BENSHAW RSi GM2 Series - Auto Restart Settings

Learning Advanced Features
890054-00-00
GM2 Series VFD
131
Code and
Features
Description
Cn.72 SS Sup-
Current
During Flying Start-1 (Cn.70 set to 0), the amount of current is controlled. The
percentage is based on the motor’s rated current. If Cn.70 (SS mode) is set to 1
(Flying Start-2), this code is not visible.
Cn.73, Cn.74
SS P/I-Gain,
Cn.75 SS Block
Time
The P/I gain of the speed search controller can be adjusted. If Cn.70 (SS Mode) is
set to 1 (Flying Start-2), different factory defaults are used based on motor capacity
defined in dr.14 (Motor Capacity). Cn.75 (SS Block Time) prevents overvoltage faults
due to counter electromotive force (emf).
Note
• If operated within the rated output, the GM2 series inverter is designed to withstand
instantaneous power interruptions within 15 ms and maintain normal operation. Based
on the rated heavy load current, safe operation during an instantaneous power
interruption within 15ms is guaranteed for 240 V and 480 V inverters (whose rated
input voltages are 200–240 VAC and 380–480 VAC respectively).
• The DC voltage inside the inverter may vary depending on the output load. If the
power interruption time is longer than 15 ms, a low voltage trip may occur.
When operating in sensorless mode for proper operation during free-run, the speed
search function (for general acceleration) must be set for smooth operation. If the speed
search function is not set, an overcurrent trip or overload trip may occur.
Auto Restart Settings
For continued operation, the inverter can be automatically reset and restarted after a fault. Enable
the auto reset/restart function with parameter Pr.08. The number of reset/restart attempts and the
time delay between attempts are set with parameters Pr.09 and Pr.10. Certain faults cannot be auto
reset. These include low voltage, emergency stop (Bx), inverter overheating, and hardware
diagnostic faults.
Group
Code
Name
Setting
Setting
Range
Unit
Pr
08
Selection of startup on trip reset
0
No
0–1
-
09
Number of automatic restarts
0
0–10
-
10
Auto restart delay time
1.0
0.0–60.0
sec
Cn
71
Speed search operation selection
-
0000*–1111
bit
72
Speed search reference current
150
80–200
%
73
Speed search proportional gain
100
0–9999
74
Speed search integral gain
200
0–9999
75
Output block time before speed
search
1.0
0.0–60.0
sec
*Displayed as on the Keypad.