Setting Regenerative Resistor Capacity - YASKAWA E-V Series User Manual

3 Wiring and Connection

3.6.2 Setting Regenerative Resistor Capacity

3.6.2 Setting Regenerative Resistor Capacity

When an external regenerative resistor is connected, make sure to set the regenerative resistor capacity using
the parameter Pn600.
• If 0 is set to the parameter Pn600 while an external regenerative resistor is connected, the generative
overload alarm (A.320) may not be detected. If the generative overload alarm (A.320) is not detected cor-
rectly, the external regenerative resistor may be damaged and an injury or fire may result.
Pn600
Be sure to set this parameter when installing an external regenerative resistor to the SERVOPACK.
When set to the factory setting of
Set the regenerative resistor capacity within tolerance value. When the set value is improper, alarm A.320 is
detected.
The set value differs depending on the cooling method of external regenerative resistor:
• For natural air cooling method: Set the value maximum 20% of the actually installed regenerative resistor
• For forced air cooling method: Set the value maximum 50 % of the actually installed regenerative resistor
Example: Set 20 W (100 W × 20% ) for the 100 W external regenerative resistor with natural cooling method:
3-42
Setting Range
0 to SERVOPACK
capacity
0,
" "
capacity (W).
capacity (W).
Pn600 = 2 (units: 10 W)
1. 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.
2. For safety, use the external resistors with thermoswitches.
WARNING
Regenerative Resistor Capacity
Unit
10 W
the SERVOPACK's built-in resistor has been used.
Factory Setting When Enabled
0 Immediately