EDH0199En2041 — 12/18
6
MFA Series Miniature Linear Stages
4.0 —
Drives and Motors
4.1
Stepper Drive Version
Stepper-motor-driven stages are offered in one half-step drive version:
MFA-PP & MFA-PPD.
Micro-Step Drive
This is the drive for stepper or pulse-driven motors, transmitted by the
electronic unit, which entails a theoretical movement of the motor by one
fraction of a full-step. For these translation stages, the micro-step is
equivalent to 1/64 of the full-step.
Stepper Motor Performance Specifications and Characteristics
Command Signals for the Stepper Motor
4.2
DC-Motor Drive Version
One DC-motor-driven configuration is available: MFA-CC.
DC-Motor Performance Specifications and Characteristics
NOTE
For the MFA-CCV6 vacuum compatible stage to 10
-6
hPa, the max. speed
has to be divided by two.
Resolution
(1)
Speed Angle by Step RMS Current Resistance Inductance
(µm) (mm/s) (°) per Phase (A) (
Ω
) (mH)
MFA-PP
0.00757 0.3 15 0.25 12.5 5.5
MFA-PPD
0.00757 1.0 15 0.25 12.5 5.5
1)
Micro-step driving.
0
2
-1
1
1
0.5
1.5
Step
1
2
3
4
5
8
7
8
+ Phase 1
+
+
–
–
+
+
–
–
– Phase 1
–
–
+
+
–
–
+
+
+ Phase 2
–
+
+
–
–
+
+
–
– Phase 2
+
–
–
+
+
–
–
+
Direction
–
MOTION
+
+ Phase 1
– Phase 1
+ Phase 2
– Phase 2
Dir
Resolution Speed Nominal Max RMS Max. Peak Resistance Inductance Tachometer
(µm) (mm/s) Voltage (V) Current (A) Current (A) (
Ω
) (mH) Const. (V/krpm)
MFA-CC
0.0174 2.5 24 0.15 0.21 54.6 1.19 –
