9.3 Monitoring Machine Operation Status and Signal Waveforms
9.3.3 Using a Measuring Instrument
9-11
9
Monitoring
Adjustment Example
An example of adjusting the output of the motor speed monitor is provided below.
Preparations
Confirm the following condition before you adjust the analog monitor output.
•
The parameters must not be write prohibited.
Applicable Tools
You can use the following tools to adjust analog monitor outputs. The function that is used is
given for each tool.
•
Offset Adjustment
Offset Adjustment
Gain Adjustment
The gain adjustment range is made using a 100% out-
put value (gain adjustment of 0) as the reference value
with an adjustment range of 50% to 150%.
A setting example is given below.
•
Setting the Adjustment Value to -125
100 + (-125
×
0.4) = 50 [%]
Therefore, the monitor output voltage goes to 50%
of the original value.
•
Setting the Adjustment Value to 125
100 + (125
×
0.4) = 150 [%]
Therefore, the monitor output voltage goes to 150%
of the original value.
•
The adjustment values do not use parameters, so they will not change even if the parame-
ter settings are initialized.
•
Adjust the offset with the measuring instrument connected so that the analog monitor out-
put value goes to zero. The following setting example achieves a zero output.
•
While power is not supplied to the Servomotor, set the monitor signal to the torque refer-
ence.
•
In speed control, set the monitor signal to the position deviation.
Tool
Function
Operating Procedure Reference
Digital Operator
Fn00C
Σ
-7-Series Digital Operator Operating Manual
(Manual No.: SIEP S800001 33)
S
Setup - Adjust Offset
Analog monitor output voltage
Offset adjustment
Motor speed
1 [V]
1000 [min-1]
Analog monitor output voltage
Gain
adjustment
Motor speed
Item
Specification
Offset Adjustment Range
-2.4 V to 2.4 V
Adjustment Unit
18.9 mV/LSB
Item
Specification
Gain Adjustment Range
100
±
50%
Adjustment Unit
0.4%/LSB
Information
