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MELSEC-Q
4 INSTALLATION, WIRING AND MAINTENANCE OF THE PRODUCT
4.1.2 Names of each part
(1) The part names of the QD75 are shown below:
QD75P4
RUN
ERR
AX1
AX1
AX2
AX3
AX4
AX2
AX3
AX4
For QD75P4
(1)
(2)
(3)
QD75D4
RUN
ERR
AX1
AX1
AX2
AX3
AX4
AX2
AX3
AX4
For QD75D4
(1)
(2)
(3)
(4)
No. Name Details
(1) RUN indicator LED, ERR indicator LED
(2) Axis display LED (AX1 to AX4)
Refer to the next page.
(3) External device connector
Connector for connection with the drive unit, mechanical
system input or manual pulse generator. (40-pin connector)
AX1: Axis 1, AX2: Axis 2, AX3: Axis 3, AX4: Axis 4
For details, refer to Section 3.4.2 "Signal layout for external
device connection connector".
(4)
Differential driver common terminal
(Differential driver output system (QD75D1,
QD75D2, QD75D4) only)
Terminal connected to the differential receiver common of the
drive unit. For details, refer to Section 4.3.2 "Wiring of the
differential driver common terminal".