Delta C2000 Series User Manual page 357

Chapter 12 Description of Parameter Settings
When there is any problem as using deceleration time, refer to the following items to solve it.
1. Add the suitable deceleration time.
2. Add brake resistor (refer to Chapter 7-1 for details) to dissipate the electrical energy that
regenerated from the motor as heat type.
Related parameters: Pr01-13, Pr01-15, Pr01-17, Pr01-19 Decel. Time 1~4, Pr02-13~Pr02-14
Multiple-function output (Relay 1 and 2), Pr02-16~Pr02-17 Multiple-function output (MO1,2), and
Pr06-01 over-voltage stall prevention.
Over-current Stall Prevention during Acceleration
Settings
This parameter only works in VF, VFPG, and SVC control mode.
If the motor load is too large or drive acceleration time is too short, the AC drive output current
may increase abruptly during acceleration and it may cause motor damage or trigger protection
functions (OL or OC). This parameter is used to prevent this situation.
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 acceleration 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
Normal duty: 0~150% (100%: drive's rated current)
Heavy duty: 0~180% (100%: drive's rated current)
Light duty: 0~120% (100%: drive's rated current)
Over-Current Stall p revention during
Acceleration,frequ ency held
Original setting of acceleration time
actual acceleratio n time when over-current stall
prevention is ena bled
12.1-06-3
Output current
Setting frequency
Output frequency
Time
Factory Setting: 120
Factory Setting: 150
Factory Setting: 120