Usage:
Light Emitting Diodes (LED)
Typical View Of The SW 50-03 Setpoint Adjuster Light Emitting Diode (LED)
Refer To The Following Chart On Switch Identification For The Light Emitting Diodes (LED)
Adjustment Of Potentiometers And Switches
Adjustment Potentiometers And Switches
Refer To The Following Chart On Switch Identification For The Adjustment Of Potentiometers And Switches
Auxiliary Equipment
SV6-KG-2G Test Plug
NOTE: If the Boost Pressure Dependent Fuel Limitation application is NOT needed, the SV6-KG-2G Test Plug is NOT needed. The Heinzmann Tester can be connected directly to the KG30 Governor Control Unit.
In order to adjust the SW 50-03 Setpoint Adjuster, the Heinzmann Tester and the wiring harness for the KG30 Governor Control Unit are required. The SV 6-KG-2G (MS 3102-A12S-3S or equivalent) Test Plug with approximately 0.5 m (1.64 ft) of cable is required to connect the Heinzmann Tester to the SW 50-03 Setpoint Adjuster. If the Boost Pressure Dependent Fuel Limitation is NOT utilized, the Heinzmann Tester can be connected directly to the KG30 Governor Control Unit without using the test plug.
NOTE: A digital voltmeter can be used for setting the fuel limits. The digital voltmeter can be connected to the KG30 Governor Control Unit at TP6 and OV (feedback voltage).
Basic Setting
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During adjustment, the engine MUST NOT be started. If the engine is started, it will run up to overspeed. Engine overspeed could result in damage to equipment and/or personal injury. |
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NOTE: A voltage and/or current supply and a pressure transducer are needed for the basic setting.
1. Remove the pickup cable from terminal 7 and 8 of the SW 50-03 Setpoint Adjuster and connect the special connector of the previous section to terminals 7 and 8. Terminal 7 goes to pin B, and terminal 8 goes to pin A.
2. Connect the PG 01 Heinzmann Tester cable to the special connector and the brown wire with the clip to pin TP6 of the KG30 Governor Control Unit.
3. Set the selector switch on the Start Fuel Limiter board inside of the KG30 Governor Control Unit to the OFF (position 2 or 3).
4. Set the fuel limit selector (S1) on the SW 50-03 SetPoint Adjuster board to the MAXIMUM FUEL LIMIT position. Turn the Maximum Fuel Limit potentiometer (P10) 20 turns CW.
5. Turn on the power to the KG30 Governor Control Unit and to the Heinzmann Tester.
6. Link terminals 24 and 25. The HAND SPEEDSETTING LED, D5 should be ON.
7. Turn the Hand potentiometer to the maximum CW end stop and adjust the Governor Maximum Speed (N-Max) potentiometer on the KG30 Governor Control Unit to the desired HIGH speed limit.
8. Bring the Hand potentiometer to the CCW end stop position and adjust the KG30 Governor Control Unit Minimum Speed (N-min) potentiometer to the desired LOW speed limit.
9. Recheck the MAXIMUM and MINIMUM limits as necessary.
Remote Speed Setting
1. Remove links 24 and 25 the Remote Speed Setting LED will light.
- * Terminal 20 to signal plus.
- * Terminal 21 to signal minus.
- * Terminal 19 to deliver +24V supply.
- * Terminal 21 to signal minus.
2. If a 3 terminal pressure transducer is used, connect as follows:
- * Terminal 20 to signal plus.
- * Terminal 19 to +24V supply.
3. If a 2 terminal pressure transducer is used (4P-4621, 4P-7426), connect as follows:
NOTE: Connect an external link from terminal 21 to terminal 23 when using a pressure transducer.
- * Terminal 20 to signal plus.
- * Terminal 21 to signal minus.
4. If the remote control signal is from a Combinator (4-20mA signal source) connect as follows:
NOTE: Terminal 19 must be disconnected. Do not link terminal 21 and terminal 23 (otherwise the isolation of the input signal is lost).
5. Feed 4mA into the remote speed setting input terminals and turn the Minimum Limit potentiometer (P1) until the LED just lights.
6. Start the PG01 simulator and adjust the Minimum Speed potentiometer (P2) to the same speed as was done in the hand operation.
7. Feed 20mA (or maximum signal) into the Remote Speed Setting terminals and adjust to the required maximum speed by turning the maximum speed pot (P3). If the expected frequency can not be reached because the Maximum Limit function starts working (LED D3 comes ON), turn the Maximum Limit pot (P4) CCW until the LED is OFF. Then do the correct adjustment.
8. In order to set the maximum limit, turn the pot (P4) in the CW direction until the LED D3 just comes on. Notice that the adjusted Maximum speed is changed by setting the limit. Repeat both adjustments in order to obtain the desired maximum speed and also maximum limit.
9. Check over the entire range. Verify that the Above Maximum Input signal and the Below Maximum Input signal does not cause a speed change.
Setpoint Value Delay/Speedramp
1. Preset the maximum speed by setting the Hand Speed Setting potentiometer to the fully CW position or by using the maximum 4-20mA input signal.
2. Close terminals 26 and 27 in order to force the KG30 Governor Control Unit to LOW IDLE and observe the time delay from MAXIMUM to MINIMUM speed. Remove the link to observe the time delay in the opposite direction.
3. Set the desired delay time by means of (P5) potentiometer (setting the range approximately 10 to 30 seconds). Notice that adjusting the Speed Ramp potentiometer has a small influence on speed adjustment. N-min and N-max may require reset.
4. Notice the UP and DOWN LED's located near the Speed Ramp adjustment potentiometer. The UP LED light is on when there is no external switch closure on terminals 26 and 27. The DOWN LED light is ON when the external switch on terminals 26 and 27 is closed for the Idle Speed Setting.
Wiring Diagram
5. If the Setpoint Value Delay is not desired, the resistors R65 and R69 must be exchanged (68 kohm instead of 681 kohm). With this change, the speed ramp is reduced to 1 to 3 seconds which is practically ineffective.
Boost Pressure Dependent Fuel Limitation
NOTE: When setting the Boost Pressure Dependent Fuel Limitation, the TURN ON delay of the limitation must be observed. After turning on the Heinzmann Tester wait approximately 30 seconds before making adjustments.
1. Select the Hand Speed Setting mode by connecting a link between terminals 24 and 25. Turn the hand potentiometer fully CW in order to produce a high speed setting.
2. Supply a low frequency (1000Hz) from a frequency generator to terminals 7 and 8 of the SW 50-03 Setpoint Adjuster. The KG30 Governor Control Unit will call for FULL FUEL since the speed setting is higher than the speed signal. If a frequency generator is not available, terminals 17 and 18 can be linked to override the fail-safe causing the KG30 Governor Control Unit to go into FULL FUEL.
3. Turn switch (S1) to Boost Pressure Dependent Fuel Limitation.
NOTE: The Start Fuel Limit in the KG30 Governor Control Unit is still turned OFF for this portion of the adjustment procedure. Under normal STARTUP conditions, the Boost Fuel Limit function is inactive for 20-30 seconds so that the Start Fuel Limit can be effective during STARTUP.
4. Turn the Maximum Limit potentiometer (P9) 20 times CCW. Turn the Minimum Pressure and Maximum Pressure potentiometers (P7) and (P8) each 20 time CW.
5. Supply 4mA (Minimum Boost Pressure) into terminals 31 and 32 and adjust the Minimum Limit potentiometer (P6) until the LED (D8) just lights up.
6. Turn the Minimum Pressure potentiometer (P7) until the desired MINIMUM ACTUATOR fuel position is reached.
* Example: 55 percent on the Actuator Terminal Shaft indicator or 3.42 Volts on TP6 pin of the KG30 Governor Control Unit.
7. Supply 8mA and turn the Maximum Pressure potentiometer (P8) until the 100 percent ACTUATOR position is reached.
8. Turn the Maximum Limit potentiometer CW until LED (D9) just comes on (maximum limit).
9. Check over the entire range. Verify no fuel change takes place on above Maximum Boost Pressure and below Minimum Boost Pressure.
Maximum Fuel Limit
1. Turn switch (S1) to Maximum Fuel limitation.
2. Turn the potentiometer (P10), 20 times CW.
3. Preset the maximum speed by turning the Hand Speed Setting potentiometer fully CW.
4. Turn (P10) CCW until the maximum fuel setting is reached (either percentage of actuator travel or voltage on TP6 of the KG30 Governor Control Unit).
NOTE: Step 4 is the equivalent to the Mechanical Fuel Rack Stop.
Start Fuel Limit
1. If used, remove the signal generator from terminals 7 and 8. Set the selector switch on the Start Fuel Limit board of the KG30 Governor Control Unit to position 4.
2. Link terminals 17 and 18 in order to override the governor fail-safe.
3. Adjust the potentiometer on the Start Fuel Limit board of the governor to the required START fuel position (either a percentage of actuator travel or voltage on TP6 KG30 Governor Control Unit).
4. When the adjustment is complete, remove the link from terminals 17 and 18.
Load Sharing Tandem Operation
NOTE: SW 50-03 terminals 12 and 13 of the two engines with a common gear box have to be cross wired between engines. These two wires give an automatic master/slave selection. The first closed clutch contact selects the master engine. Engine number two will then be the slave after closing clutch contact two. In the same moment when clutch two has been closed, Boost Pressure Limitation of the slave engine is switched OFF and both actuators will follow the master governor. Since the principle of operation follows the idea of equal fuel rack positions of both engines, make sure that both have similar feedback voltage adjustments and linkages. This determines the accuracy of the desired equal fuel or horsepower matching.
NOTE: When Load Sharing, feedback of the KG30 Governor Control Unit has to be set to a higher accuracy. Refer to the following chart on Settings For Higher Accuracy In Load Sharing (Tandem Engine Operation).
NOTE: The following adjustments are made with the engine running. As a first step, the linkage adjustments must be checked during individual operation. For Zero Load and Full Load, the fuel signal of the respective actuators should indicate identical values. The feedback voltages of the actuators must coincide on Zero Load and on Full Load. If differences are observed, the linkage of one engine has to be corrected. See the following steps and the following illustration.
Diagram
1. With the fuel rack adjusted to some mid position on the first engine, jumper terminals 10 and 11. The Master LED on that unit should come on.
2. Jumper terminals 12 and 18 on the SW 50-03 Setpoint Adjuster of the second engine in order to cause it to go to Full Fuel.
3. Jumper terminals 10 and 11 of the second engine (in order to simulate clutch closure). This should cause the Slave light to come on. The fuel position of the second engine as a slave should now match the first engine which is the master. For protection of the clutch, a TURN ON delay is preset at .5 to 1 second.
4. Remove all jumpers before proceeding.
Putting Engine Into Operation
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An engine, turbine, or any other type of power plant MUST be equipped with a separate overspeed, overtemperature, overpressure shutdown device. The shutdown device MUST operate independently of the electronic governor. Engine overspeed could result in damage to equipment and/or personal injury. |
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1. Ensure that all jumper wires used during the setup are removed.
2. Connect the Magnetic Pickup to terminals 7 and 8 of the SW 50-03 Setpoint Adjuster.
3. Start the engine and make sure all functions work as expected.