Jackson CREW 44S, CREW 66S manual PLC1, PLC2, Technical Manual TROUBLESHOOTING, Light Configuration

Technical Manual (07610-003-78-18)

TROUBLESHOOTING

UTILIZE THESE SCREWS

FOR PLC REPLACEMENT

INPUTS

STATUS

INDICATING

LIGHTS

RUN TOGGLE

SWITCH

OUTPUTS

UTILIZE THESE SCREWS

FOR PLC REPLACEMENT

Green LED lights are illuminated on the PLC when in operation. The POWER, OK & RUN lights indicate that 24VDC power is available to the PLC and that is functioning properly. If the RUN light is out, first check that the RUN toggle switch located behind the snap cover panel of the PLC is in the RUN position. Less likely is that the opera- tional program of the PLC may have been corrupted or lost. Tempo- rary power surges may have occurred. Secure all power to the ma- chine, wait for 30 seconds and restore power. Verify that the Green light is illuminated to the 24vdc power supply immediately to the left of the PLC. If the RUN light is still off, replace the PLC.

Refer to the illustration below for the designation of each LED. PLC1 is used for the 44” Electric & Steam units. An expansion PLC (PLC2) is used in conjunction with PLC1 for 66” Electric & Steam units.

Inputs correspond to the connections behind the top flip up panel of the PLC and are marked I1 thru I8. Outputs correspond to the con- nections behind the bottom flip up panel of the PLC and are marked Q1 thru Q8.

Note: All outputs are fused. Q1 & Q2 outputs for both PLC’s utilize 1.0 Amp fuses and Q3-Q8 outputs utilize 0.75 Amp fuses. When illuminated , the LED lights on the front of each PLC will show the input from and the outputs to various components as illustrated below. LED’s that may illuminate on PLC2 that are marked “NOT USED” have no bearing on the operation of the current ware-washers.

PLC1

LIGHT CONFIGURATION

	1	2	3	4
PWR	INPUTS
	5	6	7	8
RUN
	1	2	3	4
OK	OUTPUTS
	5	6	7	8

INPUTS:

1.ON/OFF SWITCH

2.DOOR SWITCH SAFETY INTERLOCKS

3.RACK INLET SWITCH

4.FINAL RINSE SWITCH

5.LOWER WASH FLOAT SWITCH

6.UPPER WASH FLOAT SWITCH

7.MANUAL / DELIME SWITCH

8.N/A

OUTPUTS:

1.RINSE SOLENOID / RINSE SIGNAL RELAY

2.WASH TANK FILL SOLENOID

3.DRIVE MOTOR CONTACTOR

4.WASH MOTOR CONTACTOR

5.WASH HEATER CONTACTOR or STEAM HEAT RELAY

6.VENTILATION FAN RELAY

7.N/A

8.SIDE-LOADER SWITCH (ON WITH NO RACK PRESENT)

PLC2

LIGHT CONFIGURATION

	1	2	3	4
PWR	INPUTS
	5	6	7	8
RUN
	1	2	3	4
OK	OUTPUTS
	5	6	7	8

INPUTS:

1.LOWER PRE-WASH FLOAT SWITCH (66 UNITS ONLY)

2.UPPER PRE-WASH FLOAT SWITCH (66 UNITS ONLY)

3.N/A

4.N/A

5.N/A

6.N/A

7.N/A

8.N/A

OUTPUTS:

1.PRE-WASH TANK FILL SOLENOID (66 UNITS ONLY)

2.PRE-WASH MOTOR CONTACTOR (66 UNITS ONLY)

3.N/A

4.N/A

5.N/A

6.N/A

7.N/A

8.N/A

Page Created: 05‐04‐2010

Revised: 02‐25‐2011

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