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1 Installation
MITSUBISHI CNC
(3) For Z-phase signal detection
After turning the encoder power ON, Z-phase signal is required to be detected by the main head (Z-phase signal
position mark is required to pass the main head). For the device configuration which the magnetic drum cannot
drive more than one rotation, install the encoder so that Z-phase can pass the main head in the shaft stroke.
(4) For the rotation direction of the encoder
Seeing a encoder from the upper surface as shown below, when the magnetic drum rotates clockwise is the forward
run. Confirm the rotation direction of the encoder and motor by reference to each motor specifications.
(5) For MBA405W (absolute encoder)
The initial setup operation is required after the operation is enabled for NC system to connect MBA405W to the
servo drive unit. Refer to "4.2.2 Setting of Machine Side Encoder" for details.
The initial setup is required only for the first time after installing the encoder to the machine.
Main head
Z-phase signal position mark
Magnetic drum
Forward run