BENSHAW RSi H2 Series - Phase Loss Protection; Automatic Reset and Restart

Parameter Descriptions
192
890053-00-02
5.8.2 PRT-05 Phase Loss Protection
5.8.2.1 Open Phase Protection
Open-phase monitoring and protection can be set for both the input and output of the inverter. The
protection is used to prevent overcurrent levels at the inverter output due to an open phase. An
open phase at output may cause the motor to stall due to a lack of torque. Input phase open
detection is determined by DC Bus ripple voltage. The level can be set with PRT-06.
Group
Code
Name
LCD Display
Parameter Setting
Setting range
Unit
PRT
05
Input/output open-
phase protection
Phase Loss
Chk
00
Bits 00-11
bit
06
Open-phase input
voltage band
IPO V Band
15 (240V, 480V)
40 (575V)
1–100 V
V
Input and Output Open-phase Protection Setting Details
Code
Description
PRT-05
Phase Loss Chk
Input and output phase loss protection can be set independently.
LCD bit representation in parameter view. When the top segment is black,
bit is set to "ON".
Item
Bit Status (On)
Bit Status (Off)
LCD Display
Setting
Function
Bit 1
Bit 0
✓
Output Open Phase protection
✓
Input Open Phase Protection
PRT-06
IPO V Band
The initial value of the ripple voltage is 15V with a setting range of 0 ~
100V.
5.8.3 PRT-08 Automatic Reset and Restart
For continued operation, the inverter can be automatically reset and restarted after a fault. Enable the auto
reset/restart function with parameter PRT-08. The number of reset/restart attempts and the time delay
between attempts are set with parameters PRT-09 and PRT-10. Certain faults cannot be auto reset. These
include inverter overheating, and hardware diagnostic faults.
Group
Code
Name
LCD Display
Parameter Setting
Setting Range
Unit
DRV
06
Command source
Cmd Source
1
Fx/Rx-1
0–5
-
PRT
08
Reset restart setup
RST
Restart
00
00–11
Bit
09
No. of auto restart
Retry
Number
6
0–10
-
10
Auto restart delay time
Retry Delay
5.0
0.1–600.0
sec