
acceleration (derived from vehicle speed)
 Vehicle
deceleration (derived from vehicle speed)

ABS events (SAE CAN message)

Master warning input (physical input – pin 8)

Park brake input (physical input – pin 5)

Seat and seat belt status (Seat belt warning CAN message)
The recorded data can be retrieved by using the VDR Management Software
(see section 4.1.2).
5.4.1. Alarm operation
An external alarm connected to the Vehicle Data Recorder is used to alert the vehicle operator to seat belt
violations and Vehicle Data Recorder error conditions.
The VDR has two outputs for external alarm use and both are switched. Pin 7 is switched positive vehicle voltage
and pin 6 is switched ground. The two outputs are activated simultaneously so any of the three alarm connection
methods below may be used.
A. S EAT BELT VIOLATION ALARM
The Vehicle Data Recorder will beep the alarm at one second intervals when it receives a seat belt violation or
sequence violation (see section 5.1) while the park brake input (pin 5) is turned OFF.
B. VDR ERROR CONDITION ALARM
The Vehicle Data Recorder will beep the alarm ten (10) times very quickly during a new power cycle to indicate that
an internal error has been detected. The VDR will then pulse the alarm once, twice, or three times to indicate the
specific error condition.
ALARM
PULSES
ERROR DESCRIPTION
1 Not receiving CAN messages.
The Seat Belt Warning CAN bus (pins 2, 11) or the
Engine/Transmission CAN bus (pins 4, 9) may have a wiring
problem. Use the VDR’s diagnostic LEDs to determine which bus is
causing the error condition (see section 5.4.2).
2 Internal memory read/write error.
The VDR is having difficulty reading or writing from memory and
may not be able to record the required NFPA data.
3 Internal clock error.
The internal real time clock is not advancing and will cause time
stamped data to be inaccurate.