BENSHAW RSi H2 Series - Page 354

Troubleshooting
342
890053-00-02
LCD Display
Type
Description
specified value during inverter operation. Requires reset.
Ground Trip
Latch
Displayed when a ground fault occurs on the output side of
the inverter and causes the current to exceed the specified
value. The specified value varies depending on inverter
capacity.
E-Thermal
Latch
Displayed based on inverse time-limit thermal characteristics
to prevent motor overheating. Operates when PRT-40 is set
to a value other than ‘0’.
Out Phase Open
Latch
Displayed when the 3-phase inverter output has one or more
phases in an open circuit condition. Operates when bit 0 of
PRT-05 is set to ‘1’.
In Phase Open
Latch
Displayed when the 3-phase inverter input has one or more
phases in an open circuit condition. Operates only when bit
1 of PRT-05 is set to ‘1’.
Inverter OLT
Latch
Displayed when the inverter has been protected from
overload and resultant overheating based on inverse time-
limit thermal characteristics. Allowable overload rates for the
inverter are 120% for 1 min (ND rating) and 140% for 5 sec.
No Motor Trip
Latch
Displayed when the motor is not connected during inverter
operation. Operates when PRT-31 is set to ‘1’, Free-Run.
Over Load
Latch
Displayed when PRT-20 is set to a value other than ‘0’ and
the conditions set with PRT-21 and PRT-22 are detecting a
motor overload.
Under Load
Latch
Displayed when PRT- 27 is set to a value other than ‘0’ and
the conditions set with parameters PRT-23 ~ PRT 28 are
detecting an under load condition.
Ext-Brake
Latch
Displayed when output current is less than the brake release
current (ADV-41) for longer than the brake release delay time
(ADV-42).
Protection Functions Using Abnormal Internal Circuit Conditions and External Signals
LCD Display
Type
Description
Over Heat
Latch
Displayed when the temperature of the inverter heat sink
exceeds the specified value.
Over Current2
Latch
Displayed when the DC circuit in the inverter detects a
specified level of excessive, short circuit current.
External Trip
Latch
Displayed when an external fault signal is activated at the
multi-function terminal. Set one of the multi-function input
terminals at IN-65~71 to ‘4 (External Trip)’ to enable external
trip.
BX
Level
Inverter Output Disable: Displayed when the inverter output is
blocked by a signal activated at the multi-function terminal.
Set one of the multi- function input terminals at IN-65~IN-71
to ‘5 (BX)’ to enable output block function.