Omron SMARTSTEP A Series User Manual page 53

Standard Models and Specifications
Command Pulse Timing
The following wave forms are for positive logic. Conditions are the same for negative logic.
Command pulse
mode
Feed pulse and direc-
tion signal
Maximum input fre-
quency: 250 kpps
Reverse pulse and for-
ward pulse
Maximum input fre-
quency: 250 kpps
90 ° phase difference
signals
Maximum input fre-
quency:
× 1:
Line driver: 250 kpps
× 2:
Line driver: 250 kpps
× 4:
Line driver: 187.5 kpps
Direction signals
t1
Feed pulses
Forward rotation command
Reverse pulses
Forward pulses
t1
Phase A pulses
t1
Phase B pulses
τ
Timing
Forward rotation command
t2
τ
t1 t1
T
t2
t1
τ
T
Forward rotation command
t1
T
Chapter 2
Reverse rotation command
t2 t1 t2
t1 ≤ 0.1 µs
t2 > 3.0 µs
τ ≥ 2.0 µs
T ≥ 4.0 µs
(τ/T) × 100 ≤ 50 (%)
Reverse rotation command
t1 ≤ 0.1 µs
t2 > 3.0 µs
τ ≥ 2.0 µs
T ≥ 4.0 µs
(τ/T) × 100 ≤ 50 (%)
Reverse rotation command
t1 ≤ 0.1 ms
τ ≥ 2.0 ms
T ≥ 4.0 ms
(τ/T) × 100 ≤ 50 (%)
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