Yaskawa SGDB - Manual (Page 84)

APPLICATIONS OF Σ-SERIES PRODUCTS
3.2.2 Inputting Position Reference
72
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 A
Phase B
Phase B is 90°
forward from phase B
Phase B is 90°
behind 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
J Cleaning the Error Counter
The following describes how to clear the error counter.
→ Input CLR 1CN-15
Error Counter Clear Input For Position
Control Only
→ Input /CLR 1CN-14
Error Counter Clear Input For Position
Control Only
Setting the CLR signal to high level does the fol-
lowing:
• Sets the error counter inside the SERVOPACK
to 0.
• Prohibits position loop control.
Use this signal to clear the error counter from the
host controller.
Bit A of memory switch Cn-02 can be set so that the error counter is cleared only once
when the leading edge of an input pulse rises.
3
SGDB SERVOPACK
Clear
Position loop
error counter