BENSHAW Rsi S Series, Instruction Manual, Page: 347 / 398

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Troubleshooting
Keypad Display LCD Display Type Description
keypad or memory (EEPRom) fault.
ADC Off Set: An error in the current sensing circuit (U/V/W
terminal, current sensor, etc.).
NTC Open Latch Displayed when an error is detected in the temperature
sensor of the Insulated Gate Bipolar Transistor (IGBT).
Fan Trip Latch Displayed when an error is detected in the cooling fan. Set
Pr.79 to 0 to activate fan trip (for models below 22kW
capacity).
Pre-PID Fail Latch Displayed when pre-PID is operating with functions set at
AP.34–AP.36. A fault occurs when a controlled variable
(PID feedback) is measured below the set value and the
low feedback continues, as it is treated as a load fault.
Ext-Brake Latch Operates when the external brake signal is provided by
the multi-function terminal. Occurs when the inverter
output starting current remains below the set value at
Ad.41. Set either OU.31 or OU.32 to 35 (BR Control).
Safety A(B)
Err Latch Displayed when at least one of the two safety input
signals is off.
Protection Functions for Communication Options
Keypad Display LCD Display Type Description
Lost
Command Level Displayed when a frequency or operation command
error is detected during inverter operation by controllers
other than the keypad (e.g., using a terminal block and a
communication mode). Activate by setting Pr.12 to any
value other than 0.
IO Board Trip Latch Displayed when the I/O board or external
communication card is not connected to the inverter or
there is a bad connection.
Displayed when the error code continues for
more than 5 sec.
(‘Errc’ -> ’-rrc’ -> E-rc’ -> ’Er-c’ -> ‘Err-‘ -> ’- -rc’ -> ‘Er- -‘ -> ’
- - - -‘ -> ’Errc’ -> …)
ParaWrite Trip Latch Displayed when communication fails during parameter
writing. Occurs when using an LCD keypad due to a
control cable fault or a bad connection.
Option Trip-1 Latch Displayed when a communication error is detected
between the inverter and the communication board.
Occurs when the communication option card is installed.
NTC
FAN
PID
XBR
SFB
SFA
LCR
HOLD
IOT
ERRC
S100
PAR
OPT