Sharp NP-PH3501QL Installation Manual - NEC - Page 135

Circuit diagram, When the length of the wiring is less than 5 m approximate

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Circuit diagram Interlock connector 4 Shorting wire 2 3 Inside projector GND 390Ω/0.5W resistor Shorting wire 1 390Ω/0.5W resistor 2 1A fuse 1 VCC +5V Photocoupler 7. Appendix Connector no. 1 2 3 4 Photocoupler ON/OFF - ON/OFF - Description +5V supply Connects to the photocoupler anode inside the projector Connects to the photocoupler cathode inside the projector Ground When the length of the wiring is less than 5 m (approximate) Remove shorting wire 1 or shorting wire 2 and connect the external contacts (switch) to the projector interlock terminal (1 and 2 or 3 and 4) by cable. • The projector operates normally when the contacts are closed and the system shuts off when the contacts are open. • A power supply external from the projector is not necessary. • A maximum of 2 sets of external contacts can be connected. If you are only using a single set of external contacts, connecting the shorting wire to the interlock terminal you are not using. • The minimum rating required of the external contacts is 2mA. When the length of the wiring is at least 5 m (approximate) Remove shorting wire 1 and shorting wire 2 and connect the external device to the projector interlock terminals (2 and 3) (do not use 1 and 4). • Connect terminal 2 to the positive side of the external device and connect terminal 3 to the negative side. • The projector operates normally when a voltage in the range of DC5 to 16V is applied between terminals 2 and 3, and the system shuts off when the voltage is 0V. • The minimum rated current required of the external device varies depending on the voltage applied between the terminals by the external device. • When feeding the cable out from the projector, feed it so that it passes through the hole on the side face of the projector. Pull the cable through here. 109

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109
7. Appendix
Circuit diagram
Shorting wire 1
Shorting wire 2
Interlock connector
Inside projector
390Ω/0.5W resistor
390Ω/0.5W resistor
GND
4
3
2
1
1A fuse
VCC +5V
Photocoupler
Connector no.
Photocoupler ON/OFF
Description
1
—
+5V supply
2
ON/OFF
Connects to the photocoupler anode inside the projector
3
Connects to the photocoupler cathode inside the projector
4
—
Ground
When the length of the wiring is less than 5 m (approximate)
Remove shorting wire 1 or shorting wire 2 and connect the external contacts (switch) to the projector interlock terminal
(1 and 2 or 3 and 4) by cable.
•
The projector operates normally when the contacts are closed and the system shuts off when the contacts are open.
•
A power supply external from the projector is not necessary.
•
A maximum of 2 sets of external contacts can be connected. If you are only using a single set of external contacts,
connecting the shorting wire to the interlock terminal you are not using.
•
The minimum rating required of the external contacts is 2mA.
When the length of the wiring is at least 5 m (approximate)
Remove shorting wire 1 and shorting wire 2 and connect the external device to the projector interlock terminals (2
and 3) (do not use 1 and 4).
•
Connect terminal 2 to the positive side of the external device and connect terminal 3 to the negative side.
•
The projector operates normally when a voltage in the range of DC5 to 16V is applied between terminals 2 and 3,
and the system shuts off when the voltage is 0V.
•
The minimum rated current required of the external device varies depending on the voltage applied between the
terminals by the external device.
•
When feeding the cable out from the projector, feed it so that it passes through the hole on the side face of the
projector.
Pull the cable through here.