Yaskawa MP940 - Manual (Page 318)

Absolute Position Detection
7.1.2 Structure of Absolute Position Detection
7-4
The following table shows the conditions requiring a battery.
Reading Absolute Data
When power is turned ON, absolute data is read to the SERVOPACK as well as to the
MP940 where it is used to automatically calculate the absolute position and set the machine
coordinate system. Therefore, the absolute machine position can be detected and automatic
operation can begin immediately after power is turned ON.
„ Using Battery for the SGDH SERVOPACK
To save the absolute encoder’s position information in memory even when the power supply
is turned OFF, you must use a backup battery. Prepare the following recommended battery.
JZSP-BA01 Lithium battery (battery with connector)
ER3 V 3.6 V1000 mAh, manufactured by Toshiba Battery Co., Ltd.
Fig 7.1 30-W to 5.0-kW SERVOPACKs
Fig 7.2 6.0-kW and 7.5-kW SERVOPACKs
SGDH MP940 Application
No No • Flash memory operation
• Using an incremental encoder
Using an absolute encoder as an incremental encoder
No Yes • Flash memory operation disabled
• Using an incremental encoder
Using an absolute encoder as an incremental encoder
Yes Yes • Flash memory operation
• Using an absolute encoder
Battery mounting space
Battery connector (CN8)
SERVOPACK 200V
SGDH-
YASKAWA
CN3
CN8
CN5
Battery connector (CN8)
Battery mounting space