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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 | 131
Classified as Business
YELLOW LIGHT
Voltage Warning
Bus voltage is nearing its allowable limit. The controller will experience
regeneration limitations.
Under Voltage
Bus voltage is too low to operate normally. Motoring is limited.
Voltage causing torque
limitation
Bus voltage is below the nominal voltage for system operation. Maximum
motoring and regen will be limited accordingly.
Speed Warning
The motor speed is near the allowable limit. Motoring will soon be limited in
order to control the speed.
Unknown speed
There is no position-sensing input occurring. It is likely that the motor is not
spinning.
Inverter/Stator/Rotor/
Temperature warning
The temperature measurement is approaching the allowable limit. The
temperature limits are given on the “About UqmMotor” dialog box. The
controller will soon impose limitations.
Position signals are noisy
Electrical noise was detected within the position-sensing signals. A yellow light
indicates that a noise event has occurred in the last 15 seconds.
No CANbus
communication
The controller is in CANbus control but no CANbus communication has yet
been detected. The controller is disabled.
CANbus limit acting
Limits imposed through the CANbus commands are acting on the motor’s
output.
Stall conditions
The motor is experiencing stall conditions, meaning that it is not spinning and
large amounts of torque are being requested. While in stall condition, the
motor is periodically limited in output to prevent damage to the controller
modules.
Forced voltage control
The motor is in forced voltage control, a condition normally encountered
when the motor is spun without a battery connected to it. Forced voltage
control is entered to keep the voltage from going over the allowable controller
limit, which would damage the hardware. The controller drops out of forced
voltage control automatically when the battery is re-connected.
Leg current separation
occurring
The motor’s phase legs have some current separation (vertical displacement
from one phase to another). No limitation occurs with this message.
Direction mismatch
The desired direction in the CANbus command does not match the present
direction of motor movement. This condition can exist when the motor is
stopped because the directions were mismatched on the last movement of
the motor as it came to a stop.
Содержание ED-DT318B
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