Panasonic A4P Series Parameters for Protective function, External resistor but no, Remarks

[Setting]

Standard default : < >

Servo￿

Title

Setup￿

Unit

Function/Content

PrNo.

range

6C￿

External

0 to 3￿

–￿

With this parameter, you can select either to use the built-in regenerative

*

regenerative

for￿

resistor of the driver, or to separate this built-in regenerative resistor and

externally install the regenerative resistor (between RB1 and RB2 of

resistor set up

A, B-frame￿

Connector CN X2 in case of A to D-frame, between P and B2 of terminal

<3>￿

block in case of E, F-frame).

for￿

Regenerative resistor

￿

Regenerative processing and￿

Setup value￿

￿

regenerative resistor overload￿

C to F-frame￿

to be used

<0>￿

￿

￿

<0>

Regenerative processing circuit will be

(C, D, E and

￿Built-in resistor￿

activated and regenerative resistor overload

protection

will be triggered according to the

F-frame)￿

￿

built-in resistor (approx. 1% duty).￿

￿

￿

The driver trips due to regenerative overload

1￿

protection

(Err18),

when

regenerative

External resistor ￿processing

circuit is

activated

and its active

Setting

￿

￿

triggered.￿

￿

￿

ratio exceeds 10%, ￿

2￿

Regenerative processing circuit is activated,

External resistor ￿but no

regenerative

over-load

protection is

<3>￿

￿

Both regenerative processing circuit and

No resistor

regenerative protection are not activated, and

(A, B-frame)

built-in capacitor handles all regenerative

power.

<Remarks>￿

Install an external protection such as thermal fuse when you use the

external regenerative resistor. ￿

Otherwise, the regenerative resistor might be heated up abnormally and

result in burnout, regardless of validation or invalidation of regenerative

over-road protection.￿

<Caution>

￿

When you use the built-in regenerative resistor, never to set up other

value than 0. Don't touch the external regenerative resistor.￿

External regenerative resistor gets very hot, and might cause burning.

6D￿

Main power-off

35 to 1000￿

2ms

You can set up the time to detect the shutoff while the main power is kept

*

detection time

<35>

shut off continuously.￿

The main power off detection is invalid when you set up this to 1000.

6E

Emergency stop

0 to 500￿

%

You can set up the torque limit in case of emergency stop as below.￿

torque set up

<0>

• During deceleration with the setup of 8 or 9 of SV.Pr67 (Error response

at main power-off) ￿

• During deceleration with the setup of 8 or 9 of SV.Pr69 (Sequence at

Servo-OFF) ￿

Normal torque limit is used by setting this to 0.￿

<Caution>￿

The stop is not due to the emergency stop input (EMG-STP: CN X5 Pin 2).

Parameters for Protective function

Standard default : < >

Servo￿

Title

Setup￿

Unit

Function/Content

PrNo.

range

70

Position deviation

0 to 32767

￿ 256 x

• You can set up the excess range of position deviation.

￿

error level

<25000>

pulse

• Set up with the encoder pulse counts at the position control and with the

external scale pulse counts at the full-closed control. ￿

• Err24 (Position deviation excess protection) becomes invalid when you

set up this to 0.

72

Overload level

0 to 500￿

%

• You can set up the over-load level. The overload level becomes 115 [%]

<0>

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.

71