Installation and Operation Guide
ED-DT318B
Drive Train Systems with Traction Control, Inverter/Controller, and Motor with 2 Speed Transmission
BC353060341319en-000101
Revision D
© Danfoss | November 2020 | 129
Classified as Business
RED LIGHT
Untrusted Voltage
The two measurements of voltage made by the controller have diverged
unexpectedly. The controller cannot operate.
Over Voltage
Bus voltage is over the allowable limit. The controller is likely to have gone
into forced voltage control to bring this condition under control. The
controller is in danger of severe damage if this condition persists.
Over Speed
The motor is spinning faster than the allowable limit. Motoring is
significantly limited, and the motor may be generating to try to slow itself
down. If the over speed persists and is fast enough, the motor is in danger of
damage.
Bus Current too large
Bus current is over the allowable limit. The controller imposes limitations on
its output during this condition.
Leg Current too large
The motor’s phase currents are exceeding limits. The controller is limiting
torque.
Leg Currents sum not zero
The measured currents in the three motor phases should equal zero at any
particular moment in time. If they do not, measurements are suspect, and
the controller imposes limitations on its output during this condition. (Note
that on average, the currents in the legs can be large, but sum to 0.)
Bad (A/B/C) Switch(es)
The controller has detected a problem on one or more of the three motor
phases (A, B, or C) and assumes one or more IGBT switches are bad for the
controller module in question. The controller imposes limitations on its
output.
Phase limited
In high speed operation, the controller’s phase adjustment has reached its
allowable limit. The controller imposes limitations on its output during this
condition.
Inverter/Stator/Rotor
Temperature Disconnected
The inverter/controller has detected a disconnected temperature sensor. The
controller imposes limitations on its output during this condition.
Inverter/Stator/Rotor/ Over
Temperature
The temperature measurement is over the allowable limit. The temperature
limits are given on the “About UqmMotor” dialog box. The controller
imposes limitations on its output during this condition.
No position signal
There are no position sensor inputs detected. Ensure that the position signal
cable is connected properly. The controller cannot operate.
Rotor movement
The controller has detected a condition that often indicates that the rotor or
the position-sensing equipment has moved. The controller imposes
limitations on its output.
Position signal is bad
The position signal is bad. The controller cannot operate and must be reset.
Ensure that the position cable is properly connected.
Summary of Contents for ED-DT318B
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