BENSHAW Rsi S Series, Инструкция по эксплуатации

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Troubleshooting
9 Troubleshooting
This chapter explains how to troubleshoot problems when the inverter protective functions are
activated (faults and warnings). If the inverter does not work normally after following the suggested
troubleshooting steps, please contact the Benshaw customer service center.
Trips and Warnings
When the inverter detects a fault, it stops the operation (trips) or sends out a warning signal. When
a trip or warning occurs, the keypad displays the information briefly. If the LCD keypad is used,
detailed information is shown on the LCD display. Users can read the warning message at Pr.90.
When more than 2 trips occur at roughly the same time, the keypad (basic keypad with 7-segment
display) displays the higher priority fault information, while the LCD keypad shows the information
for the fault that occurred first.
The fault conditions can be categorized as follows:
•
Level: When the fault is corrected, the trip or warning signal disappears (automatically cleared)
and the fault is not saved in the fault history.
•
Latch: When the fault is corrected and a reset is performed (keypad or external), the trip or
warning signal disappears. The fault is saved in the fault history.
•
Fatal: When the fault is corrected, the fault or warning signal disappears only after the inverter
power is cycled. On power off, wait until the charge indicator light goes off the turn the inverter
on again. If the the inverter is still in a fault condition after powering it on again, please contact
the supplier or the customer service center.
Fault Trips
Protection Functions for Output Current and Input Voltage
Keypad Display LCD Display Type Description
Over Load Latch Displayed when the motor overload trip is activated and
the actual load level exceeds the set levels (Pr.21 and
Pr.22). Operates when Pr.20 is set to a value other than 0.
Under Load Latch Displayed when the motor underload trip is activated and
the actual load level is less than the set level. Operates
when Pr.27 is set to a value other than 0.
Over
Current1 Latch Displayed when inverter output current exceeds 200% of
the rated current.
Over Voltage Latch Displayed when internal DC circuit voltage exceeds the
specified value.
Low Voltage Level Displayed when internal DC circuit voltage is less than the
specified value.
Low Voltage2 Latch Displayed when internal DC circuit voltage is less than the
specified value during inverter operation.
OLT
ULT
OCT
ovt
LVT
LV2