Chapter 12 Description of Parameter SettingsCP2000
12.1-06-5
Over-current Stall Prevention during Acceleration
Default:
120/120/120/120
Settings 230V/460V series
Light load: 0–130% (100%: drive’s rated current)
Normal load: 0–160% (100%: drive’s rated current)
575V/690V series
Light load: 0–125% (100%: drive’s rated current)
Normal load: 0–150% (100%: drive’s rated current)
This parameter only works in VF and SVC control modes.
If the motor load is too large or the drive’s acceleration time is too short, the output current of the
drive may to too high during acceleration, and it may cause motor damage or trigger protection
functions (oL or oc). Use this parameter to prevent these situations.
During acceleration, the output current of the drive may increase abruptly and exceed the value
of Pr.06-03. In this case, the drive stops accelerating and keeps the output frequency constant,
and then continues to accelerate until the output current decreases.
When you enable the over-current stall prevention, the drive’s acceleration time is larger than
the setting.
When the over-current stall prevention occurs because the motor capacity is too small or
operates in the default, decrease the Pr.06-03 setting value.
When you encounter any problem with the acceleration time, refer to the following guides for
troubleshooting:
1. Increase the acceleration time to a suitable value.
2. Setting Pr.01-44 Auto Acceleration / Deceleration Setting to 1, 3 or 4 (auto-acceleration).
Related parameters: Pr.01-12, Pr.01-14, Pr.01-16, Pr.01-18 Acceleration Time 1–4, Pr.01-44
Auto Acceleration / Deceleration Setting, Pr.02-13–02-15 Multi-function Output Relay1–3.
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