85
7. Function and operation
7−1. External control input signal and Open collector output signal
The instrument is available to the external control through various kinds of input signals.
7−1−1. External control input signal
It operates by shortening with COM. (Terminal No.15).
Terminal
No.
Name Operation
10 ZERO When the indicated value on load display is within 10 % against the
maximum display value, zero set function activates by the operation and
make the display “0” compulsively. (Same key operation in the paragraph
6−3−1.) As for the operational details, refer to the paragraph 7−12.
11 HOLD While inputting the signal, the target selected with Function F−10 among
display, contact output, analog output and options will be frozen. As for
the operational details, refer to the paragraph 7−9.
12 A/Z After the tare weight cancellation (A/Z) function works, “A/Z” in the
condition display lights on with the display of the net weight in the load
display section, then the load display value becomes “0”. (Same key
operation in the paragraph 6−4−1.) As for operation details, refer to the
paragraph 7−11.
13 A/Z OFF Only when the tare weight cancellation (A/Z) function is working, the tare
weight cancellation clear(A/Z OFF) works, and “A/Z” in the condition
display lights off with the display of the gross weight in the load display
section. (Same key operation in the paragraph 6−5−1.) As for operation
details, refer to the paragraph 7−11.
14 LOCK During this signal input, “LOCK” in the condition display light on with
the lock(prohibit) of all keys.
15 COM. The common of the external control input signal(Terminal No.10 to 14)
and the open collector output (Terminal No.16 to 22).
● Operation of the input signal is executed after shortening for more
than 50 ms approximately. (Level and pulse width of 2, 5, 10 or 20 ms
is changeable. (Related function F−72)
● During the input of HOLD signal, when ZERO, A/Z or A/Z OFF signal
(or the
key on the front panel) is input, operation of HOLD on
the target selected in the function F−10 is executed at the same time
of cancellation of HOLD signal.
● After inputting the HOLD signal in power−OFF condition, turn ON
the power, then the “HOLD” lights on the load display section. The
load value is shown simultaneous with the cancellation of HOLD
signal.
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