Festo Электромотор MTR-DCI - Manual (Page 60)

3. Installation
3-8
Festo P.BE-MTR-DCI-CO-EN en 1209a
3.3.2 Load and logic voltages
Load voltage The power electronics and the motor are supplied with direct
current via the voltage connection.
• Use the power supply cable KPWR-MC-1-SUB-9HC-... (max
length of 10 m).
• Use a closed-loop controlled power unit with high output
reserve and external fuse for the load voltage supply.
Plug Pin Colour
1)
Description
A1 A2
A1 black (1) MTR-DCI-32/42/52:
MTR-DCI-62: POWER +24 VDC
POWER +48 VDC
A2 black (2) MTR-DCI-32/42/52/62: POWER GND 2)
1) Cable colours with power supply cable KPWR-MC-1-SUB-9HC-...
2) Do not connect GND with the housing, screening or functional earth (FE)!
Tab. 3/3: Connecting the power supply to the motor unit
Closed-loop controlled DC motors have a much higher current
consumption during the switch-on or starting torque than in
rated operation. These consumers cause a brief overloading
of the power supply or a short circuit.
Power supply units with U/I output curve continue to provide
the full output current (at reduced output voltage) even in the
event of a higher load or short circuit.
With power units with additional output reserve (power
boost), the output voltage remains constant even during
overload. Power units with U/I characteristic curve and power
reserve are therefore optimally suited for universal industrial
use.