YASKAWA SGM H Series User Manual page 461

8 Operation
8.6.3 Position Reference
Reference Pulse Signal Form
Sign and pulse train input
(SIGN and PULS signal)
Maximum reference frequency:
500 kpps
(For open-collector output: 200 kpps)
CW pulse and CCW pulse
Maximum reference frequency:
500 kpps
(For open-collector output: 200 kpps)
Two-phase pulse train with 90°
phase differential (phase A and
phase B)
Maximum reference frequency
×1 input pulse multiplier: 500 kpps
×2 input pulse multiplier: 400 kpps
×4 input pulse multiplier: 200 kpps
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Table 8.1 Reference Pulse Input Signal Timing
Electrical Specifications
t1 t2
SIGN
t3
PULS
t4
τ
t5
T
Forward
reference
t1
T
CCW
τ
t2
CW
Forward
reference
t1 t2
Phase A
Phase B
τ
T
Forward reference
Phase B leads
phase A by 90 °
≤
t1，t2
≤
t7 t3，t7
t4，t5，t6 ＞ 3 µs
t6
τ ≥
1.0 µs
Reverse
τ
/T) × 100
(
reference
≤
t1，t2
t3 ＞ 3 µs
τ ≥
1.0 µs
τ
/T) × 100
(
t3
Reverse
reference
≤
t1，t2
τ ≥
1.0 µs
τ
/T) × 100 = 50%
(
Reverse reference
Phase B lags
phase A by 90 °
Remarks
Sign (SIGN)
0.1 ms
H = Forward
0.1 ms
reference
L = Reverse
reference
≤
50%
−
0.1 ms
≤
50%
Switching of
0.1 ms
the input pulse
multiplier
mode is done
with parameter
Pn200.0 set-
ting.