Installing Twin-Head Magnetic Encoder (Mba405W Series) - Mitsubishi Electric CNC Specifications And Instruction Manual

Direct Drive Motor Specifications and Instruction Manual
6 Assembly and Installation

6.4 Installing Twin-head Magnetic Encoder (MBA405W Series)

CAUTION
1. Handle with care as this is a precision component. Especially, do not apply external force on the sensor head component
(thin metal film section) and the magnetized section (magnet) of the magnetic drum.
2. Pay attention not to apply excessive external force on the product by hauling the sensor head cable strongly or by
hanging the installation ring with holding the cable. Applying such force will cause a fault.
3. The magnetic drum has magnets in it. Pay attention so that any magnetic dust will not adhere on the drum. If any dust
adheres on it, remove it using air blow.
4. Do not make magnetic screw drivers or tools touched the magnetized section of the magnetic drum during installation.
5. Use iron screws (carbon steel, chromium molybdenum steel) for fixing the magnetic drum.
6. This product is equivalent of IP67 (IP67 is realized when cables are connected to all connectors). Note that, however, if
the liquid such as oil, cutting fluid or water is constantly splashed on the product, it may cause a fault. Make sure to
provide measures against splash on the machine side as much as possible.
7. Connect the preamp to the ground. Screw the preamp cabinet on the machine for grounding.
8. If the CN3 connector of the preamp is not used when using the product, leave the cap on it to prevent water from
entering.
9. Accuracy of this product has been adjusted as a set of magnetic drum, installation ring (with main head and sub head)
and preamp of the same serial No. So use this product as a set of those components. Note that normal accuracy cannot
be achieved if this is replaced with another set having a different serial No.
[Method for checking the serial No.]
Check the serial No. of magnetic drum, installation ring (with main head and sub head) and preamp with each
nameplate sticker attached on the following part.
< Preamp >
(1) Check part for preamp
X X X X X X X ENCODER MBX 405W-B X X X X
X X X X
Make sure that the serial Nos. (
10. This product compensates an offset deviation with age in analog signals.
< Magnetic drum / installation ring >
6 digits) of the nameplate stickers attached on the above three parts are the same.
47
(2) Check part for installation ring
(3) Check part for
magnetic drum
IB-1501068-C