Filter
Top Products
4 - 9
4. STARTUP
Check for a position shift in the following sequence.
1) When Q
P
Noise entered the pulse train signal wiring between positioning unit and servo amplifier, causing
pulses to be miss-counted. (Cause A)
Make the following check or take the following measures.
Check how the shielding is done.
Change the open collector system to the differential line driver system.
Run wiring away from the power circuit.
Install a data line filter. (Refer to section 12.17 (2)(a).)
2)
CMX
CDV
P C
When
During operation, the servo-on (SON) or forward/reverse rotation stroke end was switched off or the
clear (CR) and the reset (RES) switched on. (Cause C)
If a malfunction may occur due to much noise, increase the input filter setting (parameter No.PD19).
3) When C
M
Mechanical slip occurred between the servo motor and machine. (Cause B)
4.3 Startup in speed control mode
Make a startup in accordance with section 4.1. This section provides the methods specific to the speed control
mode.
4.3.1 Power on and off procedures
(1) Power-on
Switch power on in the following procedure. Always follow this procedure at power-on.
1) Switch off the servo-on (SON).
2) Make sure that the Forward rotation start (ST1) and Reverse rotation start (ST2) are off.
3) Switch on the main circuit power supply and control circuit power supply.
At power-on, "88888" appears instantaneously, but it is not an error.
When main circuit power/control circuit power is switched on, the display shows "r (servo motor
speed)", and in two second later, shows data.
(2) Power-off
1) Switch off the Forward rotation start (ST1) or Reverse rotation start (ST2).
2) Switch off the Servo-on (SON).
3) Switch off the main circuit power supply and control circuit power supply.