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Parameter
Parameter
control
No.
Name
mode
Used by
40
manufacturer
Used by
41
manufacturer
Used by
42
manufacturer
Used by
43
manufacturer
44
Numerator of
*
output pulse
ratio
Denominator of
45
output pulse
*
ratio
A4P
Setting
range
P, F
1 – 32767
Defines the number of pulses from the pulse output (X5 OA+: Pin 11, OA-: Pin 12, OB+:
Pin 13 and OB-: Pin 14).
The change becomes enabled when the control power is turned on.
■ In the case of the output of encoder pulses (When the control mode is P and Servo
parameter No.46 is 0 or 1):
Servo parameter No.45=0: Servo parameter No.44 can be used to set the number of output
pulses per motor revolution for OA and OB.
Pulse output resolution per revolution = Servo parameter No.44 (numerator of output
pulse ratio) x 4
Servo parameter No.45≠0: the pulse output resolution per revolution is divided at any
ratio according to the following expression.
Pulse output resolution per revolution =
Note)
All
0 - 32767
- The encoder resolution is 131072[P/r] in the case of 17-bits absolute encoder, and
10000[P/r] in the case of 2500 P/r 5-core incremental encoder.
- The pulse output resolution per revolution cannot exceed the resolution of an encoder.
(In the case of the above setting, the pulse output resolution per revolution is same as
the resolution of an encoder.)
- Phase Z is output once every motor revolution.
When pulse output resolution per revolution calculated by the above expression is
multiples of 4, phase Z is output in synchronization with phase A. Otherwise, as it is
output based on the resolution of an encoder, phase Z is not synchronized with phase A
and its width becomes narrower than that of phase A.
When encoder resolution multiplied by
Pr
.
44
ｴﾝｺｰﾀﾞ分解能×
Pr
.
45
A
B
Z
■ In the case of the output of external scale pulses (When the control mode is F and
Servo parameter No.46 is 2 or 3),
Servo parameter No.45=0: No division
Servo parameter No.45≠0: the travel distance per output pulse is divided at any ratio
according to the following expression.
Travel distance per
output pulse
Note)
- The setting of Servo parameter No44＞Servo parameter No.45 is disabled.
(In the case of the above setting, there is no division.)
Note)
-
Phase Z of external scale is not reproduced
MOTOR COMPANY, MATSUSHITA ELECTRIC INDUSTRIAL CO.,LTD
Function/Description
Pr.44
(numerator
Pr.45
(denominat
Pr.44
is in multiples of 4
が 4 の倍数
Pr.45
A
B
Synchronized
Z
Pr.45
(denominat
or
of
output
=
Pr.44
(numerator
of
output
No. SR-DSV09485
of
output
pulse
ratio)
× Encoder resolution
or
of
output
pulse
ratio)
When encoder resolution multiplied by
Pr.44
Pr
.
44
ｴﾝｺｰﾀﾞ分解能×
が 4 の倍数でない
is not in multiples of 4
Pr.45
Pr
.
45
Out of synchronization
× Travel distance per
pulse
ratio)
external scale pulse
pulse
ratio)
- 32 -
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