Technical data

MHD Sychronous motors MHD071 7-3
DOK-MOTOR*-MHD********-PR05-EN-P
Descri
p
tion S
y
mbol Unit MHD071B-061
Type of cooling Natural Natural Surface Liquid
Motor overtemperature 60K 100 K 60 K/100 60 K/100
Electric
p
arameters
Characteristic motor speed n
K
min
-1
4500
Continuous torque at standstill M
dN
Nm 8.0 9.0 12.0
not
Continuous current at standstill I
dN
A 11.2 13.2 16.8
available
Peak current I
ma
x
A 50.5
Torque constant at 20 °C
1
)K
m
Nm/A 0.77
Voltage constant at 20 °CK
E
(
eff
)
V/1000min
-1
70.0
Winding resistance at 20 °CR12
Ω
1.45
Winding inductivity L12 mH 7.2
Number of pole pairs p 4
Rated data
2
)
Rated speed n
N
min
-1
4000 5000 5000
Rated torque M
N
Nm 1.7 5.3 7.8
Rated current I
N
A 1.7 5.5 7.7
not
Rated performance P
N
kW 0.8 3.4 4.8
available
Rated voltage U
N
V 283 368 380
Rated frequency f
N
Hz 267 333 333
Mechanical
p
arameters
Moment of inertia of the rotor J
M
kgm² 8.7 x 10
-4
Theoretical maximum torque M
ma
x
Nm 32.0
Minimum strand cross-section
4
)Smm
2
1.0 1.0 1.0
not
time constant T
th
min454520
lieferbar
Maximum speed n
ma
x
min
-1
6000
Motor mass
3
)
5
)mkg 8.8
Perm. stor. a. transport temperature T
L
°C -20 to +80
Permissible ambient temperature
6
)T
um
°C 0 to 40
Maximum setup hei
g
ht
6
)
h m 1000 above MSL
Degree of protection
7
)IP65
Insulation class (according to DIN VDE 0530 Part 1) F
Housing varnish Prime coat black in a/w RAL 9005
1
)
2
)
3
)
4
)
5
)
6
)
7
)
K
m
is to be used for calculations with crest values (I
dN
, I
max
). For calculations with root-mean-square values (rated data), the
torque constant K
m
must be multiplied by a factor of
2
.
Values determined according to EN 60034-1. Current and voltage specified as root-mean-square values.
Without holding brake.
Applicable to Bosch Rexroth cables. Rated according to VDE0298-4 (1992) and installation type B2 according to EN 60204-1
(1993) at an ambient temperature of 40 °C.
Without blower unit.
If the limits specified are exceeded, the performance data must be reduced if necessary. For reduction factors, refer to the
chapter entitled “Environmental Conditions”.
Provided the power and encoder cables are mounted properly.
Fig. 7-3: Technical data of MHD071B-061