5
EDH0351En1012 — 10/18
ONE-XY Series Integrated XY Linear Motor Stages
4.0 —
Drive and Motor
4.1
Motor characteristics (Direct Drive Brushless Motor)
CAUTION
High RMS current will generate motor heating which will degrade
characteristics of the stage, such as repeatability, accuracy, etc...
4.2
Command Signals
NOTE
The values above indicate voltage induced by energized coil of one
phase on next phase coil. A positive value for U-V would indicate a
higher voltage on U relative to V.
4.3
Sensor Positions
ONE-XY50 ONE-XY100 ONE-XY200
ONE-XY300 ONE-XY400
Magnet Pitch [N-N] (mm) 30.48 30.48 30.48
30.48 30.48
Max. Voltage [Line to Line]
(1)
(V) 500 500 500
500 500
Electrical Time Constant (ms) 0.19 0.19 0.20
0.20 0.20
Max. Motor Temperature (°C) 130 130 130
130 130
Motor Connection DELTA DELTA DELTA
DELTA DELTA
Motor Constant (N
2
/W)
Force Constant (N/Apk) 8.1 16.3 28.7
43.0 57.4
Phase Resistance [@ 25 °C]
(2)
(
Ω
) 5.8 11.6 11.7
17.6 23.5
Phase Resistance [@ 130 °C]
(2)
(
Ω
) 8.2 16.4 16.6
24.9 33.2
Thermal Resistance (°C/W)
Inductance (mH) 1.1 2.1 2.3
3.5 4.7
Continuous Force
(3)
(N) 23 47 93
140 186
Continuous Current
(3)
(Apk) 2.9 2.9 3.2
3.2 3.2
Peak Force
(4)
(N) 75 151 295
442 589
Peak Current
(4)
(NApk) 9.2 9.2 10.3
10.3 10.3
Back EMF Constant (V/m/s) 8.1 16.3 28.7
43.0 57.4
1)
Back EMF plus IR drop must not exceed maximum line to line bus voltage.
2)
Resistance values do not include cable resistance. Cable resistance adds 0.146 ohm/m for Delta connection and 0.44 ohm/m for Wye
Connection.
3)
Continuous operating limits are based on continuous operation at maximum temperature with aluminum heat sink (300mm x 12.5mm
x motor length).
4)
Maximum on time at peak operating limits is 10 seconds.
U-V
-2
0
-0.5
-1
-1.5
0.5
1
1.5
2
A
m
p
lit
u
d
e
U-W
V-W
Induced Voltages Coil Moving
Motion
Dir
R
T
(
Ω
)
2500
2000
1500
1000
500
0
50
T
A
(°C)
100
EHA07248
-50
0
150
Positive Temperature Coefficient
Thermistor, resistance as a function
of temperature. Motor heating is
typically restricted to 20 °C with
Newport Controllers.
Dir
Dir