*3 The following table shows the minimum count pulse width for the RD62D2.
Pulse input
Waveform (in up count, duty
mode
ratio: 50%)
1-phase
multiple of 1
count command
1-phase
multiple of 2
count command
CW/CCW
ΦA
ΦB
2-phase
multiple of 1
ΦA
ΦB
2-phase
multiple of 2
ΦA
ΦB
2-phase
multiple of 4
ΦA
ΦB
8 POSITIONING MODULE AND PULSE I/O MODULE MIGRATION
304
8.2 Comparison of Positioning Module and Pulse I/O Module Specifications
T
ΦA
ΦB and
CH1 Down
(Y3)
T
ΦA
ΦB and
CH1 Down
(Y3)
T
T
t
T
t
T
t
Minimum count pulse cycle, T, and phase difference, t (s), at each counting
speed
8Mpps
4Mpps
2Mpps
T=0.5
T=0.5
T=1
T=0.5
T=0.5
t=0.125
T=0.5
T=1
t=0.125
t=0.25
T=0.5
T=1
T=2
t=0.125
t=0.25
t=0.5
1Mpps
500kpps
200kpps
T=1
T=2
T=5
T=2
T=4
T=10
T=1
T=2
T=5
T=1
T=2
T=5
t=0.25
t=0.5
t=1.25
T=2
T=4
T=10
t=0.5
t=1
t=2.5
T=4
T=8
T=20
t=1
t=2
t=5
100kpps
10kpps
T=10
T=100
T=20
T=200
T=10
T=100
T=10
T=100
t=2.5
t=25
T=20
T=200
t=5
t=50
T=40
T=400
t=10
t=100