7
EDH0387En1020 — 09/18
BG Series Goniometric Cradles
DC-Motor Performance Specifications and Characteristics
Command Signals for the DC-Motors
In the above drawings, + Motor signal is referred to – Motor signal, +
Tacho Generator signal is referred to – Tacho Generator signal.
➀
When the stage moves in + Direction, the + Motor voltage is higher than
– Motor voltage, and + Tacho Generator voltage is higher than – Tacho
Generator voltage.
➁
When the stage moves in – Direction, the + Motor voltage is lower than
– Motor voltage, and + Tacho Generator voltage is lower than – Tacho
Generator voltage.
4.3
Sensor Position
End-of-Run and Mechanical Zero are 5 V open collector type.
The Index Pulse provides a repeatable Home Position at ±1 step.
CAUTION
“End-of-Run” and “Mechanical Zero” are active signals and should not
be connected to any other source.
Resolution Speed Nominal Max RMS Max. Peak Resistance Inductance Tachometer
(°) (°/s) Voltage (V) Current (A) Current (A) (
Ω
) (mH) Const. (V/krpm)
BGS50CC
0.0000698 10 24 0.15 0.21 54.6 1.19 –
BGS80CC
0.001 20 48 0.9 1.8 2.52 0.51 –
BGM120 to 200CC
0.001 20 48 1.5 2.3 5.1 3.2 7 (±10%)
Dir
Dir
+V
+ Motor
+ Tachometer
– Motor
– Tachometer
–V
MOTION
Dir
MOTION
Direction –
– EOR Limit
Mechanical
Zero
Stage Travel Range
Index Pulse
Index Pulse
+ EOR Limit
Home Position (Origin)
at Center of Travel Range
Direction –
MOTION
Dir
