Panasonic minas a4 series Instruction Manual page 220

Parameter Setup
PrNo. Title
46 Reversal of pulse
*
output logic
47 Z-phase setup of
*
external scale
48
1st numerator of
electronic gear
49 2nd numerator of
electronic gear
4A Multiplier of
electronic gear
numerator
4B Denominator of
electronic gear
218
Setup
range
0 to 3 You can set up the B-phase logic and the output source of the pulse output (X5 OB+
: Pin-48, OB– : Pin-49). With this parameter, you can reverse the phase relation
<0>
between the A-phase pulse and the B-phase pulse by reversing the B-phase logic.
Setup A-phase
value
B-phase(OB)
<0>, 2
non-reversal
B-phase(OB)
1, 3
reversal
Pr46
<0>
1
2 *1
3 *1
*1 The output source of Pr46=2, 3 is valid only at full-closed control.
0 to 32767 You can setup the interval of Z-phase output in the A-phase output pulses of the
external scale (before quadruple), when you use the external scale as an output
<0>
source for the pulse output. (Pr02, (Control mode setup) is 6 and Pr46 (Reversal of
pulse output logic) is 2 or 3.)
• when Pr47 = <0> (default),
no Z-phase is fed out of the external scale.
• when Pr47 = 1 to 32767,
Z-phase will be fed out synchronizing with A-phase when the work crosses the
absolute position of 0 at first time after the control power on. After this, Z-phase
will be fed out at the intervals set with this parameter.
Electronic gear function-related (Pr48 to 4B)
0 to 10000
Electronic gear (Command pulse division/multiplication) function
• Purpose of this function
<0>
(1) You can set up any motor revolution and travel per input command unit.
(2) You can increase the nominal command pulse frequency when you cannot
0 to 10000
obtain the required speed due to the limit of pulse generator of the host controller.
<0>
• Block diagram of electronic gear
Command
0 to 17
pulse
<0>
f
0 to 10000
<10000>
• "Numerator" selection of electronic gear
*1 : Select the 1st or the 2nd with the command electronic gear input switching
(DIV : CN X5, Pin-28)
DIV input open
DIV input connect to COM–
The electronic gear ratio is set with the formula below.
• when the numerator is <0> (Default) :Numerator (Pr48,49)X2
Electronic gear ratio =
• when numerator ≠ 0 :
Electronic gear ratio =
<Caution>
In actual calculation of numerator (Pr48, Pr49) X2
+1) becomes the max. value.
Function/Content
at motor CCW rotation
(OA)
B-phase logic
Non-reversal
Reversal
Non-reversal
Reversal
Multiplier (Pr4A)
1st numerator (Pr48)
*1
x 2
2nd numerator (Pr49)
*1
Denominator (Pr4B)
Selection of 1st numerator (Pr48)
Selection of 2nd numerator (Pr49)
ically set equal to encoder resolution.
Encoder resolution
Command pulse counts per one revolution (Pr48)
Numerator of command
electronic gear (Pr48,49)
Denominator of command electronic gear (Pr4B)
Standard default : < >
at motor CW rotation
Output source
Encoder position
Encoder position
External scale position
External scale position
Internal
+
command
Deviation
counter
F
–
External scale
Feed back
pulse
(Resolution)
Pr4A ) is automat-
Multiplier of command
div/multiple numerator (Pr4A)
x 2
Pr4A , 4194304 (Pr4D setup value