User`s manual

259
CHAPTER 8 TROUBLESHOOTING
8
8.4 Troubleshooting by Symptoms 8.4.2 When the coincidence output function or the cam switch function does not operate normally
(3) When only coincidence output terminal 1 to 8 (EQU1 to 8) do not turn on
(4) When the count value cannot be replaced with a preset value by the preset/
replace (at coincidence output) function
Check item Corrective action
Has CH1 Coincidence output enable command (Y02)
been turned on?
Turn on CH1 Coincidence output enable command (Y02).
Has voltage been added to the power supply for external
output (12V/24V)?
Add voltage to the power supply for external output (12V/24V).
Is the external wiring of the coincidence output 1 to 8
terminals (EQU1 to 8) correct?
Check the external wiring and correct errors.
Check item Corrective action
Has CH1 External preset/replace (Z Phase) request
detection (X05) turned on?
Turn off CH1 External preset/replace (Z Phase) request detection (X05) by
CH1 External preset/replace (Z Phase) request detection reset command
(Y05).
Also, set ON/OFF time of CH1 External preset/replace (Z Phase) request
detection reset command (Y05) to 2ms or longer.
Has Preset/replace setting at coincidence output (Un\G1)
been set to Not preset (0)?
Set Preset/replace setting at coincidence output (Un\G1) to Preset (1).
Have coincidence output 1 and 2 (X10 and X11) been
kept on?
With this function, the count value is replaced with a value preset by the user
at the rising state (OFF to ON) of the coincidence output 1 and 2 (X10 and
X11). Therefore, turn them off before performing this function.
Has an interval of 1ms or longer been set between each
operation of this function?
Set an interval of 1ms or longer between each operation of the preset/replace
function.
After changing CH1 Preset value (Un\G1014, Un\G1015)
is there an interval of 2ms or longer before the preset/
replace function is performed?
Set an interval of 2ms or longer after changing CH1 Preset value (Un\G1014,
Un\G1015) and before performing the preset/replace function.