Saturn S300 Series Service Manual page 42

Installation
IOU Board Connector's Definition and Encoder and Photocell
Installation
Connect the
Photocell
Connect the Encoder
Procedure
Follow these steps to connect the Photocell:
WARNING: The printer must be power off when installing the
Photocell.
1. Route the photocell wires through one of the side ports on
the printer.
2. Attach the wires from the photocell to the photocell on the
IOU board. Pin identification for photocell hook-up is shown
in Figure 4-2 and Table 4-1.
A shaft encoder is used when the speed of the conveyor varies.
The frequency of the pulse which the shaft encoder generates
can be multiplied or divided by the FCU (optional). The printer
will print one stroke when received one pulse from FCU. So when
the frequency changed, the print speed changed synchronously.
The width of printed message will be the same all the time except
the speed of the conveyor goes beyond the speed limit of the
printer.
Enter <Print Setup-3>, set "Setup Encoder" as follow:
1. If the speed of the production line is steady, adjust message
"Width" to control the printing speed. You need to turn "Off"
the setup of "Encoder Select".
2. If the speed of the production line is not steady, it is
suggested adjust the printing speed ("Width") by encoder.
You need to turn "On" the setup of "Encoder Select". When
adjusting the printing speed ("Width"), change the value of
Frequency Divide (1~15) and Frequency Multiple (1~15), to
control the frequency received, then adjust the message
width.
CAUTION: The higher the value of Frequency Divide is, the
wider the message; The higher the value of
Frequency Multiple is, the narrower the message.
Follow these steps to install the encoder wires in the printer:
WARNING: The printer must be power off when installing the
encoder.
1. Route the encoder wires through one of the side ports on the
printer.
2. Attach the wires from the encoder to the encoder connector
on the IOU board. Pin identification for encoder hook-up is
shown in Figure 4-2 and Table 4-1. (Follow the instructions
provided with your shaft encoder.)
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