8.7 Absolute Encoders
8-29
Operation
8
Battery Replacement Procedure
1. Turn ON the control power supply of the
Σ
-V-SD driver only.
2. Remove the old battery from the CN8 of the power regeneration converter and mount the new battery
(model: BA000518).
3. 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
Σ
-V-SD driver operates normally.
8.7.4
Absolute Encoder Setup
Setting up the absolute encoder is 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 using SigmaWin for
Σ
-V-SD (MT).
Setup (Initialization) can be performed using EtherCAT (CoE) command (Object 2310h:1).
For EtherCAT (CoE) command, refer to
Σ
-V-SD series User’s Manual For Command Profile EtherCAT (CoE)
Communications Reference
(manual no.: SIEP S800000 95).
Before removing the battery or the encoder cable, turn ON the control power supply of
the
Σ
-V-SD driver. If the power is not turned ON first, the data in the absolute encoder
will be lost.
Battery Connector
Battery
CN8
CAUTION
• 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.