8 Operation
8.6.3 Position Reference
8-54
Table 8.1 Reference Pulse Input Signal Timing
Reference Pulse Signal Form Electrical Specifications Remarks
Sign and pulse train input
(SIGN and PULS signal)
Maximum reference frequency:
500 kpps
(For open-collector output: 200 kpps)
t1
，
t2
≤
0.1 ms
t3
，
t7
≤
0.1 ms
t4
，
t5
，
t6
＞
3
µ
s
τ
≥
1.0
µ
s
(
τ
/T)
×
100
≤
50%
Sign (SIGN)
H = Forward
reference
L = Reverse
reference
CW pulse and CCW pulse
Maximum reference frequency:
500 kpps
(For open-collector output: 200 kpps)
t1
，
t2
≤
0.1 ms
t3
＞
3
µ
s
τ
≥
1.0
µ
s
(
τ
/T)
×
100
≤
50%
−
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
t1
，
t2
≤
0.1 ms
τ
≥
1.0
µ
s
(
τ
/T)
×
100 = 50%
Switching of
the input pulse
multiplier
mode is done
with parameter
Pn200.0 set-
ting.
Forward
reference
Reverse
reference
t1 t2
t3
t4
t5 t6
t7
T
τ
SIGN
PULS
Forward
reference
Reverse
reference
t2
t3
T
τ
CW
CCW
t1
Phase B leads
phase A by 90
°
Phase B lags
phase A by 90
°
Forward reference
Reverse reference
Phase B
Phase A
t2
τ
T
t1
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