
MPH-02, MPB-02, MPD-02 Motor, Mechanical Axis System, Measuring Systems 5-37
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
Calculating the torque/force constant with motor at operating temperature
and rated current or continuous current at standstill:
dN
NN
/IF00510P :motors ssynchronou linear
/IM00510P :motors ssynchronourotary
=−−
=−−
M
N
: rated torque (acc. to motor output data)
I
N
: rated current (rms value, acc. to motor output data)
F
N
: rated force (acc. to motor output data)
I
d
: continuous current at standstill (rms value, acc. to motor output data)
Fig. 5-33: Value for P-0-0051 in Nm/A
(rms value)
with rotary synchronous motors, in
N/A
(rms value)
with linear synchronous motors
2
Mag
2
dN
NN
II/F00510P :motors usasynchrono linear
) cos/(IM00510P :motors usasynchronorotary
−=−−
∗=−−
M
N
: rated torque (acc. to motor output data)
I
N
: rated current (rms value, acc. to motor output data)
cos ϕ: power factor
F
N
: rated force (acc. to motor output data)
I
d
: continuous current at standstill (rms value, acc. to motor output data)
I
Mag
: magnetizing current (rms value, acc. to motor output data)
Fig. 5-34: Value for P-0-0051 in Nm/A
(rms value)
with rotary asynchronous motors,
in N/A
(rms value)
with linear asynchronous motors
The value for parameter P-0-0018, Number of pole pairs/pole pair
distance has to be taken from the completed form "Output Data for
Asynchronous or Synchronous Motors".
The velocity command value that is output by the controller is limited to
this value of parameter S-0-0113, Maximum motor speed. The value
mustn’t be higher than the maximum allowed velocity (speed)!
The motor current at standstill is the rms value of the torque-generating
component of the continuous motor current.
The value entered in parameter S-0-0111, Motor current at standstill is
the 100% reference value for the torque/force limit parameters S-0-0092
and P-0-0109 with percentage-based scaling (see below).
d
N
I01110S :motors ssynchronou linear
I01110S :motors ssvnchronourotary
=−−
=−−
I
N
: rated current (rms value, acc. to motor output data)
I
d
: continuous current at standstill (rms value, acc. to motor output data)
Fig. 5-35: Value for S-0-0111 in Nm/A
(rms value)
with rotary synchronous motors, in
N/A
(rms value)
with linear synchronous motors
2
Mag
2
d
N
II01110S :motors usasynchrono linear
cosI01110S :motors usasynchronorotary
−=−−
∗=−−
I
N
: rated current (rms value, acc. to motor output data)
cos ϕ: power factor
I
d
: continuous current at standstill (rms value, acc. to motor output data)
I
Mag
: magnetizing current (rms value, acc. to motor output data)
Fig. 5-36: Value for S-0-0111 in Nm/A
(rms value)
with rotary asynchronous motors,
in N/A
(rms value)
with linear asynchronous motors
The rms value of the maximum allowed total motor current (magnetic-
field-generating and torque-generating current) is indicated in parameter
S-0-0109, Motor peak current.
P-0-0051, Torque/force constant
P-0-0018, Number of pole
pairs/pole pair distance
S-0-0113, Maximum motor speed
S-0-0111, Motor current at
standstill
S-0-0109, Motor peak current
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