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5 BASIC USAGE
5 BASIC USAGE
5.1 Understanding the Pulse Input and Counting Method
5.1.1 Types of pulse input methods
Pulse input method
1-phase multiple of 1
5
1-phase multiple of 2
CW/CCW
2-phase multiple of 1
2-phase multiple of 2
2-phase multiple of 4
5 - 1
This section explains the basic usage of the QD62 (E/D).
Six types of the pulse input methods are available. These include 1 phase multiple of
1, 1 phase multiple of 2, CW/CCW pulse input, 2 phase multiple of 1, 2 phase multiple
of 2, and 2 phase multiple of 4. The following table shows the pulse input methods and
count timings.
For addition count
For subtraction count
For addition count
For subtraction count
For addition count
For subtraction count
For addition count
For subtraction count
For addition count
For subtraction count
For addition count
For subtraction count
Count timing
φ A
Count at φ A rise (
φ B
φ B, Y03 (Y0B) are OFF.
Y03
(Y0B)
φ A
Count at φ A fall (
φ B
φ B, Y03 (Y0B) are ON.
Y03
(Y0B)
φ A
Count at φ A rise (
φ B
φ B, Y03(Y0B) are OFF
Y03
(Y0B)
φ A
Count at φ A rise (
φ B
φ B, Y03(Y0B) are ON
Y03
(Y0B)
φ A
Count at φ A rise (
φ B is OFF
φ B
φ A
φ A is OFF
Count at φ B rise (
φ B
φ A
Count at φ A rise (
φ B
φ A
Count at φ A fall (
φ B
φ A
Count at φ A rise (
Count at φ A fall (
φ B
φ A
Count at φ A rise (
Count at φ A fall (
φ B
Count at φ A rise (
φ A
Count at φ A fall (
Count at φ B rise (
φ B
Count at φ B fall (
Count at φ A rise (
φ A
Count at φ A fall (
Count at φ B rise (
φ B
Count at φ B fall (
MELSEC-Q
)
)
) and fall (
)
) and fall (
)
)
)
) when φ B is OFF
) when φ B is OFF
) when φ B is OFF
) when φ B is ON
) when φ B is ON
) when φ B is OFF
) when φ B is OFF
) when φ B is ON
) when φ A is ON
) when φ A is OFF
) when φ B is ON
) when φ B is OFF
) when φ A is OFF
) when φ A is ON
5 - 1
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