
15P0082B8
USER MANUAL
SINUS/ISD
7 - 2/4
7.1.3
USING THE OPERATOR STATION TO MANAGE TRIPS
7.1.3.1
Trip Messages
If the Inverter trips, then the display immediately shows a message indicating the reason for the trip. The
possible trip messages are given in the table below.
Trip Message and Meaning
Trip Message and Meaning
Possible Reason for Trip
Possible Reason for Trip
LINK UNDERVOLTS
The Inverter internal dc link voltage is
too low
The supply voltage is too low.
The supply has been lost.
A supply phase is missing.
LINK OVERVOLT
The Inverter internal dc link voltage is
too high
The supply voltage is too high.
Trying to decelerate a large inertia load too quickly.
The brake resistor is open circuit.
OVERCURRENT
The motor current being drawn from the
Inverter is too high
Trying to accelerate a large inertia load too quickly.
Trying to decelerate a large inertia load too quickly.
Application of shock load to motor.
Short circuit between motor phases.
Short circuit between motor phase and earth.
Motor output cables too long or too many parallel
motors connected to the Inverter.
Fixed or auto boost levels are set too high.
HEATSINK TEMP
The Inverter heatsink temperature is
too high
The ambient air temperature is too high.
Poor ventilation or spacing between Inverters.
EXTERNAL TRIP
User trip caused via control terminals
+24V not present on external trip (e.g. terminal 10,
Macro 1).
INPUT 1 BREAK
A signal break has been detected on
analog input 1 (terminal 2)
Analog input is incorrectly configured for 4-20mA
operation.
Break in external control wiring
INPUT 2 BREAK
A signal break has been detected on
analog input 2 (terminal 4)
Analog input is incorrectly configured for 4-20mA
operation
Break in external control wiring.
MOTOR STALLED
The motor has stalled (not rotating)
Motor loading too great.
Current limit level is set too low.
Stall trip duration is set too low.
Fixed or auto boost levels are set too high.
I*t TRIP
The motor current drawn from the
Inverter has exceeded the user set I*t
levels
Motor loading is too great.
I*t threshold level is set too low.
I*t upper limit level is set too low.
I*t time duration is set to low.
BRAKE RESISTOR
External dynamic braking resistor has
been overloaded
Trying to decelerate a large inertia load too quickly
or too often.
Summary of Contents for SINUS/ISD 200 S-0.75
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