4.CONFIRMATION OF THE OPERATION START-UP PROCEDURE B-65285EN/03
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4.3.6 Observing Data Using the Spindle Check Board
4.3.6.1 Overview
By using the check board, you can convert digital signals used for
control in the spindle amplifier module to analog voltage, and observe
the conversion result with an oscilloscope. For internal data
observation, you can use CH1 and CH2 (output: -5 to +5 V) as the
two-channel analog output, and CH1D and CH2D as the output for
checking specific bits of bit data or the like. You can also view internal
data on the five-digit indicator.
4.3.6.2 Major characteristics
Item
Measurement point CH1, CH2 CH1D, CH2D
Output voltage range -5 to +5 V
H: 2 Vmin
L: 0.8 Vmax
Resolution
About 39 mV
(10 V/256)
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Output impedance 10 kΩmin 10 kΩmin
4.3.6.3 Observation method
By setting data using four DIP switches on the check board, you can
output internal data to the five-digit display, analog voltage output
circuit, channels 1 and 2 (LM and SM or CH1 and CH2).
Data on channels 1 and 2 is the one from an 8-bit D/A convertor.
The correspondence between channel 1/2 and the check terminal is
listed below.
Measurement point Check terminal
Channel 1
CH1
CH1D, data bit 0
Channel 2
CH2
CH2D, data bit 0