4 - 4
Chapter 4 Installation, Wiring and Maintenance of the Product
(1) LED (upper part on the front)
QD77GF16
QD77GF8
RUN
ERR.
AX
L ERR.
D LINK
RD
SD
QD77GF16
RUN
ERR.
AX
L ERR.
D LINK
RD
SD
QD77GF4
RUN
ERR.
AX
L ERR.
D LINK
RD
SD
QD77GF8
QD77GF4
LED Display
Description
LED Display
Description
RUN
LED is
OFF.
RUN
SD
ERR.
AX
D LINK
RD
L ERR.
Hardware failure,
watch dog timer error
SD LED
is ON.
RUN
SD
ERR.
AX
D LINK
RD
L ERR.
Sending data.
RUN
LED is
ON.
ERR.
LED is
OFF.
RUN
SD
ERR.
AX
D LINK
RD
L ERR.
Operates normally.
SD LED
is OFF.
RUN
SD
ERR.
AX
D LINK
RD
L ERR.
Data not sent
ERR.
LED is
flashing.
AX LED
is OFF.
RUN
SD
ERR.
AX
D LINK
RD
L ERR.
Token pass not
executed for some
stations
D LINK
LED is
ON.
RUN
SD
ERR.
AX
D LINK
RD
L ERR.
Data link in
operation (cyclic
transmission in
progress)
ERR.
LED is
flashing.
AX LED
is
flashing.
RUN
SD
ERR.
AX
D LINK
RD
L ERR.
Axis error
D LINK
LED is
flashing.
RUN
SD
ERR.
AX
D LINK
RD
L ERR.
Data link in
operation (cyclic
transmission
stopped)
ERR.
LED is
ON.
RUN
SD
ERR.
AX
D LINK
RD
L ERR.
System error,
CPU stop error,
error in all stations,
station number
duplication,
invalid network
parameter
D LINK
LED is
OFF.
RUN
SD
ERR.
AX
D LINK
RD
L ERR.
Data link not
performed
(disconnected)
AX LED
is ON.
RUN
SD
ERR.
AX
D LINK
RD
L ERR.
Axis operation in
progress
RD LED
is ON.
RUN
SD
ERR.
AX
D LINK
RD
L ERR.
Receiving data.
AX LED
is OFF.
RUN
SD
ERR.
AX
D LINK
RD
L ERR.
An axis stops or is on
standby.
RD LED
is OFF.
RUN
SD
ERR.
AX
D LINK
RD
L ERR.
Data not received
L ERR.
LED is
ON.
RUN
SD
ERR.
AX
D LINK
RD
L ERR.
Frame error
detection
L ERR.
LED is
OFF.
RUN
SD
ERR.
AX
D LINK
RD
L ERR.
Frame error not
detected
: ON,
: Flashing, : OFF
Summary of Contents for MELSEC Q Series
Page 2: ......
Page 30: ...A 28 MEMO ...
Page 32: ...MEMO ...
Page 97: ...3 29 Chapter 3 Specifications and Functions MEMO ...
Page 102: ...3 34 Chapter 3 Specifications and Functions MEMO ...
Page 282: ...5 162 Chapter 5 Data Used for Positioning Control MEMO ...
Page 374: ...7 16 Chapter 7 Memory Configuration and Data Process MEMO ...
Page 376: ...MEMO ...
Page 400: ...8 24 Chapter 8 HPR Control MEMO ...
Page 425: ...9 25 Chapter 9 Major Positioning Control MEMO ...
Page 528: ...9 128 Chapter 9 Major Positioning Control MEMO ...
Page 554: ...10 26 Chapter 10 High Level Positioning Control MEMO ...
Page 586: ...11 32 Chapter 11 Manual Control MEMO ...
Page 800: ...16 54 Chapter 16 Troubleshooting MEMO ...
Page 830: ...Appendix 30 Appendices MEMO ...
Page 833: ......