3. Electrical connection .Work on the electrical system or equipment must only be
carried out by a skilled electrician himself or by specially
instructed personnel under the control and supervision of
such an electrician and in accordance with the applicable
electrical engineering rules.
.Installation regulations for Modbus must be observed for
the wiring.
(For literature references, please refer to appendix A)
Make sure to respect electromagnetic compatibility (EMC) when installing
cables:
Signal and bus cables are susceptible to interference.
Electric power cables are interference sources.
.Lay cables being susceptible to inferference or sources of interference at
the highest possible distance from each other.
.The interference immunity of signal and bus cables increases if the cables
are laid close to the ground potential.
.Avoid long cables, if possible, or make sure that they are laid in locations
with low susceptibility to interference.
.Avoid long parallel paths with cables being either interference sources or
susceptible to interference.
3.1 Power supply (standard) For explosion-proof version (type designation: AMExB/AMExC), please refer
to page 8 or page 10.
.Check whether type of current, supply voltage, and frequency comply with
motor data (refer to name plate at motor).
.Loosen bolts (50.01) (figure A-1) and remove connection housing.
.Loosen screws (51.01) and remove socket carrier (51.0) from plug cover
(50.0).
.Insert cable glands suitable for connecting cables.
(The enclosure protection stated on the name plate is only ensured if suit-
able cable glands are used).
.Seal cable entries which are not used with suitable plugs.
.Connect cables according to order-related wiring diagram.
The wiring diagram applicable to the actuator is attached to the handwheel
in a weather-proof bag, together with the operation instructions. In case
the wiring diagram is not available, it can be obtained from AUMA (state
commission no., refer to name plate) or downloaded directly from the
Internet (www.auma.com).
A special parking frame (figure B-2) for protection against touching the bare
contacts and against environmental influences, in case the electrical
connection has been removed, is available.
4
Actuator controls AUMA MATIC AM/AMExB/AMExC
Modbus Short instructions
Figure A-1: Connection
50.0
50.01
51.0
51.01
Figure A-2: Parking frame (accessories)
Parking frame
Technical data Motor power connections1) Protective earth Control terminals
No. of contacts max. 6 (3 are used) 1 (leading contact) 50 pins/sockets
Marking U1, V1, W1, U2, V2, W2 1 to 50
Connecting voltage max. 750 V – 250 V
Nominal current max. 25 A – 16 A
Type of customer connection Screws Screw for ring lug Screws
Cross section max. 6 mm26 mm22.5 mm2
Material: Pin/socket carrier Polyamide Polyamide Polyamide
Contacts Brass (Ms) Brass (Ms) Brass, tin plated or gold plated (option)
1)Suitable for copper wires. For aluminium wires, please contact AUMA
Table 1: Technical data AUMA plug/socket connector for bus connection
