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5 Optional modules
Operating manual mzr-2521 and mzr-2921
Last update: June 2019
Technical data subject to change without prior notice!
25
5.6
Brushless DC motor as drive (option)
The micro annular gear pump mzr-2521 and mzr-2921 can alternatively be driven
with a brushless DC-motor. It is characterized by higher dimensions and a wider
speed range, which covers entirely the speed range of the micro annular gear
pump and shows a longer service life than a brushed DC-motor.
Performance parameters
Nominal voltage
24 V
Max. continuous torque
2.6 mNm
Power
11 W
No-load speed at 9 V
11,583 rpm
Max. continuous current
0.44 A
Terminal resistance, phase-phase
15.1
Ω
Terminal inductance, phase-phase
525 µH
Speed range
1 --- 6000 rpm
Ambient temperature
-30 … +125 °C
Type of Hall effect sensor
analog ( digital)
analog hall sensors
1000 pulse/rev.
digital hall sensors
3 pulse/rev.
Legend:
Option for the S-KB control unit
table 13
Technical data of the brushless DC-motor
Function
Connection
Color
Phase A
Ph A
brown
Phase B
Ph B
orange
Phase C
Ph C
yellow
Hall sensor A
Hall A
green
Hall sensor B
Hall B
blue
Hall sensor C
Hall C
grey
V5 V
Vcc
red
Ground
SGND
black
table 14
Pin configuration of the motor
figure 20
Measurements of the micro annular gear pump mzr-2521 or mzr-2921 with a brushless DC-motor