4-72
4-2 Function Mode
4
Functions
Regenerative Braking Function
• This function applies to the Inverter models with a built-in regenerative braking circuit
(3G3RX-A2220/A4220 or lower models).
• With the built-in regenerative braking circuit, this function allows an external braking resistor to
consume the motor's regeneration energy as heat.
This function is useful for a system in which the motor works as a generator when it is rapidly
decelerated.
• To use this function, configure the following settings.
* The regenerative braking function ON level conforms to the voltage setting for the Inverter's internal converter
(DC unit).
Cooling Fan Control
• You can set whether to operate the Inverter's cooling fan constantly or only during Inverter
operation.
Note: If a momentary power interruption occurs or the power is shut off while the cooling fan is in operation, the
cooling fan stops temporarily and restarts automatically after power recovery.
Parameter No.
Function name
Data
Default setting
Unit
b090
Usage rate of
regenerative
braking function
0.0: Does not operate.
0.1 to 100.0:
A regenerative braking usage rate for 100 seconds
can be set, in increments of 0.1%.
If the set usage rate is exceeded, a braking resistor
overload trip (E06) occurs.
0.0
%
b095
Regenerative
braking function
operation selection
00: Disabled (This function is not active.)
01: Enabled during operation (This function is
active.)
Disabled during stop (This function is not active.)
02: Enabled during both operation and stop (This
function is active.)
0.0
⎯
b096
Regenerative
braking function
ON level
200-V class: 330 to 380
*
400-V class: 660 to 760
*
(Inverter DC voltage)
200-V class:
360 V
400-V class:
720 V
V
t1
t2
t3
ON
ON
ON
Regenerative
braking
function activated
100 s
Usage rate (%) =
(t1 + t2 + t3)
100 s
× 100
Parameter No.
Function name
Data
Default setting
Unit
b092
Cooling fan control
00: Always ON
01: ON during RUN
Regardless of the settings, the cooling fan
operates for 5 minutes after power-on, and
for 5 minutes after the Inverter stops.
01
⎯
Summary of Contents for 3G3RX Series
Page 1: ...Cat No I560 E1 03 USER S MANUAL SYSDRIVE RXSERIES High function General purpose Inverter ...
Page 2: ......
Page 17: ...Chapter 1 Overview 1 1 Functions 1 1 1 2 Appearance and Names of Parts 1 4 ...
Page 22: ......
Page 23: ...Chapter 2 Design 2 1 Installation 2 1 2 2 Wiring 2 6 ...
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Page 108: ......
Page 324: ......
Page 337: ...Chapter 6 Inspection and Maintenance 6 1 Inspection and Maintenance 6 1 ...
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Page 437: ...Index ...
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