Hitachi SJ Series User Manual page 445

Chapter 12
Terminal input monitoring mode
• Monitors whether the input terminal functions [PLA] and [PLB] are turned on.
Normal rotation
pulse string input
Reverse rotation
pulse string input
Phase coefficient monitoring mode
• Input terminals [A] and [B] become available for pulse string inputs.
(1) Mode 0: [CA-91]=00 90° Phase difference pulse string
Pulse string
input
Pulse string
input
(2) Mode 1: [CA-91]=01 Normal and reverse rotation instruction + Pulse string
Pulse string
input
Normal and
reverse rotation
instruction
(3) Mode 2: [CA-91]=02 Normal rotation pulse string + Reverse rotation pulse string
Normal rotation pulse
string input
Reverse rotation
pulse string input
Terminal
[A]
Terminal
[B]
Number of
detected
pulses
Terminal [A]
Terminal [B]
Number of
detected
pulses
Terminal [A]
Terminal [B]
Number of
detected
pulses
Terminal [A]
Terminal [B]
Number of
detected
pulses
12-24-14
About the inverter function
Positive (+)
Positive (+) Negative (-)
Positive (+)
Negative (-)
Time
Time
Negative (-)
Time