APPLICATIONS
2.2.2 Position References cont.
— 2-16 —
(2) The error counter clear (CLR) signal must be ON for at least 20
μ
s. Otherwise, it be-
comes invalid.
Allowable Voltage Level and Timing for Reference Pulse Input
Reference Pulse Form
Electrical Specifications
Remarks
Sign + pulse train input
(SIGN + PULS signal)
Maximum reference
frequency: 450 kpps
¨
reference
©
reference
The signs for each
reference pulse are as
follows:
¨
: High level
©
: Low level
90
°
different two-phase
pulse train
(phase A + phase B)
Maximum reference
frequency
x 1 multiplier:
450 kpps
x 2 multiplier:
400 kpps
x 4 multiplier:
200 kpps
Phase B is 90
°
behind phase B
Phase A
Phase B
Phase B is 90
°
forward from phase B
Parameter Cn-02 (bits 3,
4 and 5) is used to
switch the input pulse
multiplier mode.
CCW pulse + CW pulse
Maximum reference
frequency: 450 kpps
CCW pulse
CW pulse
¨
reference
©
reference
SIGN
PULS
Clearing the Error Counter
Use the following procedure to clear the contents of the error counter.
→
Input CLR CN1-18
Error Counter Clear Input
For Position
Control
→
Input
/
CLR CN1-19
Error Counter Clear Input
For Position
Control
Setting the CLR signal to high level will set the following conditions:
•
Sets the error counter inside the Servopack to 0.
•
Disables position loop control.
2
Positions
Servopack
Clear
Position loop
error counter
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