Mitsubishi MELSEC-Q QD77MS, User Manual

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Chapter 3 Specifications and Functions
Signal name Pin No. Signal details
(+)
(HAH)
1A17
Manual pulse
generator/Incremental
synchronous encoder
A phase/PLS
(-)
(HAL)
1B17
(+)
(HBH)
1A18
Differential
type
Manual pulse
generator/Incremental
synchronous encoder
B phase/SIGN
(-)
(HBL)
1B18
Manual pulse
generator/Incremental
synchronous encoder
A phase/PLS
(HA) 1B19
Voltage-output/
open-collector
type
Manual pulse
generator/Incremental
synchronous encoder
B phase/SIGN
(HB) 1B20
(2) PLS/SIGN
Input the pulse signal for counting the increased/decreased pulse in the
pulse input (PLS). Input the signal for controlling forward run and reverse
run in the direction sign (SIGN).
1) "
Pr.22
Input signal logic selection
" is positive logic
• The motor will forward run when the direction sign is HIGH.
• The motor will reverse run when the direction sign is LOW.
2) "
Pr.22
Input signal logic selection
" is negative logic
• The motor will forward run when the direction sign is LOW.
• The motor will reverse run when the direction sign is HIGH.
[When increased] [When decreased]
+1 +1 +1+1 +1+1 -1 -1 -1 -1 -1 -1
Positioning
address Positioning
address
SIGN
PLS
HIGH
Positive
logic
SIGN
LOW
Negative
logic
PLS
LOW
Positive
logic
SIGN
PLS
HIGH
Negative
logic
SIGN
PLS