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Periodic Maintenance of Battery for the Absolute Pulsecoder Supplement to Manual Page 2

Supplement to Manual
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DESCRIPTIONDESIGNDATE EDIT
PERIODIC MAINTENANCE OF
BATTERY FOR THE ABSOLUTE
PULSECODER
B-65285E/03-01
FANUC LTD
PERIODIC MAINTENANCE OF BATTERY FOR THE ABSOLUTE PULSECODER
1. BATTERY FOR THE ABSOLUTE PULSECODER
The battery unit for the absolute Pulsecoder can be connected using [Connection scheme 1] and
[Connection scheme 2] explained below. Refer to Subsection 9.3.2.6, "Battery" in "FANUC
SERVO AMPLIFIER αi series Descriptions (B-63282EN)" for details.
[Connection scheme 1]
Supplying power from one battery unit to more than one SVM
PSM
CXA2A
SVM SVM
Battery case
A06B-6050-K060
Battery
A06B-6050-K061
Connector
A06B-6110-K211
CXA2A CXA2A
CXA2B CXA2B
-
If a low battery voltage or a battery voltage of 0 V is indicated by an APC (absolute
Pulsecoder) alarm, replace the battery.
If a battery voltage of 0 V is indicated, you need to make a zero point return.
- The absolute Pulsecoder of the αis/αi series servo motor is incorporated with a backup
capacitor as standard. This backup capacitor enables an absolute position detection to be
continued for about 10 minutes. Therefore, no zero point return need be performed if the
time during which servo amplifier power is kept off for battery replacement is within 10
minutes.
On the contrary, the absolute Pulsecoder of the standard α series servo motor is not
incorporated with a backup capacitor. Be careful when replacing the battery for this
Pulsecoder. See [Caution No. 1 for battery replacement] at the end of this section for
details.
- The service life of the batteries is about two years if they are used in a six-axis
configuration with αis/αi series servo motors and one year if they are used in a six-axis
configuration with α series servo motors.
FANUC recommends that you replace the batteries periodically according to the battery
service life.
- The battery unit consists of four R20 alkaline batteries. Commercial batteries can be used
in the battery unit. The optional battery offered by FANUC is A06B-6050-K061.
WARNING
1 Do not connect more than one battery to the same BATL (B3) line. If
the output voltage is different between the batteries, they may be
short-circuited, resulting in the batteries becoming very hot.
2 Install the battery with correct polarity. If the battery is installed with
incorrect polarity, it may overheat, blow out, or catch fire.
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Contents Summary of Periodic Maintenance of Battery for the Absolute Pulsecoder Supplement to Manual

  • Page 1PERIODIC MAINTENANCE OF BATTERY FOR THE ABSOLUTE PULSECODER 1.Type of applied technical documents Name PERIODIC MAINTENANCE OF BATTERY FOR THE ABSOLUTE PULSECODER Spec.No./Ver. B-65285E/03 2.Summary of change Group Name / Outline New,Add Applicable Correct,Del Date Basic Function Optional Function U
  • Page 2PERIODIC MAINTENANCE OF BATTERY FOR THE ABSOLUTE PULSECODER 1. BATTERY FOR THE ABSOLUTE PULSECODER The battery unit for the absolute Pulsecoder can be connected using [Connection scheme 1] and [Connection scheme 2] explained below. Refer to Subsection 9.3.2.6, "Battery" in "FANUC SERVO AMPLIFIER αi
  • Page 3[Connection scheme 2] (1) Incorporating each SVM with batteries (Models other than SVM1-360i,SVM1-180HVi, and SVM1-360HVi) SVM SVM Battery Case Battery Case A06B-6114-K505 A06B-6114-K505 Battery Battery A06B-6114-K504 A06B-6114-K504 CX5X CX5X (2) Incorporating each SVM with batteries (Models SVM1-36
  • Page 4- If a low battery voltage or a battery voltage of 0 V is indicated by an APC (absolute Pulsecoder) alarm, replace the battery (A06B-6114-K0504). If a battery voltage of 0 V is indicated, you need to make a zero point return. - The absolute Pulsecoder of the αis/αi series servo motor is incorporated
  • Page 5[Installation procedure for the battery] (1) Remove the battery cover from the SVM. (2) Install the battery in the SVM as shown in the figure below. (3) Install the battery case. (4) Attach the battery connector to CX5X of the SVM. SVM Inserting direction Cable side Red: +6 V Connector Black: 0 V Ba
  • Page 6[Caution No. 1 for battery replacement] The Pulsecoder for the α series servo motor is not incorporated with a backup capacitor as standard. To keep the absolute position information in the absolute Pulsecoder, you need to keep the control power turned on during battery replacement. Follow the proce
  • Page 7[Caution No. 2 for battery replacement] If an excessive strain is applied to a connector when it is inserted or removed, a poor contact may result. When inserting and removing the battery connector, therefore, be careful not to apply an excessive wrenching force to it; just follow the instructions g
  • Page 8(2)Detaching the connector <1> Hold both the sides of the cable insulator and the cable, and pull them horizontally. <2> Pull out the cable side while raising it slightly. 10 degrees or less <3> Here, the angle of the cable to the horizontal must be 5 degrees or less. 5 degrees or less PERIODIC MAIN