Omron SMARTSTEP A Series - Page 53

Chapter 2
2-27
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
Timing
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
Feed pulses
Forward rotation command
Reverse rotation command
t1 ≤ 0.1 µs
t2 > 3.0 µs
τ ≥ 2.0 µs
T ≥ 4.0 µs
(τ/T) × 100 ≤ 50 (%)
t1 t1t2 t2 t2
t1 t1
T
τ
Reverse pulses
Forward pulses
Forward rotation command Reverse rotation command
t1 ≤ 0.1 µs
t2 > 3.0 µs
τ ≥ 2.0 µs
T ≥ 4.0 µs
(τ/T) × 100 ≤ 50 (%)
T
τ
t2
t1 t1
Phase A pulses
Phase B pulses
Forward rotation command
Reverse rotation command
t1 ≤ 0.1 ms
τ ≥ 2.0 ms
T ≥ 4.0 ms
(τ/T) × 100 ≤ 50 (%)
t1 t1
T
τ