Panasonic Minas A4 Series - Gain Adjustment

224
Parameter Setup
7B
*
1 to 10000
<100>
16 x
external
scale
pulse
Setup of hybrid 
deviation excess
• You can setup the permissible gap (hybrid deviation) between the
present motor position and the present external scale position.
• The driver will trip with Err25 (Hybrid deviation excess protection) when
the deviation is generated which exceeds the permissible gap.

7C
*
0 to 1
<0>
–Reversal of 
direction of 
external scale
You can set up the logic of the absolute data of the external scale.
<Caution>
When you use the linear scale by other manufacture than Mitutoyo,
position data will be kept as it is with the setup of 0, and it will become as
a reversed signed position data with the setup of 1.
78
*
79
*
7A
*
0 to 32767
<0>



0 to 17
<0>



1 to 32767
<10000>
–




–




–
Numerator of 
external scale 
division


Multiplier of 
numerator of 
external scale 
division

Denominator of 
external scale 
division
You can setup the ratio between the encoder resolution and the external
scale resolution at full-closed control.
• Pr78 ≠ 0,
Setup the ratio between the external scale resolution and the encoder
resolution per one motor revolution according to the above formula.
<Caution>
• Upper limit of numerator value after calculation is 131072. Setup
exceeding this value will be invalidated, and 131702 will be the actual
numerator. 
• Pr78= <0> (default) 
Numerator equals to encoder resolution, and you can setup 
the external scale resolution per one motor revolution with Pr7A.
Encoder resolution per one motor revolution
External scale resolution per one motor revolution
Pr78 X 2
Pr79

Pr7A
=
Setup value

0

1
Content
Serial data will increase when the detection head travels
to the right viewed from the mounting side. (+ count)
Serial data will decrease when the detection head travels
to the right viewed from the mounting side. (– count)
72 0 to 500
<0>
%Setup of 
over-load level
• You can set up the over-load level. The overload level becomes 115 [%]
by setting up this to 0. 
• Use this with 0 setup in normal operation. Set up other value only when
you need to lower the over-load level. 
•
The setup value of this parameter is limited by 115[%] of the motor rating.
73 0 to 20000
<0>
r/minSetup of 
over-speed level
• You can set up the over-speed level. The over-speed level becomes 1.2
times of the motor max. speed by setting up this to 0.
• Use this with 0 setup in normal operation. Set up other value only when
you need to lower the over-speed level. 
• The setup value of this parameter is limited by 1.2 times of the motor
max. speed.
<Caution> 
The detection error against the setup value is ±3 [r/min] in case of the 7-wire
absolute encoder, and ±36 [r/min] in case of the 5-wire incremental encoder.
Standard default : < >
PrNo.
Setup
range
UnitTitle Function/Content
Standard default : < >
PrNo.
Setup
range
UnitTitle Function/Content
Parameters for Full-Closed Control
<Notes>
•For parameters which No. have a suffix of "*", changed contents will be validated when you turn on the
control power.