50
7.
Function and operation
7
−
1. External control input signal and contact output signal
The instrument is available to the external control through various kinds of input signals.
7
−
1
−
1. Input signal for external control
Activates by shortening with COM.1 (Terminal No. 8).
Terminal
No.
Name
Operation
9
ZERO
When the indicated value on load display is within 10 % against the
maximum display value, zero set function will activate 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.
10
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.
11
PEAK
/TRACK
/A/Z
Changeover of track value and peak holding value.
Moreover, when the A/Z function is selected with F
−
70, it executes
the tare weight cancellation.(A/Z ON)
Open
：
Track value
Short
：
Peak holding value
12
RESET
/A/Z OFF
During the peak hold operation, the reset condition is made by short
circuit. And tare weight cancellation clear(A/Z OFF) when A/Z
function is selected with F
−
70.
8
COM.1
The common for the input signal (Terminal No. 9 to 12)
●
Operation of input signal will be executed after shortening for more
than 100 ms approximately.
●
Only A/Z and the A/Z OFF function are pulse input, and it is effective
once in the pulse width of 100 ms or more.
●
When the ZERO signal(or the
＋
key on the front panel) is
input while inputting the HOLD signal, the operation of ZERO is
executed simultaneously with the release of the HOLD signal.
●
When the HOLD signal is input in the status of power supply OFF,
and the power supply is turned on, it is displayed in load display panel
as
“
HOLD”. The load is displayed simultaneously with the release of
the HOLD signal.
●
The COM. 1 (terminal No. 8) and the COM.2 (terminal No. 13) are
isolated.
