Yaskawa MP920 Motion Module - Manual (Page 420)

10.2 Using the CNTR-01 Module
10-19
10
* 2. Multiplication
Negative Logic 12-V Pull-up Collector Input:
Increments the count if pulse A is input when pulse B is at low level.
(Positive for frequency measurements.)
Decrements the count if pulse A is input when pulse B is at high level.
(Negative for frequency measurements.)
• A/B Mode
Positive or Negative Logic:
Increments the count when the phase of pulse A advances from that of pulse B.
(Positive for frequency measurements.)
Decrements the count when the phase of pulse A lags behind that of pulse B.
(Negative for frequency measurements.)
• Up-down Mode
Positive or Negative Logic:
Adds a pulse when pulse A is input. (Positive for frequency measurements.)
Subtracts a pulse when pulse B is input. (Negative for frequency measurements.)
Positive Logic:
×1: Counts at the rising edge of pulse A.
× 2: Counts at the rising and falling edges of pulse A.
× 3: Counts at the rising and falling edges of pulses A and B
Negative Logic:
×1: Counts at the falling edge of pulse A.
× 2: Counts at the rising and falling edges of pulse A.
× 3: Counts at the rising and falling edges of pulses A and B.