Chapter 12 Description of Parameter Settings
CT2000 Series
12.1-06-3
During acceleration, the AC drive output current may increase abruptly and exceed the value
specified by Pr.06-03 due to rapid acceleration or excessive load on the motor. When this function
is enabled, the AC drive will stop accelerating and keep the output frequency constant until the
current drops below the maximum value.
When the over-current stall prevention is enabled, drive deceleration time will be larger than the
setting.
When the Over-Current Stall Prevention occurs due to too small motor capacity or in the factory
setting, please decrease Pr.06-03 setting.
When there is any problem by using acceleration time, refer to the following items to solve it.
Related parameters: Pr.01-12, 01-14, 01-16, 01-18 (settings of accel. time 1~4), Pr.01-44
1. dd the suitable acceleration time.
2. Setting Pr.01-44 Optimal Acceleration/Deceleration Setting to 1, 3 or 4 (auto accel.)
Optimal Acceleration/Deceleration Setting, Pr.02-13~02-14 (Multi-function Output 1 RY1, RY2), Pr.
02-16~02-17 Multi-function Output (MO1, 2)
06-03
Over-Current
Detection
Level
Over-Current Stall p revention during
Acceleration,frequency held
actual acceleratio n time when over-current stall
prevention is ena bled
Output current
Setting frequency
Output frequency
Time
Original setting of acceleration time
Over-current Stall Prevention during Operation
Settings Light duty: 0~160% (100%: drive’s rated current)
Factory Setting: 120
Heavy duty: 0~180% (100%: drive’s rated current)
Factory Setting: 150
It is a protection for drive to auto decrease output frequency when the motor is over-load abruptly
during motor constant operation.
If the output current exceeds the setting specified in Pr.06-04 when the drive is operating, the drive
will decrease its output frequency (according to Pr.06-05) to prevent the motor stall. If the output
current is lower than the setting specified in Pr.06-04, the drive will accelerate (according to
Pr.06-05) again to catch up with the set frequency command value.
Summary of Contents for CT2000 Series
Page 5: ...Chapter 1 Introduction CT2000 Series 1 2 Model Name VFD 750 CT 43 F 00 A6 Serial Number...
Page 22: ...Chapter 1 Introduction CT2000 Series 1 19 Digital Keypad KPC CC01 KPC CE01 Unit mm inch...
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Page 71: ...Chapter 7 Optional Accessories CT2000 Series 7 18 Wall Mounting Embedded Mounting...
Page 87: ...Chapter 8 Optional Cards CT2000 Series 8 8 PG Card intallation...
Page 88: ...Chapter 8 Optional Cards CT2000 Series 8 9 Disconneting the extension card...
Page 92: ...Chapter 8 Optional Cards CT2000 Series 8 13 PG2 Wiring Diagram...
Page 95: ...Chapter 8 Optional Cards CT2000 Series 8 16 PG2 Wiring Diagram...
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Page 489: ...Chapter 16 PLC Function CT2000 Series 16 48 LD X1 Load Contact a of X1 OUT Y1 Drive Y1 coil...
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