maxon motor control
MCD EPOS P Programmable Compact Drive
Document ID: rel2895
4-17
MCD EPOS P 60 W Hardware Reference
Edition: December 2011
© 2011 maxon motor. Subject to change without prior notice.
Sought value:
•
Supply vV
CC
[Volt]
Solution:
2) Choose power supply capable as to above calculation. Thereby consider:
a) During braking of the load, the power supply must be capable of buffering the fed back
energy, e.g. in a capacitor.
b) When using an electronically stabilized power supply, observe that the overcurrent protection
must not be activated in any operating state.
4.1.2
Logic Supply (optional)
By default, the logic is powered by the regular supply voltage. Optionally, you may wish to feed the logic
supply voltage separately, permitting a safe and economical power backup feature.
Basically, any power supply may be used, provided it meets below stated minimal requirements.
+V
C
Power_Gnd
Connector [J2] Pin [8]
Connector [J2] Pin [5]
Power Supply Requirements
Output voltage
V
C
min. 12 VDC; V
C
max. 50 VDC
Absolute supply voltage
min. 11 VDC; max. 54 VDC
Min. output power
P
C
min. 3 W
V
CC
1
k
n
-----
n
B
Δ
n
Δ
M
---------
M
B
⋅
+
1
0.9
-------
⋅
⋅
1
V
[ ]
+
=
V
CC
1
393
rpm
V
----------
-------------------------
n
B
20.6
rpm
mNm
-------------
M
B
⋅
+
1
0.9
-------
⋅
⋅
1
V
[ ]
+
=
