Nexen PC210 913071 - Manual (Page 7)

FORM NO. L-20341-E-0208
FRONT PANEL CONTROLS AND INDICATORS
The Power Switch has an imbedded indicator LED that
glows when power is on (See Figure 4).
The Cover Panel encloses setup controls (See Figure 4).
The Web Break Indicator is a red LED that glows under
the symbol of a dashed line drawing of a sheet of paper.
This LED glows when there is a web break, and the relay
at Terminals 7, 8, and 9 changes state (See Figure 4).
The Normal Run Indicator is a green LED that glows
under a solid line drawing of a single sheet of paper. This
LED glows when a single sheet is being fed in a sheet-
fed machine or a single thickness of web is running in a
web-fed machine. At this time, the relay at Terminals 7,
8, and 9 and the relay at Terminals 10, 11, and 12 are in
their normal state (See Figure 4).
The Double Feed/Splice Indicator is a red LED that
glows under a solid line drawing of two sheets of paper.
This LED glows when a double sheet-feed is detected
on a sheet-fed machine or when a splice is detected in a
web-fed machine. At this time, the relay at Terminals 10,
11, and 12 changes state (See Figure 4).
The Test Switch with imbedded indicator LED allows the
Sensor to be tested for sensitivity to various materials,
thickness, web breaks, etc., without changing state of
the relays at Terminals 7, 8, and 9 and at 10, 11, and
12. When the Test Switch is depressed and the red
LED glows, the PC210 is in test mode. The Web Break,
Normal Run, and Double Feed/Splice Indicator LEDs will
indicate normally for varying conditions, but the relays will
stay in their normal state. This allows for testing without
interference with machine logic controls, which read
these relay states. When the Test Switch is depressed
again, the red LED goes out and the PC210 is back to
its normal operation state, with the relays changing state
along with the indicator LEDs (See Figure 4).
The Reset Switch is used to reset the system after a
double feed contact signal in a sheet-fed machine or
a splice signal in a web-fed machine is given and the
Output Reset Selector Switch (located inside the Cover
Panel) is set to manual reset mode (See Figure 4).
FIGuRE 4
Web Break
Indicator
RED LED
Normal Run
Indicator
GREEN LED
Double Feed/
Splice Indicator
RED LED
Reset
Switch
Test
Switch
Power
Switch
Cover
Panel