YASKAWA SGDV-OCA05A

5.14 Electronic Gear Settings
5.14.1 Electronic Gear Ratio Settings
5
Basic Functions That Require Setting before Operation
5-41
5.14.1 Electronic Gear Ratio Settings
Set the electronic gear ratio using Pn20E and Pn210.
The setting range of the electronic gear depends on the setting of Pn040 = n.X (Encoder
Resolution Compatibility Selection).
• Pn040 = n.0 (Use the encoder resolution of the Servomotor.)
Set the electronic gear ratio within the following range.
0.001 ≤ Electronic gear ratio (B/A) ≤ 64,000
If the electronic gear ratio is outside of this range, an A.040 alarm (Parameter Setting Error) will
occur.
• Pn040 = n.1 (Use a resolution of 20 bits when connected to an SGM7J, SGM7A,
SGM7P, SGM7G, SGM7E, or SGM7F Servomotor.)
Set the electronic gear ratio within the following range.
0.001 ≤ Electronic gear ratio (B/A) ≤ 4,000
If the electronic gear ratio is outside of this range, an A.040 alarm (Parameter Setting Error) will
occur.
The motor may not operate at the maximum speed depending on the encoder resolution and
electronic gear ratio setting. Refer to the following table for details.
Pn20E
Electronic Gear Ratio (Numerator)
Setting Range Setting Unit Default Setting When Enabled Classification
1 to 1,073,741,824 1 64 After restart Setup
Pn210
Electronic Gear Ratio (Denominator)
Setting Range Setting Unit Default Setting When Enabled Classification
1 to 1,073,741,824 1 1 After restart Setup
Important
Important
* This is the speed when 115,343,500 reference units/s is set
for a parameter or command.
Encoder
Resolution
Electronic
Gear Ratio
Motor Speed Limit*
1,048,576 1
6,600 min
-1
4,194,304
1
1,650 min
-1
4
6,600 min
-1
16,777,216
1
413 min
-1
16
6,600 min
-1