R88M-W75030T-S1 Omron, R88M-W75030T-S1 Datasheet - Page 235

• Manufacturer Part Number: R88M-W75030T-S1
• Description: SERVO MOTOR 750W 200V
• Manufacturer: Omron

Specifications of R88M-W75030T-S1

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: R88MW75030TS1

Operation
• Adjust the position loop response to suit the mechanical rigidity.
• Servo system response is determined by the position loop gain. Servo systems with a high loop
• Raising the position loop gain in systems with low mechanical rigidity or systems with low specific
• If the position loop gain is low, you can shorten the positioning time using feed forward. You can
Position loop gain is generally expressed as follows:
When the position loop gain is manipulated, the response is as shown in the diagram below.
• Set the mechanical system inertia (load inertia for Servomotor shaft conversion) using the ratio (%)
Position loop gain (Kp) =
Servomotor speed
Pn102
Setting
range
Pn103
Setting
range
Pn104
Setting
range
Pn105
Setting
range
gain have a high response, and positioning is fast. To raise the position loop gain, you must improve
mechanical rigidity and raise the specific oscillation. This should be 500 to 700 (0.1/s) for ordinary
machine tools, 300 to 500 (0.1/s) for general-use and assembly machines, and 100 to 300 (0.1/s)
for production robots. The default position loop gain is 400 (0.1/s), so be sure to lower the setting for
machines with low rigidity.
oscillation may result in machine resonance, causing an overload alarm to occur.
also shorten the positioning time using the bias function.
of the Servomotor rotor inertia. If the inertia ratio is set incorrectly, the Pn103 (inertia ratio) value will
also be incorrect.
Position loop gain (Position)
10 to 20000 Unit
Inertia ratio (Position, speed)
0 to 20000
Speed loop gain 2 (Position, speed)
10 to 20000 Unit
Speed loop integration constant 2 (Position, speed)
15 to 51200 Unit
Deviation counter residual pulses (pulses)
Unit
Command pulse frequency (pulses/s)
When position loop gain is low
When position loop gain is high
× 0.1/s
%
× 0.1 Hz
× 0.01 ms
Default
setting
Default
setting
Default
setting
Default
setting
400
300
800
2000
(0.1/s)
Restart
power?
Restart
power?
Restart
power?
Restart
power?
Time
Chapter 4
No
No
No
No
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