Clr (Position Deviation Clear) Signal Function And Settings - YASKAWA SGD7S Product Manual

6.6 Position Control

6.6.2 CLR (Position Deviation Clear) Signal Function and Settings

6.6.2 CLR (Position Deviation Clear) Signal Function and Set-
tings
The CLR (Position Deviation Clear) signal is used to clear the deviation counter in the SERVO-
PACK.
As long as the CLR signal is ON, the deviation counter will be 0, so a position loop will not be
formed.
Term
CLR (Position Deviation Clear) Signal
Type
Input
Setting the Form of the CLR (Position Deviation Clear) Sig-
nal
You set the CLR signal form to use to clear the deviation counter in Pn200 = n.X (Clear
Signal Form).
Pn200
Information
Setting the Clear Operation (Pn200 = n.X)
This parameter determines when the position error should be set to zero according to the con-
dition of the SERVOPACK. Set Pn200 = n.X (Clear Operation).
Pn200
6-32
Deviation counter
The deviation counter counts the deviation between the reference input pulses and the feedback
pulses from the encoder (i.e., the accumulated pulses).
Signal Connector Pin No.
CLR CN1-15
/CLR CN1-14
Parameter Reference Form
Clear position deviation
n.0
when the signal is at high
(default setting)
level.
Clear position deviation
 
n. 1 on the rising edge of the
signal.
Clear position deviation
 
n. 2 when the signal is at low
level.
Clear position deviation
 
n. 3 on the falling edge of the
signal.
The pulse width of the CLR signal must meet the following condition.
• If Pn200 = n.X is set to 0 or 2, the width of the CLR signal must be at least 250 μs to
reset the deviation counter.
• If Pn200 = n.X is set to 1 or 3, the width of the CLR signal must be at least 20 μs to
reset the deviation counter.
Parameter
 
n. 0
Clear position deviation at a base block (at
servo OFF or when alarm occurs).
(default setting)
Do not clear position deviation. The position
 
n. 1 deviation is cleared only with CLR (Clear Posi-
tion Deviation) signal.
 
n. 2 Clear position deviation when an alarm occurs.
Position deviation clear input
Clear Timing
ON
CLR
Cleared.
(CN1-15)
ON
CLR
(CN1-15)
Cleared here just once.
CLR OFF
(CN1-15)
Cleared.
OFF
CLR
(CN1-15)
Cleared here just once.
Meaning
Name
When
Classification
Enabled
After restart Setup
When Enabled Classification
After restart Setup