Hydraulic Driven Generator
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| Illustration 1 | g01597013 |
Power Distribution (1) "B+" from main circuit breaker (2) Engine circuit breaker (3) Circuit breaker for the operator ECM (4) Circuit breaker for the machine ECM (5) "B+" from main relay (6) Auxiliary circuit breaker (7) Machine ECM (8) CAN resistor (9) Hydraulic driven generator (if equipped) (10) Operator control unit (11) Hydraulic generator relay (12) Generator control solenoid (13) Generator control switch (14) Engine ECM | |
The auxiliary circuit breaker receives power when the main power relay is energized. The 111-YL wire distributes power from the auxiliary circuit breaker to contact "85" and to contact "87" of the hydraulic generator relay.
When the generator control switch is in the ON position, the operator control unit reads a complete circuit at terminal "J2-29". In this situation, the operator control unit sends a signal via the Cat Data Link to the machine ECM. In this case, the machine ECM sends an engine speed request to the engine ECM through the Cat Data Link. When the generator is on, the engine ECM operates the engine at 1275 rpm. When the generator switch is in the ON position, the machine ECM also sends a ground signal from terminal "J2-9" to contact "86" of the hydraulic generator relay. This ground signal energizes the coil of the hydraulic generator relay.
When the hydraulic generator relay is energized, power is transferred from the auxiliary circuit breaker to the hydraulic generator solenoid. When the hydraulic generator solenoid is energized, hydraulic oil is directed to the generator motor. The generator motor turns the generator.
When the tool enable switch is in the ON position, terminal "J1-63" of the machine ECM is connected to ground. In this case, the machine ECM prompts the engine ECM to maintain the engine speed at 1100 rpm. This engine speed maintains an electrical outlet frequency of 50 ± 3 Hz.
Belt Driven Generator
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| Illustration 2 | g01597014 |
Power Distribution (1) "B+" from main circuit breaker (2) Engine circuit breaker (3) Circuit breaker for the operator ECM (4) Circuit breaker for the machine ECM (5) "B+" from main relay (6) Auxiliary circuit breaker (7) Machine ECM (8) Belt driven generator (if equipped) (9) Operator control unit (10) Line that is connected to the RED wire that goes into terminal "E+" of the circuit board (11) Line that is connected to the terminal marked "E+" on the terminal board (12) Engine ECM (13) Generator control switch (14) Tool enable switch | |
The auxiliary circuit breaker receives power when the main power relay is energized. The 111-YL wire distributes power from the auxiliary circuit breaker to contact "85" of the generator relay.
When the generator control switch is in the ON position, the operator control unit reads a complete circuit at terminal "J2-29". In this situation, the operator control unit sends a signal via the Cat Data Link to the machine ECM. In this case, the machine ECM sends an engine speed request to the engine ECM through the Cat Data Link. When the generator is on, the engine ECM operates the engine at 1275 rpm. When the generator switch is in the ON position, the machine ECM sends a ground signal from terminal "J2-9" to contact "86" of the generator relay. This ground signal energizes the coil of the generator relay.
When the generator relay is energized, terminal "E+" on the generator terminal board is connected to terminal "E+" on the generator circuit board. This completes the circuit for the generator excitation current and this causes the generator to produce power.
When the tool enable switch is in the ON position, terminal "J1-63" of the machine ECM is connected to ground. In this case, the machine ECM prompts the engine ECM to maintain the engine speed at 1100 rpm. This engine speed maintains an electrical outlet frequency of 50 ± 3 Hz.
Generator (25 kW)
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| Illustration 3 | g01597015 |
Circuit Breaker Panel (1) Circuit breaker panel (2) Auxiliary power panel (240 VAC option) (3) Auxiliary power panel (120 VAC option) (4) AC generator (5) Machine to screed connector | |
The generator provides power to the circuit breakers in the circuit breaker panel for the generator. The circuit breaker panel is equipped with four 20 amp GFCI circuit breakers and one 25 amp GFCI circuit breaker. Each of the 20 amp GFCI circuit breakers distributes power to a screed heating element. The 25 amp GFCI circuit breaker distributes power to the auxiliary power panel.
The auxiliary power panel is equipped with two outlets that provide power for tools and auxiliary equipment. The two outlets may be configured to provide 210 VAC at 50 Hz or the two outlets may be configured to provide 105 volts AC at 50 Hz. A circuit breaker on the generator limits current to 25 amp.