KEYENCE LT-9001 Series - Manual (Page 159)

Appendices
E LT-9001-IM
A-3
Symptom Check point Remedy
Is the unit properly wired? Check the output circuit and wiring and connect
properly.
Judgment cannot be output Is the tolerance properly set up? Perform the tolerance setting again.
properly. ( Page 5-7)
Is the I/O mode properly set up? Select comparator mode for I/O mode.
( Page 5-20)
Is the unit properly wired? Check the wiring and connect properly.
Does the voltage exceed Set the analog scaling appropriately according to
+10.5 V or below -10.5V? the measured value. ( Page 5-15)
Analog output cannot be output Is an oscilloscope or a hi-speed A/D board The resolution may decrease if these devices are
properly. used? used.
Change the analog scaling so that the effect
should be minimized.
Is the I/O mode properly set up? Select binary mode for I/O mode.
( Page 5-20)
Is the unit properly wired? Check the output circuit and wiring and connect
Binary output cannot be output properly.
properly. Is the logic properly set up? Negative logic is used in output.
Is the import timing properly set? Use strobe output to enable importing in proper
timing. ( Page 7-4)
Is BIN SEL input properly input? Input correctly. ( Page 7-4)
Is the communication cable properly Connect the communication cable properly.
connected? ( Page 8-2)
Does the type of the communication cable Check the connection of the communication
conform to the connecting specifications? cable. ( Page 8-2)
Cannot communicate via the Are the communication specifications properly Set the communication specifications of the LT-
RS-232C. set up? 9000 the same as that of the external devices.
( Page 8-2)
Is the appropriate communication program Check whether the commands and the delimiters
used? are properly received or sent. ( Page 8-3)
Is the setting properly set up according to the Set the D-MODE appropriately.
communication method or external devices? ( Page 8-3)
The image of the measurement Is the display mode appropriately set up? Set it up appropriately.
target is not displayed. ( Page 2-12)
Is the remote control console properly Connect the remote control console properly.
The remote control console does connected? ( Page 1-8)
not function. Is Keylock set to ON? Set the Keylock to OFF.
( Page 5-5)