3 Wiring and Connection
3-30
3.7.2 Setting Regenerative resistors Capacity
When using an external regenerative resistors, set the Pn600 so that the regenerative resistors capacity is equivalent to the
resistor capacity.
WARNING
• If parameter Pn600 is set to 0 while an external regenerative resistors is connected, the regenerative over-
load alarm (A.320) may not be detected. If the regenerative overload alarm (A.320) is not detected
correctly, the external regenerative resistors may be damaged and an injury or fire may result.
Pn600
Regenerative resistors Capacity
Speed
Position
Torque
Classification
Setting Range
Unit
Factory Setting
When Enabled
0 to DRIVER
capacity
10 W
0
Immediately
Setup
Be sure to set the regenerative resistors capacity (Pn600) to a value that is in accordance with the allowable capacity of
the actual external regenerative resistors being used.
The setting will vary with the cooling method of external regenerative resistors:
•
For natural convection cooling: Set the value to a maximum 20% of the actually installed regenerative
option capacity (W).
•
For forced convection cooling: Set the value to a maximum 50% of the actually installed regenerative
option capacity (W).
Example: Set 20 W (100 W
×
20%) for the 100-W external regenerative resistors with natural convection cooling method:
Pn600 = 2 (unit: 10 W)
Note 1. If Pn600 is not set to the optimum value, alarm A.320 will occur.
2. When set to the factory setting (Pn600 = 0), the DRIVER’s built-in option has been used.
• When the external regenerative resistors for power are used at the rated load ratio,
the resistor temperature increases to between 200
°
C and 300
°
C. The resistors must
be used at or below the rated values. Check with the manufacturer for the resistor
’s
load characteristics.
• For safety, use the external regenerative resistors with thermoswitches.
Summary of Contents for LECYU Series
Page 30: ...1 Outline 1 9 1 4 3 Three phase 200 V LECYU2 V9 Models ...
Page 65: ...3 Wiring and Connection 3 11 3 Wiring Example with DC Power Supply Input DRIVER ...
Page 92: ...3 Wiring and Connection 3 38 External Dimensions Units mm 1 FN Type by Schaffner EMC Inc ...
Page 93: ...3 Wiring and Connection 3 39 2 FN Type ...
Page 143: ...4 Operation 4 44 ...
