Omron OMNUC W R88A-NCW152-DRT, Manual

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5 Parameter Settings
5.3.1 Unit Parameters
5-10
5
5.3 Parameter Details
5.3.1 Unit Parameters
The unit for performing positioning using a DeviceNet Unit is determined by the following
two parameters.
The electronic gear function can be used to set the position command units equal to the
amount of encoder pulses. The host controller can generate position commands in more
familiar user-defined units such as millimeters or inches.
„ Not Using the Electronic Gear
If not using the electronic gear, set Pn810 and Pn811 to 1. This will set the command unit to
1 pulse, so you must calculate the scale position units using the host controller.
Object Attribute No. Name Range Units Effective
Timing
Default
Value
Type
0x64
#30 Pn810
Electronic Gear Ratio G1
(Numerator) 1 to 10,000,000
−
Power-up
1 B
#31 Pn811
Electronic Gear Ratio G2
(Denominator) 1 to 10,000,000
−
Power-up
1 B
DeviceNet Unit
1 pulse
R88D-WT
Encoder Motor
7 revolutions
5 revolutions
Pitch of ball screws
P=6 mm
No. of encoder pulses=
2048 x 4
1
1
1
1
1 pulse