Milnor BICWUT01 Troubleshooting Manual Download Page 5

PELLERIN MILNOR CORPORATION

1.

Verify Programmed Speed

Verify that the machine is programmed correctly. The desired basket speed is programmed on the

second page of each wash formula step.

Display or Action

Explanation

 

P

Insert the programming key into the 

Run/Program

 keyswitch

and turn the key 1/4 turn to the right. This accesses the 

Program

Menu

.

  PROGRAM  

0

  MENU

 

OK TURN KEY TO RUN

Program Menu

 item 

0

 indicates that it is safe to turn the key to

the 

Run

 position. If you make any changes to a wash formula or

machine configuration, do not turn the key to the 

Run

 position

unless this menu item is displayed.

 

^

Press the up and down arrow keys to select other items from the

Program Menu

.

Display or Action

Explanation

  PROGRAM  

1

  MENU

 

ADD/CHANGE FORMULA

Select 

Program Menu

 item 

1

 to view the programmed steps in

the wash formula.

 

u

Press 

Enter/Next

 to confirm your selection and prompt for the

desired wash formula number,

 or

 

c

press 

Cancel/Escape

 to return to 

Program Menu

 item 

0

.

Display or Action

Explanation

ADD/CHANGE FORMULA

0

0

This display prompts for the number of the formula in which the

error occurs. If the error appears in several formulas, only one

needs to be verified.

 

0

1

Enter the formula number. An incorrect formula number can be

changed at the next display.

ADD/

CHANGE

 FORMULA

0

1 FORMULA 01

The cursor flashes on “CHANGE” and the first digit of the

number for any existing formula. “ADD” flashes if the formula

does not exist, prompting you to program a new formula.

If the selected formula is not correct, enter another formula

number at this display.

 

u

Confirms the selected formula and advances to the next display.

F01 FORMULA 01

S01 

0

0 STEP 01

The cursor flashes on the first character of the name for step 01.

 

u

Accepts the formula name and advances to the overview display

for step 01.

F01 TMMQFFFHC3WLL  S

S01 2050150133110  0

The overview display for step 01. Notice that there is no cursor

flashing.

 

u

Advances to the step decisions for step 01.

Summary of Contents for BICWUT01

Page 1: ...0050118 Access Date 20050118 Depth detail Applicability CWU Language Code ENG01 Purpose publication Format 1colA Document Troubleshooting Basket Speed Errors on Single motor Washer extractors PELLERIN MILNOR CORPORATION POST OFFICE BOX 400 KENNER LOUISIANA 70063 0400 U S A ...

Page 2: ......

Page 3: ... digital signal from the processor board to an analog voltage of 0 to 10 volts and sends it to the inverter The speed at which the inverter drives the motor is directly related to the voltage output of the D to A board 5 The inverter interprets the voltage from the D to A board and adjusts the voltage and frequency of the motor supply to drive the motor at a different speed 6 The motor speed chang...

Page 4: ... desired speed C Contact Milnor for updated software 5 Section 4 Does D to A output voltage at D to A board match desired speed D Replace D to A board 6 Section 4 Does D to A voltage at inverter match desired speed E Check wiring from D to A board to inverter 7 Section 5 1 Does inverter output frequency match input voltage F Review inverter parameters and contact Milnor Customer Service 8 Section ...

Page 5: ...rompt for the desired wash formula number or c press Cancel Escape to return to Program Menu item 0 Display or Action Explanation ADD CHANGE FORMULA 00 This display prompts for the number of the formula in which the error occurs If the error appears in several formulas only one needs to be verified 0 1 Enter the formula number An incorrect formula number can be changed at the next display ADD CHAN...

Page 6: ...ers are incorrect the inverter will not work as expected The procedure for verifying the inverter parameters varies among inverters but is described in detail in the documentation provided by the inverter manufacturer Replacement manuals for several inverter models are available at http www drives com Inverter constants for specific inverters and Milnor machine models are available in the Customer...

Page 7: ...to fill with cold water C 1 to a low level LL 04 5 Program no chemical injection CC 00 6 Program the speed in RPMs e g RPM 018 that is used in the erroneous production formula 7 Program the basket On time to 20 seconds XXX 020 and the basket Off time to 3 seconds YYY 003 8 End the formula E 0 Use the formula created in Supplement 1 or a similar formula to evaluate other possible sources of the pro...

Page 8: ...t calculated basket speed Input output board 1 determines the time between each main pulley spoke passing the photoeye and reports this data to the processor board at each communication cycle which is usually more often than once per second The processor board filters the raw data from the input output board and displays the most recent valid value Tip Large variations in the achieved RPM value ar...

Page 9: ...inals FV and FC on the inverter shown in Figure 2 should match this number You may see a small voltage drop from the D to A board to the inverter Figure 2 Measuring Control Voltage at D to A Board and Inverter Digital to Analog Board Legend A MTA 43 Pin 3 B MTA 43 Pin 8 C Inverter terminal A1 D Inverter terminal AC E Inverter terminal FV F Inverter terminal FC Inverter Analog Terminals for Yaskawa...

Page 10: ...similar to one of the illustrations in Figure 3 Figure 3 Typical Inverter Run Displays Yaskawa GPD 506 Model Yaskawa F7 Model Legend A Desired frequency B Actual frequency C Actual amps The specific procedure for viewing the inverter operating parameters varies among inverter models For Yaskawa F7 models the actual and desired frequencies and the actual amperage are visible on the normal operating...

Page 11: ...PELLERIN MILNOR CORPORATION 6 Testing the Motor If the procedures described earlier in this document do not eliminate the error have the motor tested by a reputable facility End of BICWUT01 ...

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