Mitsubishi HD-5000A Instruction Manual download pdf (Page 92)

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4. OPERATION

(2) Startup procedure

(a) Power on

1) Switch off the servo-on (SON).

2) When main circuit power/control circuit power is switched on, "PoS" (Current position) appears

on the servo amplifier display.

In the absolute position detection system, first power-on results in the absolute position lost

(AL.25) alarm and the servo system cannot be switched on. This is not a failure and takes place

due to the uncharged capacitor in the encoder.

The alarm can be deactivated by keeping power on for a few minutes in the alarm status and

then switching power off once and on again.

Also in the absolute position detection system, if power is switched on at the servo motor speed

of 500r/min or higher, position mismatch may occur due to external force or the like. Power must

therefore be switched on when the servo motor is at a stop.

(b) Test operation

Using jog operation in the "test operation mode" of the MR Configurator (Servo Configuration

Software), confirm that the servo motor operates at the slowest speed. (Refer to section 6.7.1, 7.8.2)

Set the parameters according to the structure and specifications of the machine. Refer to chapter 5

for the parameter definitions and to sections 6.4 and 7.6 for the setting method.

Parameter Name Setting Description

No.0

Command system, regenerative option

selection

No.1 Feeding function selection

No.2 Function selection 1

Absolute value command system.

MR-RB032 regenerative option is

used.

When forward rotation start (ST1) is

valid, address is incremented in CCW

direction.

Since command resolution is 10 times,

feed length multiplication factor of 10

times is selected.

Absolute position detection system.

No.4 Electronic gear numerator (CMX) 32768

From calculation result of formula (4.1)

No.5 Electronic gear denominator (CDV) 1250

From calculation result of formula (4.1)

After setting the above parameters, switch power off once. Then switch power on again to make the

set parameter values valid.

(d) Program setting

Set the program according to the operation pattern. Refer to section 4.2 for the program definitions

and to sections 4.2 and 6.5 for the setting method.

Program Description

SPN (2500)

STA (200)

STB (300)

MOV (20000)

STOP

Speed (Motor speed) 2500 [r/min]

Acceleration time constant 200 [ms]

Deceleration time constant 300 [ms]

Absolute move command 20000 [

STM

Program end

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Mitsubishi HD-5000A Instruction Manual Page 92

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