Smartscan Safety Light Curtain 8K3 Series: Controls Information
Power supply - Use a regulated supply +24V DC, 1A ±10%. Protect the +24V input with a .5A fuse. Connect the power supply to cable B as follows: The BROWN / WHITE wire to +24V DC and the ORANGE / WHITE wire to 0V DC. Connect the shield to ground.
EDM (External Device Monitoring) - This input is used to monitor external switching devices to ensure those devices respond each and every time the light curtain is interrupted.
The EDM circuit must receive +24V DC to function properly. When monitoring a switching device one side of the Normally Closed circuit will connect to the YELLOW wire (cable B) the other to +24V DC. If the EDM function is not required +24V DC must be connected to the YELLOW wire otherwise the system will remain tripped and will not reset.
Activate (Manual Start/Restart) - A push button or key switch is required. Turning the 'activate switch to ON (Close contact in cross beam mode, Open contact in parallel beam mode) and then releasing the switch will automatically restart the safe output relay switching contacts to an ON condition, providing the light curtain is clear of obstruction.
EDM (External Device Monitoring) - This input is used to monitor external switching devices to ensure those devices respond each and every time the light curtain is interrupted.
The EDM circuit must receive +24V DC to function properly. When monitoring a switching device one side of the Normally Closed circuit will connect to the YELLOW wire (cable B) the other to +24V DC. If the EDM function is not required +24V DC must be connected to the YELLOW wire otherwise the system will remain tripped and will not reset.
Activate (Manual Start/Restart) - A push button or key switch is required. Turning the 'activate switch to ON (Close contact in cross beam mode, Open contact in parallel beam mode) and then releasing the switch will automatically restart the safe output relay switching contacts to an ON condition, providing the light curtain is clear of obstruction.
- Cross - Beam Mode: Connect the RED / WHITE wire (cable B) to one side of your Normally Open contact and +24VDC to the other side (for both Activate & Guard Override functions).
- Parallel Beam Mode (T style or External Sensors Only): Connect the RED / WHITE wire (cable B) to one side of your Normally Close contact and + 24V DC to the other side (for both Activate & Guard Override functions).
Guard Override - Turning and holding the activate switch in the ON state will automatically turn-on the safe output relay switching contacts for a period of 3 minutes, providing the light curtain is in a tripped condition e.g. with the curtain blocked by a loaded pallet. As soon as the loaded pallet clears the light curtain the safety system will automatically reactivate to a 'fully guarded' condition. Now, release the activate switch and restart the safety system in the normal manner.
switching power 110V, 2A.
OSSD1 (Safety Output 1): RED wire & BLACK wire.
OSSD2 (Safety Output 2): BLUE wire & BROWN wire.
- Cross - Beam Mode: Connect the RED / WHITE wire (cable B) to one side of your Normally Open contact and +24VDC to the other side (for both Activate & Guard Override functions).
- Parallel Beam Mode (T style or External Sensors Only): Connect the RED / WHITE wire (cable B) to one side of your Normally Close contact and + 24V DC to the other side (for both Activate & Guard Override functions)
switching power 110V, 2A.
OSSD1 (Safety Output 1): RED wire & BLACK wire.
OSSD2 (Safety Output 2): BLUE wire & BROWN wire.
Status Relay Output - The status output is a voltage free NON-SAFETY contact that is ON (closed) when the safety relays are ON (closed) and OFF (open) when the safety relays are OFF (Open). The status contact has a maximum switching 110V, 1A.
Status Output: WHITE wire & GREEN wire
Mute Output - Some machines require a mute signal to indicate that the light curtain is muted. To monitor the mute status of the light curtain the VIOLET wire (cable B) must receive 24V DC. This electronic output is rated 24VDC@100mA.
Mute Delay OFF -The delay off timer setting is required for ‘L’ type muting system. A two (2) second delay is applied once the mute sensors are cleared allowing the product to pass through the sensing region without actuating the OSSD’s.
Status Output: WHITE wire & GREEN wire
Mute Output - Some machines require a mute signal to indicate that the light curtain is muted. To monitor the mute status of the light curtain the VIOLET wire (cable B) must receive 24V DC. This electronic output is rated 24VDC@100mA.
Mute Delay OFF -The delay off timer setting is required for ‘L’ type muting system. A two (2) second delay is applied once the mute sensors are cleared allowing the product to pass through the sensing region without actuating the OSSD’s.
- Delay Timer OFF Connect the BLACK / WHITE wire to 0V DC.
- Delay Timer ON: Connect the BLACK / WHITE wire to +24V DC.
Mute Inputs (M1, M2) - Mute inputs (M1, M2) are for connecting the L & T muting modules, or external mute sensors. The inputs are applied externally via 4 way connectors mounted on the side of the Transmitter (Tx) and Receiver (Rx) units. When both inputs are active ON, the light curtain will mute, e.g. the guard output switches will not respond to an interruption of the light curtain. There are also mute LED indicators located in the receiver column that extinguish when the mute signals are applied. How the mute inputs are applied in parallel or cross-beam modes are explained in the muting sequences section.
Mute enable input - This signal must be applied for muting to occur. It may be used as a 3rd mute signal. When self-muting light curtains are used on conveyor systems" Conveyor Run" can start the muting sequence. This technique makes deliberate bypass of the light curtain more difficult. Mute Enable: Connect the GRAY wire (cable B) to +24V DC.
Mute enable input - This signal must be applied for muting to occur. It may be used as a 3rd mute signal. When self-muting light curtains are used on conveyor systems" Conveyor Run" can start the muting sequence. This technique makes deliberate bypass of the light curtain more difficult. Mute Enable: Connect the GRAY wire (cable B) to +24V DC.