Sigma II User’s Manual
Chapter 5: Parameter Settings and Functions
5-20
Example of I/O Signal Generation Timing
Note: 1.
In order for the input pulse to register, the interval from the time the servo ON signal is turned
ON until a reference pulse is entered must be a minimum of 40ms.
2.
The error counter clear signal must be on for at least 20
µ
s.
Reference Pulse Input Signal Timing
Reference Pulse Form
Electrical Specifications
Sign + pulse train input
(SIGN + PULS signal)
Maximum reference fre-
quency
:
500kpps
(200kpps open-collector
output)
t1, t2
≤
0.1µs
t3, t7
≤
0.1µs
t4, t5, t6 > 3µs
τ ≥
1.0µs
(
τ/
T)
×
100
≤
50%
Sign (SIGN)
H = Forward reference
L = Reverse reference
CW pulse and CCW
pulse
Maximum reference fre-
quency: 500kpps
(200kpps open-collector
output)
t1, t2
≤
0.1µs
t3 > 3µs
τ
≥
1.0µs
(
τ/
T)
×
100
≤
50%
—
Two–phase pulse train
with 90
°°
phase differen-
tial (A phase + B phase)
Maximum reference fre-
quency
×
1: 500kpps
(200kpps open-collector
output)
×
2: 400kpps
×
4: 200kpps
t1, t2
≤
0.1µs
τ
≥
1.0µs
(τ/
T)
×
100 = 50%
Parameter Pn200.0
is used to switch the
input pulse multiplier
mode.
Servo ON
Baseblock
Sign+pulse
train
Release
PG pulse
CN1-1
1
CN1-
7
PAO
PBO
t6
t1
≤
30ms
t2
≤
6ms
(when parameter
Pn506 is set to 0)
t3
≥
40ms
t4, t5, t6
≤
2ms
t
7 ≥
20ms
t7
t2
t1
t3
t4
t5
t6
T
τ
Forward
reference
Reverse
reference
SIGN
PULS
Forward
reference
Reverse
reference
t2
t1
t3
T
τ
CCW
CW
Forward
reference
Reverse
reference
t2
t1
T
τ
A phase
B phase
B phase leads
A phase by 90°
B phase lags
A phase by 90°