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Reading absolute data, Using battery for the sgdh servopack – Yaskawa MP940 User Manual

Page 318

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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