Generator Set Control Panel for Switchgear Conversion Caterpillar


Cycle Crank

Usage:

3412C 4BZ
The control board provides the automatic cycle crank function for the 3412 PEEC and the 3412/3500 MUI engines.


Illustration 1g00728635

"ELECTROMEC8" CONTROL BOARD

(1) "DT" Potentiometer

(2) "CYTON" Potentiometer

(3) "CYTOFF" Potentiometer

(4) Switch 2

(5) "OSSET" Potentiometer

(6) Switch 1

(7) "LOCAL" Indicator

3412 PEEC And 3412/3500 MUI Cycle Crank

The control board is factory set for 3 attempts with a 10 second crank and a 10 second rest. On the control board, the duration timer (DT) and the cyclic timer (CYT) control the cycle crank time. If necessary, adjustments can be made to three potentiometers in order to adjust the cycle crank time.

"CYTON" potentiometer (2) - 0.3 seconds to 24 seconds crank time

"CYTOFF" potentiometer (3) - 0.3 seconds to 24 seconds rest time

"DT" potentiometer (1) - 8 seconds to 110 seconds crank duration time

As a minimum, the duration time must equal the sum of the crank time and the rest time for the desired number of cranks. For example, the factory default is 10 second crank time, 10 second rest time and 53 second duration time. This duration time will allow the following crank times: three complete 10 second cranks and a 10 second between-crank rest.

See Testing And Adjusting, "Cycle Crank - Adjust" for the cycle crank adjustment procedure.

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