Amada WELD CHECKER MM-400A - Page 157

MM-400A
8. Operation Screens
8-117
17) PRE EXT NG: External voltage or current input error
*1
Output when the external input (±10 V voltage input or 4 to 20 mA current
input) before a welding start exceeds the upper limit or falls below the lower
limit.
18) PRE GOOD: Normal before welding
Output when the measured value before a welding start is within the upper and
lower limits.
19) TROUBLE: Trouble
Output if an instrument error (E**) occurs.
20) SCH NG: Lack-of-schedule-input error
Output if measurement is made with no external schedule input. (The schedule
signal input terminal on the external input connector must be used.)
21) COUNT UP: Count up
Output if the counter exceeds the preset count.
22) POWER ON: Power ON
Output when the power is ON.
23) READY: Ready
Output when the MM-400A is ready for measurement. However, not output
during measurement (including calculation time) or the program mode
(PROG).
(Note) There are two types for general ready output, when the power is on and
when the instrument is ready for measurement (not in the abnormality, during
measurement, or during setting). Set POWER ON for the former and READY
for the latter.
24) DIST LEV1: Displacement level 1 output
*1
Closed when the displacement reaches the set value.
25) DIST LEV2: Displacement level 2 output
*1
Closed when the displacement reaches the set value.
26) DIST LEV3: Displacement level 3 output
*1
Closed when the displacement reaches the set value.
27) FORCE LEV1: Force level 1 output
*1
Closed when the force reaches the set value.
28) FORCE LEV2: Force level 2 output
*1
Closed when the force reaches the set value.
29) FORCE LEV3: Force level 3 output
*1
Closed when the force reaches the set value.
30) EXT LEV1: External level 1 output
*1
Closed when the external voltage or current input reaches the set value.
31) EXT LEV2: External level 2 output
*1
Closed when the external voltage or current input reaches the set value.
32) EXT LEV3: External level 3 output
*1
Closed when the external voltage or current input reaches the set value.
33) CURR-U: Current upper limit error
Output if the currents (peak and RMS) exceed the upper limits.
34) CURR-L: Current lower limit error
Output if the currents (peak and RMS) fall below the lower limits.
35) VOLT-U: Voltage upper limit error
Output if the voltages (peak and RMS) exceed the upper limits.