Curtis PMC 1297 Manual
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— PROGRAMMABLE SHARED PARAMETERS: Hourmeters
Three hourmeters are built into the 1297 controller, each with non-volatile memory:
• a total hourmeter, that measures the total operating time (KSI on-time),
• a traction hourmeter, that measures the traction motor on-time, and
• a pump hourmeter, that measures the pump motor on-time.
Each of these three hourmeters has a corresponding service timer and disable timer.
Hourmeter information is viewable via the Spyglass display.
For each hourmeter, the service timer is used to set the time before scheduled
maintenance is due. When the set service time expires, the disable timer starts and
the service timer resets. If the disable time expires before the scheduled maintenance
is performed, the controller defaults to the set disable speed.
The 1297 controller is shipped from the factory with each of its three hourmeters
preset to 0. If the controller is being installed in a new vehicle, these presets do not
need to be adjusted. If the controller is being installed in a “used” vehicle, however,
it may be desirable to transfer the existing hourmeter values to the new controller. To
do this, the existing decimal hourmeter values must be converted to 8-bit binary
values, as follows.
ADJ HOURS HIGH
The
adjust hours high
parameter is used to adjust the high byte of the
hourmeter preset; it can be set from 0 to 151. To calculate this value, divide the
desired hours by 6,553.6 and enter the integer portion of the result for the
Adjust Hours High value.
ADJ HOURS MID
The
adjust hours middle
parameter is used to adjust the middle byte of the
hourmeter preset; it can be set from 0 to 255. To calculate this value, multiply
the Hours High value by 6,553.6, subtract the result from the desired hours,
divide by 25.6, and enter this integer value for the Adjust Hours Middle value.
ADJ HOURS LOW
The
adjust hours low
parameter is used to adjust the low byte of the hourmeter
preset; it can be set from 0 to 255. To calculate this value, subtract the Hours
Middle integer value from the total Hours Middle value (in other words, take
the remainder), multiply by 256, and enter this integer value for the Adjust
Hours Low value.
Hourmeter Parameters
Hourmeter “Preset” Settings