Mitsubishi Electric QD77MS User Manual page 100

Signal name
Manual pulse
generator/Incremental
synchronous encoder
A phase/PLS
Differential-
output type
Manual pulse
generator/Incremental
synchronous encoder
B phase/SIGN
Manual pulse
generator/Incremental
synchronous encoder
Voltage-output
A phase/PLS
type/
open-collector
Manual pulse
type
generator/Incremental
synchronous encoder
B phase/SIGN
Pin No.
HAH
1A17
(A+)
(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
HAL
run in the direction sign (SIGN).
1B17
(A-)
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
HBH
1A18
• The motor will forward run when the direction sign is LOW.
(B+)
• The motor will reverse run when the direction sign is HIGH.
[When increased]
HBL
1B18
(B-)
Positive
logic
HA
1B19
Negative
(A)
logic
Positioning
address
HB
1B20
(B)
3 - 28
Chapter 3 Specifications and Functions
Signal details
PLS
HIGH
SIGN
PLS
LOW
SIGN
+1 +1+1 +1+1 +1
[When decreased]
PLS
Positive
LOW
logic
SIGN
PLS
Negative
logic
HIGH
SIGN
Positioning
-1 -1 -1
address
-1 -1 -1