4-43
4-2 Function Mode
4
Func
tions
*1. If an overvoltage/overcurrent trip occurs during deceleration, momentary power interruption error E16
appears, and the motor goes into free-run status. In this case, increase the deceleration time.
*2. When direct current (P-N) is supplied to control power supply terminal Ro-To, the Inverter may detect
undervoltage at power interruption and then trip. If there is any problem with your system, set "00" or "02".
*3. The Inverter may start at 0 Hz if:
The output frequency is equal to or lower than 1/2 of the base frequency
The motor induction voltage quickly attenuates
*4. Even if retry selection b001 is set to "Retry" (01 to 03) and selection of momentary power interruption/
undervoltage trip during stop b004 is set to "Disabled" (00 or 02), the Inverter trips when the actual momentary
power interruption time exceeds the allowable momentary power interruption time. (Example 2)
*5. Even if the trip retry operation is selected, the Inverter trips if the cause of the trip is not remedied after the retry
wait time (b003) elapses. In this case, increase the retry wait time.
*6. Even if the retry operation is selected, the Inverter trips when undervoltage remains for 40 seconds or longer.
*7. If frequency matching start or frequency pull-in restart is selected for retry operation, the Inverter abruptly
restarts at power-on, by alarm reset or retry start.
• Below is the timing chart for frequency matching start (retry selection b001 = 02).
Note that the Inverter switches, regardless of settings, to the initial state when the power supply is turned on in
the case of a complete power discharge.
t0: Momentary power interruption time
t1: Allowable momentary power interruption time (b002)
t2: Retry wait time (b003)
b010
Overvoltage/
overcurrent retry
time
1 to 3
Select the number of retry times in the event of
overvoltage/overcurrent
*5
3
Time
b011
Trip retry wait time
0.3 to 100.
Time before restart
1.0
s
b028
Frequency pull-in
restart level
0.20 × Rated current to 2.00 × Rated current (0.4 to 55 kW)
0.20 × Rated current to 1.80 × Rated current (75 to 132 kW)
Current limit level at frequency pull-in restart
Rated current
A
b029
Frequency pull-in
restart parameter
0.10 to 30.00
Frequency reduction time at frequency pull-in
restart
0.50
s
b030
Starting frequency
at frequency pull-in
restart
00: Frequency at interruption
01: Max. frequency
02: Set frequency
00
⎯
Related functions
C021 to C025, C026
Parameter No.
Function name
Data
Default setting
Unit
Power supply
Inverter
output
Motor rpm
Free running
t0
t2
t1
Power supply
Inverter
output
Motor rpm
Free running
t0
t1
(Example 1)
Duration of momentary power interruption
< Allowable duration of momentary power interruption (b002)
(Example 2)
Duration of momentary power interruption
> Allowable duration of momentary power interruption (b002)
Summary of Contents for 3G3RX Series
Page 1: ...Cat No I560 E1 03 USER S MANUAL SYSDRIVE RXSERIES High function General purpose Inverter ...
Page 2: ......
Page 17: ...Chapter 1 Overview 1 1 Functions 1 1 1 2 Appearance and Names of Parts 1 4 ...
Page 22: ......
Page 23: ...Chapter 2 Design 2 1 Installation 2 1 2 2 Wiring 2 6 ...
Page 48: ......
Page 108: ......
Page 324: ......
Page 337: ...Chapter 6 Inspection and Maintenance 6 1 Inspection and Maintenance 6 1 ...
Page 348: ......
Page 392: ......
Page 436: ......
Page 437: ...Index ...
Page 441: ......