IS-200A
12. Troubleshooting
12-5
(Note 3) When the MONITOR screen is displayed, the monitor data is
transferred to the MA-627A simultaneously with the END signal
output (transmission time Tb1). The monitor data is not transferred
when the screen other than MONITOR screen is displayed.
The next start signal is not received while the monitor data is
transferred. Also, on every screen, the data is transferred to the
MA-627A from the Power Supply to display the monitor error when
the monitor data is beyond/below the upper/lower limit (data
communication time Tb2).
To make takt faster, do not display the MONITOR screen or do not
make the monitor data beyond/below the upper/lower limit.
The data transmission time Tb1 and Tb2 are shown in the table
below.
Monitor error occurs
Monitor error does
not occur
MONITOR screen Tb1: 160
ms max.
Tb1+Tb2+α:
249
ms max.
Screens other than
MONITOR screen
0
ms Tb2: 86
ms max.
(Note 4) When the RS-485/RS-232C external communication function is set
to the single-directional communication mode (see 4. (7) MODE
SELECT Screen), the monitor data is transferred to the host
computer after the completion of welding (transmission time Tc1).
Also, when the monitored value is outside the upper/lower limit on
the MONITOR SET screen, the monitor error code is transferred to
the host computer (transmission time Tc2). The start signal is not
received while transmitting.
To make takt faster, set the external communication function to OFF.
Shown below is the data transmission time Tc1 and Tc2 when the
communication speed is 9600
bps. When the communication speed
is 19200
bps or 38400
bps, the transmission time will be short.
The data transmission time when the communication speed is 9600
bps
Tc1 124
ms max.
Tc2 25
ms max.
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