A9ASensorOperation2 172
Contents
1. REV DATE 06 18 96 FIFE CORPORATION Post Office Box 26508 Okiahoma City Oklahoma 73126 U S A Phone 405 755 1600 Fax 405 755 8425 NOTE This procedure is not for the SE 16 Procedures for Infrared Sensor A Turn the MODE switch to the MANUAL position or to the SERVO CENTER posi tion if installed B Turn AC power on NOTE If the system has the Servo Center feature the guide should move to the middle of its stroke and stop In the MANUAL position the guide will remain stationary NOTE If there is only one sensor do not attempt to operate the guide in the center guiding con figuration Also a single sensor can be used in either position only if the cable is connected to the proper port on the signal processor NOTE For the A9 series check the setting of the PO LARITY switch S402 on the sensor interface PCB assembly Ensure that the POLARITY switch S402 is in the center OFF position For the A9A series ensure that the POLAR ITY switch S403 is in the OTHERS positon Thread the web through the sensor Ensure that the web is tight and ready to move Loosen the sensor locking knob and posi tion the sensor so the web edge is centered over the sensing area in line with the guide point arrow on the sensor G Secure the sensor locking knob NOTE For center guiding with two sensors repeat steps F and G for the other side of the web H Adjust system sensitivity as follows2. 1 Turn the GAIN control all of the way counterclockwise to its least sensitive position 2 Turn the GAIN control clockwise one fourth turn 3 Adjust the GUIDE POINT control on the panel until the NULL indicator dark ens or both colors of the indicator are dimly illuminated OPERATING INSTRUCTIONS FOR SENSORS CONNECTED TO J7 OR J8 OF THE A9 OR AQA SERIES SIGNAL PROCESSOR OPERATING INSTRUCTIONS NOTE If the web is too far to one side of the guide point the red LED will be illuminated If the web is too far to the other side the green LED will be illuminated If the web is at the guide point both LEDs will be extinguished or dark ened considerably Turn the MODE switch to the AUTO posi tion NOTE The system is now in the AUTO guiding mode and any lateral movement of the web will result in a corresponding correction by the system TO AVOID PERSONAL INJURY SHUT DOWN THE PROCESS LINE DURING THE FOLLOWING PROCEDURE J Check the system sensitivity by slowly passing an opaque piece of material through the sensing area laterally to simu late web movement Turn the GAIN control clockwise to increase sensitivity of the sys tem NOTE if the system overcorrects goes past the guide point or begins to vibrate the GAIN control is set too high To lower the setting turn the GAIN control counterclockwise until the sys tem does not over compensate K If the system has the optional REMOTE GUIDE POINT SHIFT
3. ASSEMBLY control the GUIDE POINT control on the operator panel can be considered to be a coarse ad justment The fine adjustment control is the REMOTE GUIDE POINT SHIFT ASSEM BLY control that is normally located at the delivery end of the process With the web moving adjust the REMOTE GUIDE POINT SHIFT ASSEMBLY control as necessary to meet the requirements of the specific manufacturing operation WHEN THE GUIDE POINT IS SET THE WEB EDGE SHOULD BE NEAR THE CEN TER OF THE SENSING AREA IF THE WEB EDGE IS TOO FAR FROM CENTER THE RESULT COULD BE THAT THE WEB FIG 2 172 PAGE 1 OF 2 IS ADJUSTED OUT OF THE SENSOR RANGE AND THE ABILITY OF THE SYS TEM TO GUIDE WILL BE LOST 2 Changing Sensor Configuration If it is necessary to change a center guide system to the edge guide configuration or change from one edge to the other proceed as follows A Place the MODE switch in the MANUAL po sition B Change the SENSOR SELECT jumper on the MAIN BOARD from 1 to 2 or 2 to 1 C Accomplish the procedures in step 1 NOTE It is necessary to readjust the guide point each time the sensor configuration is changed FIG 2 172 OPERATING INSTRUCTIONS FOR SENSORS CONNECTED TO REV DATE 06 18 96 PAGE 2 OF 2 J7 OR J8 OF THE A9 OR AQA SERIES SIGNAL PROCESSOR
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