Zero Set - Panasonic HL-C2 Series User Manual

■ Zero Set

This function is used for forcibly setting the measurement value to "0".
Normally, the amount of displacement is displayed in reference to the center
of measurement of the sensor head. However, after this function is set to
"ON", the amount of displacement is displayed in reference to the position
when the function is set to "ON".
Use this function to reset the measurement value of a reference object to "0" and
measure the displacement amount or make "Judgment Output".
· The zero set function can be set to "ON/OFF" by using the zero set terminals
(ZS1, ZS2) of the external input terminal.
of I/O Terminal Block"
The zero set terminals have both "zero set ON" and "zero set OFF" functions.
· When the zero set terminal is set to "ON" (short-circuited)*, the zero set function
is set to "ON". Keeping the zero set "ON" status for longer than 1 sec, then, 1
second later, the zero set is set to "OFF" status. (Thus, to set the zero set to
"OFF", set the zero set to "ON" at first. )
・ When repeating the zero set "ON" input, the zero set function is also repeated.
(Short-circuit)
Zero set terminal
(Open circuit)
*More than the setting time of chattering prevention is necessary.
"Chattering prevention of the terminal input"
Note that the judgment output may be changed once because the zero set is set
to "ON" immediately after the "zero set" is released by the external input
terminal.
Ensure that the offset value remains after the zero set is released in case that
the "Offset" is set to "ON".
During an alarm occurrence, zero set cannot be set to ON.
● How to use
1
Display the "OUT1 (or OUT2) operation" screen.
ON
OFF
Less than
1sec*
Zero set "ON" Zero set "ON"
Setting screen of OUT1
4-31
Chapter 4 Explanation of Functions
"2-1 Functions and Arrangement
1sec
Zero set "OFF"
Setting screen of OUT2
4