General Information
About the Device
«EC frameless DT» Installation Manual
mmag | 2021-12 | rel10341
1-5
1.2
About the Device
The direct drive «EC frameless DT» is a high-performance, high-torque, dynamic brushless DC internal
rotor motor (BLDC motor). It is available in various sizes and is designed to be incorporated into a specially
adapted outer body that serves both as the motor’s supporting structure and as torque-carrying device.
The «EC frameless DT» composes two main parts:
•
Stator with electric connections
; for installation into a customer-provided outer body (such as
housing, machine structure, or carrier system)
•
Magnetic rotor
; for on-site assembly with the installed stator and the customer-provided torque-
carrying device
Outer body, motor shaft, and bearings are not part of the «EC frameless DT»’s scope of delivery and are
being designed for a particular case of application by the customer.
Important note on the design
The «EC frameless DT» is a sensorless motor and does not feature any Hall sensor signals. As an option,
maxon offers the «TSX MAG» encoder.
1.3
About the Safety Precautions
Safety first—
always!
BY PRINCIPLE, THE «EC FRAMELESS DT» COMPRISES PARTS THAT PRODUCE STRONG MAG-
NETIC FIELDS. IT IS THEREFORE MOST IMPORTANT THAT YOU ARE AWARE OF THE CONSE-
QUENCES OF THESE MAGNETIC FORCES, THAT YOU TAKE THE APPROPRIATE PRECAUTION-
ARY MEASURES, AND THAT YOU COMMUNICATE THIS FACT TO PERSONS IN YOUR VICINITY!
READ THE FOLLOWING INSTRUCTIONS CAREFULLY BEFORE YOU ENGAGE WITH ANY WORK
AND FOLLOW THE INSTRUCTIONS GIVEN AT ALL TIMES!
•
Make sure that you have read and understood the note “READ THIS FIRST” on page 2!
•
Do not engage with any work unless you possess the stated skills (
•
Consult
chapter “1.1.4 Symbols & Signs” on page 3 to understand the subsequently used indica-
tors!
•
You must observe any regulation applicable in the country and/or at the site of implementation with
regard to health and safety/accident prevention and/or environmental protection!
DANGER
High voltage and/or electrical shock
Touching live wires causes death or serious injuries!
• Consider any power cable as connected to live power, unless you have proven the opposite!
• Make sure that neither end of cable is connected to live power!
• Make sure that the power source cannot be engaged while work is in process!
• Obey lock-out/tag-out procedures!
• Make sure to securely lock any power engaging equipment against unintentional engagement and tag
it with your name!
