Absolute Encoder Setup And Reinitialization - YASKAWA SGDV series User Manual

4 Operation

4.5.4 Absolute Encoder Setup and Reinitialization

Installing a Battery in the Host Controller
1. Turn ON the control power supply to only the SERVOPACK and converter.
2. Remove the old battery and mount the new battery.
3. After replacing the battery, turn OFF the control power supply to clear the absolute encoder battery error
alarm (A.830).
4. Turn ON the control power supply again.
5. Check that the alarm display has been cleared and that the SERVOPACK and converter operate normally.
4.5.4

Absolute Encoder Setup and Reinitialization

• The rotational data will be a value between -2 and +2 rotations when the absolute encoder setup is exe-
cuted. The reference position of the machine system will change. Set the reference position of the host
controller to the position after setup.
If the machine is started without adjusting the position of the host controller, unexpected operation may
cause injury or damage to the machine. Take sufficient care when operating the machine.
Setting up and reinitialization of the absolute encoder are necessary in the following cases.
• When starting the machine for the first time
• When an encoder backup error alarm (A.810) is generated
• When an encoder checksum error alarm (A.820) is generated
• When initializing the rotational serial data of the absolute encoder
Set up the absolute encoder with Fn008.
(1) Precautions on Setup and Reinitialization
• The write prohibited setting parameter (Fn010) must be set to Write permitted (P.0000).
• Set up or reinitialize the encoder when the servomotor power is OFF.
• If the following absolute encoder alarms are displayed, cancel the alarm by using the same method as the set
up (initializing) with Fn008. They cannot be canceled with the SERVOPACK alarm reset.
• Encoder backup error alarm (A.810)
• Encoder checksum error alarm (A.820)
• Any other alarms (A.8
power.
(2) Procedure for Setup and Reinitialization
Follow the steps below to setup or reinitialize the absolute encoder.
Step
1
2
3
4-40
) that monitor the inside of the encoder should be canceled by turning OFF the
Panel Display
- F U N C T I O N -
B B
F n 0 0 6 : A l m H i s t C l r
F n 0 0 8 : M t u r n C l r
F n 0 0 9 : R e f A d j
F n 0 0 A : V e l A d j
B B
M u l t i t u r n C l e a r
P G C L 1
B B
M u l t i t u r n C l e a r
P G C L 5
CAUTION
Keys
Press the
press the
Press the
Fn008.
Keep pressing the
changed to "PGCL5."
Description
Key to select the utility function. And
or Key to select the Fn008.
Key to view the execution display of
Key until "PGCL1" is