Hardware Reference
MCD EPOS 60 W
December 2011 Edition / document number 791272-04 / subject to change
maxon motor control
Power supply
voltage
[+V
CC
12-50 VDC] Connector [J2] Pin number [9]
Ground of supply
voltage
[Power_Gnd]
Connector [J2] Pin number [5]
Any available power supply can be used, provided it meets the minimal
requirements set out below.
During set up and adjustment phases, we recommend separating the unit
mechanically from the machine to prevent damage due to uncontrolled
motion.
Output voltage
V
CC
min. 12 VDC; V
CC
max. 50 VDC
Ripple
< 10 %
Output current
Depending on load,
continuous min. 2.6 A
acceleration, short-time min. 9 A
The required voltage can be calculated as follows:
Operating torque M
B
[mNm]
Operating speed n
B
[rpm]
Speed constant: k
n
= 393
rpm/V
Speed/torque gradient:
n/
M = 20.6 rpm/mNm
Supply vV
CC
[Volt]
]
[
1
9
.
0
1
)
6
.
20
(
393
1
]
[
1
9
.
0
1
)
(
1
V
M
mNm
rpm
n
V
rpm
V
V
M
M
n
n
k
V
B
B
CC
B
B
n
CC
Choose a power supply capable of supplying this calculated voltage under
load. The formula takes a max. PWM cycle of 90 % and
a 1 V max. voltage drop at power stage into account.
During braking of the load, the power supply must be capable of buffering
the feed back energy, e.g. in a capacitor or shunt regulator.
When using an electronically stabilized power supply observe that the over
current protection shall not be activated in any operating state
Содержание MCD EPOS 60 W
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