37
5.13.2 Confirmation before execution
Before setting (initializing) the absolute value encoder, be sure to confirm the following.
The write inhibit setting for the parameter must not be set to "writeinhibited"
Must be in servo OFF state
5.13.3 Operable tool
The tools that can set (initialize) the absolute value encoder and their allocation to the setting (initialization) of
the absolute value encoder are as follows.
Operating tool
Distribution
Panel operator
Fn008
debugging
software
[Absolute value Encoder Reset]
5.14 Setting of Regenerative Resistance Capacity
Regenerative resistance refers to the resistance that consumes regenerative energy generated under the
conditions of servo motor deceleration, etc.
When connecting external regenerative resistor, Pn600 (regenerative resistor capacity) and Pn603
(regenerative resistor value) shall be set.
△
!
Warning
When connecting external regenerative resistors, be sure to set appropriate values for Pn600 and Pn603.
Otherwise, A.320 (regenerative overload alarm) will not be detected normally, which may lead to damage of
external regenerative resistor, personal injury and fire.
When selecting an external regenerative resistor, be sure to confirm whether the capacity is appropriate.
Otherwise, injuries and fires may result.
Pn600
Regenerative Resistance Capacity
Speed
Position
Torque
Setting range
Setting Unit
Factory setting
Effective time
Category
0 ~ Maximum
applicable motor
capacity for servo
drive
10W
0
Effective
immediately
Setup
Pn603
Regenerative resistor value
Speed
Position
Torque
Setting range
Setting Unit
Factory setting
Effective time
Category
0
～
65535
10mΩ
0
Effective
immediately
Setup
The regenerative resistance capacity shall be set to a value matching the allowable capacity of the connected
external regenerative resistance. The set value varies depending on the cooling state of the external
regenerative resistor.
In the self-cooling mode (natural convection cooling), it is set to a value less than 20% of the regenerative
resistance capacity (W).
In forced air cooling mode, it is set to a value less than 50% of the regenerative resistance capacity (W).
When the capacity of the self-cooling external regenerative resistor is 100 W, 100 W×20% =20W, so Pn600
(regenerative resistor capacity) should be set to "2" (setting unit: 10 W).
(Note) 1. If the set value is inappropriate, A.320 will be displayed.
2. Factory setting "0" is the set value when servo drive is used to drive the built-in regenerative resistor or the regenerative
resistor unit produced by our company.
Important
When the external regenerative resistor is used at the normal rated load rate, the temperature of the resistor
will reach 200
℃
~ 300
℃
, so please reduce the rated value before using. For the load characteristics of
resistors, please consult the manufacturer.
To ensure safety, it is recommended to use an external regenerative resistor with a temperature control
switch.
Case
