5-28
Motor, Mechanical Axis System, Measuring Systems
MPH-02, MPB-02, MPD-02
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
Available third-party motor
Planned third-party motor
L
Dr
= 0.5 * (L
min
- L
U-V
)
(inductance measurement with 1 kHz)
mounting of 3x L
Dr
(three-phase choke)
Calculating the leakage inductance
(asynchronous motor) or
inductance (synchronous motor) of
the third-party motor by means of
the single-phase substitute
connection diagram
(manufacturer’s specification!).
Determine choke by means of
calculation, if necessary. It is
recommended to contact Rexroth!
Requirements on the choke:
- I
n_Dr
≥
I
n_Mot
The rated current of the choke has to be greater than or equal to the rated motor
current.
- f
I
= f
Ausgang, max.
;
f
PWM
Depending on the maximum speed, the choke is loaded with the respective
output frequency and the PWM frequency of the controller.
- Insulation class
The insulation class has to correspond at least to that of the motor or has to be
dimensioned for higher temperatures.
- The voltage load of the choke depends on the controller used.
Fig. 5-14:
Data for possibly required choke
Temperature Evaluation
Only such motors with incorporated temperature sensor should be
operated together with IndraDrive controllers, because only then can the
motor be thermally monitored by the controller and protected against
destruction by too high temperature rise.
The controller is informed on the temperature sensor type via parameter
P-0-0512, Temperature sensor
. Standard sensor types are
characterized by a characteristic number. A characteristic stored in the
firmware is assigned to this number.
See "Motor Temperature Monitoring" in section "General Information on
the Operation of Motors with IndraDrive"
See Parameter Description "P-0-0512, Temperature sensor"
General Information on Controlling Third-Party Motors
Pertinent Parameters
•
S-0-0106, Current loop proportional gain 1
•
S-0-0107, Current loop integral action time 1
•
S-0-0109, Motor peak current
•
S-0-0111, Motor current at standstill
•
S-0-0113, Maximum motor speed
•
S-0-0141, Motor type
•
P-0-0018, Number of pole pairs/pole pair distance
•
P-0-0045, Control word of current controller
•
P-0-0051, Torque/force constant
Motor Parameters for
Synchronous and Asynchronous
Motors
Motor
L
σ
min
3x L
Dr
U
V
W
L
U-V
Courtesy
of
CMA/Flodyne/Hydradyne
▪
Motion
Control
▪
Hydraulic
▪
Pneumatic
▪
Electrical
▪
Mechanical
▪
(800)
426-5480
▪
www.cmafh.com