252
Monitor display and monitor output signal
(2) AM terminal calibration
(C1 (Pr. 901))
⋅
Calibrate the AM terminal in the following procedure.
1) Connect a 0-10VDC meter (frequency meter) to across inverter terminals AM-5. (Note the polarity. The terminal
AM is positive.)
2) Refer to the monitor description list
(page 244)
and set
Pr. 158
.
When you selected the running frequency, inverter output current, etc. as monitor, preset in
Pr. 55
or
Pr. 56
the
running frequency or current value at which the output signal will be 10V.
3) When outputting the item that cannot achieve a 100% value easily by operation, e.g. output current, set "21"
(reference voltage output) in
Pr. 158
and perform the following operation. After that, set "2" (output current, for
example) in
Pr. 158
.
⋅
Terminal AM is factory-set to provide a 10VDC output in the full-scale
status of the corresponding monitor item.
Calibration parameter C1 (Pr.
901)
allows the output voltage ratios (gains) to be adjusted according
to the meter scale. Note that the maximum output voltage is 10VDC.
REMARKS
⋅
When outputting such an item as the output current, which cannot reach a 100% value easily by operation, set
Pr. 54
to "21"
(reference voltage output) and make calibration. 10VDC is output from the terminal AM.
AM
Inverter
10VDC
5
Содержание FR-A740-00023-EC
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