Danaher Motion Pacific Scientific
Configuring the Drive
16
M-SD-7AC-01 Rev 1
3.2. S
TEP
R
ESOLUTION
3.3. L
OAD
I
NERTIA
The P7000 eliminates resonance, typical of step motors, with high-speed,
digital processing of motor electrical activity. To use this feature, you
must set three switches based on the load-to-rotor inertia ratio. These
switches select the gain parameter for the drive to use to stabilize the
motor.
Load Inertia Ratio
Load-Rotor
S2-5
S2-6
S2-7
0-1
OFF
OFF
OFF
1-1.5
ON
OFF
OFF
1.5-2.5
OFF
ON
OFF
2.5-5.0
ON
ON
OFF
5.0-7.0
OFF
OFF
ON
7.0-12.0
ON
OFF
ON
12.0-20.0
OFF
ON
ON
20.0-32.0
ON
ON
ON
Step Resolution
Resolution
S2-2
S2-3
S2-4
200
ON
ON
ON
400
OFF
ON
ON
5,000
ON
OFF
ON
10,000
OFF
OFF
ON
18,000
ON
ON
OFF
25,000
OFF
OFF
OFF
25,400
OFF
ON
OFF
50,000
ON
OFF
OFF
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