Panasonic LP-400 Series External Control Manual page 29

No. Name/Description
A5 ENC. A: Encoder A-phase input
A6 ENC. B: Encoder B-phase input
Encoder input at marking to the flying object. Input up to 100kHz is possible for A and B phases respectively.
If either inputs of A and B phases are used, connect only ENC.A (A5) with the encoder and connect ENC.B (A6)
to IN COM.
A7 LASER IN: Laser pumping input
While this input is turned on, the laser is pumped to enable the radiation.
It takes approximately 15 to 20 seconds from turning on LASER IN (A7) to completion of laser pumping.
This terminal is available when the DIP switch No. 2 is turned OFF.
A8 SHUTTER: Shutter control input
While this input is turned on, the internal shutter opens. There is a delay time of around 200ms to max. 1
second from turning ON/OFF of SHUTTER (A8) for the actual shutter open / close operation time.
This terminal is available when the DIP switch No. 2 is turned OFF.
Reference
• For LP-400 series, the shutter cannot open until the laser pumping is completed.
CAUTION
A9 ALARM RES.: Alarm reset input
The reset input for restoring the system from the alarm status.
Make sure to verify the safety by eliminating the alarm causes before turning this input ON.
For the alarms you are unable to reset such as the ones caused by hardware or system error, restart the laser
marker.
A10 N.C.: No connection
Do not use this terminal.
A11 • For NPN models *1
LASER STOP-: Output common for laser stop
This terminal is connected to OUT COM. (B2) internally.
Connect A11 with LASER STOP+ (A12) to release the laser stop warning or alarm and change the status of the
laser marker into valid for laser emitting.
The function relating to safety must be shut off mechanically. Therefore, it is recommended to wire these
terminals at no-voltage contact (dry contact).
• For PNP models ("-C" in the end of the model name) *1
RESERVE: System reservation
Do not connect externally.
Notice
• A11 and B11 on the I/O terminal block are available only for NPN type of laser marker. For PNP type, do not use these
terminals.
A12 LASER STOP+: Laser stop input
Use this terminal to stop the laser radiation or disable the laser radiation temporarily by connecting with the
safety devices such as a door or a switch.
When between LASER STOP+ (A12) and OUT COM. (for NPN models; A11 or B2, for PNP models; A2) are
disconnected, the laser radiation will be disabled.
Opening this terminal, changes the status of the laser marker as follows.
• When laser is not emitted: The internal shutter is closed.
• During laser emission: The internal shutter is closed and laser pumping turns off.
The function relating to safety must be shut off mechanically. Therefore, it is recommended to wire these
terminals at no-voltage contact (dry contact).
*1 : Signals of A2, A11, B2 and B11 are different depending on the controller type of NPN or PNP.
• NPN models: LP-4xx(T)U / LP-4xx(T)U-A / LP-4xxS9(T)U / LP-4xxS9(T)U-A / LP-VxxU / LP-VxxU-A / LP-W series
• PNP models (with "-C" in the end of the model name): LP-4xx(T)U-C / LP-4xxS9(T)U-C / LP-VxxU-C
• Do not use SHUTTER (A8) input as the emergency stop or the interlock. If
SHUTTER (A8) input becomes ON during laser emission, the shutter is closed
after the marking operation has been finished.
ME-LP400V-EX-6
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