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YASKAWA Sigma II Series User Manual page 159

Servo system

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Sigma II User's Manual
play before returning the counter to 0.
Parameter
Pn205
Multi-turn Limit Setting
When Pn205 is set to the default (65535), multi-turn data varies in the range of
−32768 to +32767.
With any other Pn205 value entered, data varies from 0 to the set value.
Note: To activate reassignment of this value, the user must first enter the change to the parameter, and then
cycle (turn OFF and then turn ON) the power.
Since the encoder's multi-turn limit value is set as default to 65535, the following
alarm occurs if the servo amplifier's power supply is cycled (turned OFF and ON)
after changing parameter Pn205:
Alarm Display
A.CC
Note: O: ON ("L") signal
X: OFF ("H") signal
In order to set a multi-turn limit value to the encoder, perform the multi-term limit
setting operation (Fn-013).
This operation can be executed using the hand-held digital operator or the servo
amplifier panel operator.
Note: The multi-turn limit setting is enabled only during the multi-turn limit value mismatch alarm. Cycle
the power after performing this operation.
• Connect the ground terminal to a class–3 ground (100Ω Ω or less).
Improper grounding may result in electric shock or fire.
5.7.3
Handling Batteries
In order for the absolute encoder to retain position data when the power is turned
OFF, the data must be backed up by a battery.
n
Installing the Battery at the Host Device
Lithium battery, by Toshiba: ER6VC3, 3.6V, 2000mAh
Signal
Setting Range: 0 to 65535
Default Setting: 65535
Alarm Code Output
ALO1
ALO2
O
X
WARNING
!
Chapter 5: Parameter Settings and Functions
Setting
ALO3
Encoder multi-turn limit value does not
O
match with that of the servo amplifier.
5-92
Description
Speed/Torque Control,
Position Control
Description

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