Technisches Handbuch
SMCI33
Connections and circuits
3.4 Voltage supply connection: Connector X4
Permissible operating voltage
The permissible operating voltage for the SMCI33 stepper motor control lies between
+24 and +48 V DC; it must not exceed 50 V or fall below 21 V .
A charging condenser with minimum 4700 µF (10000 µF) must be provided for the
operating voltage to prevent exceeding the permissible operating voltage (e.g. during
braking).
Danger of electrical surges
Connect charging condensor with minimum 4700 µF!
Connect a condenser with 10000µF for motors with flange size 86x86 (series
ST8918) or greater!
An operating voltage > 50 V will destroy the output stage!
Mixing up the connections can destroy the output stage!
Never disconnect the link when operating voltage is applied!
Never
disconnect lines when live!
Connection diagram voltage supply (X4)
Note:
Complete connection diagram, see Section 2.1.
Pin assignment
Pin no.
Name
Observations
1
Vcc
Operating v24 V DC ... +48 V DC
2
GND
Earth (0 V)
Accessories for voltage supply
Appropriate power packs and charging condensers are available as accessories:
Name Order
identifier
Power pack
NTS-xxV-yA
(xx=voltage: 24 or 48 V, y=current: 2.5, 5 or 10 A)
Information on the selection of the required power supply unit
can be found in our FAQ on www.nanotec.de.
Charging
condenser
Z-K4700 or Z-K10000
Note:
Further information about accessories can be found on the Nanotec website:
www.nanotec.com
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Issue: V 2.2
