VC3500/VC3700 Troubleshooting Manual
Valco Cincinnati
Page 27
Glue Inspection Master Logic
U9 (87C51) provides the interface between the CPU board and the Glue Inspection Channel
Logic I.C.’s. It also controls any common outputs such as Machine Stop, Glue Light, Jam
Light, Horn, and Kicker/Marker signals. This chip may me monitored by first installing JP5
to enable serial communications, then attaching an Irton data display to connector JP4.
Pattern data from the CPU board is input into the first five pins of Port 1 (signals JP/SL0,
JP/SL1, JP/SL2, JP/SL3, JP/SL4). Other signals used by this I.C. from the CPU board are
MIN_SPD and ENCODER.
Glue Inspection Channel Logic
U10 (87C51) provides the Glue Inspection Channel Logic function for Channel 1. U11
(87C51) provides the Glue Inspection Channel Logic function for Channel 2. Product Sensor
and Glue Sensors are inputs to these devices. Pass and Fail LED’s located on the front panel
for each channel are controlled by these devices. Glue parameters are received from the
CPU board via the Glue Inspection Master Logic IC (U9).
Output Activation Time
A 555 one-shot timer circuit (U8) provides the timing to make signals active such as Glue
Light and Horn. JP2 jumper positions determine the length of time these signals are active.
See chart above.
Summary of Contents for VC3500
Page 1: ...VC3500 User s Manual Software Version 3 X Manual Number MCO35 Manual Release Date July 1999 ...
Page 19: ...Installation VC3500 User s Manual Valco Cincinnati 16 Figure 8 Internal Connections Diagram ...
Page 88: ...VC3700 User s Manual Software Version 3 X Manual Number MCO34 Manual Release Date July 1999 ...
Page 181: ...VC3500 VC3700 Troubleshooting Manual Manual Number MC048 Release Date May 1999 ...
Page 185: ...VC3500 VC3700 Troubleshooting Manual Valco Cincinnati Page 1 System Level Documents ...