Danfoss VLT FC 100 Service Manual page 29

Operator Interface and Adju...
Feedback low The sum of all active feedbacks is below the
feedback limit set in 4-56 Warning Feedback
Low.
Freeze output The remote reference is active, which holds
the present speed.
•
Freeze output was selected as a function
for a digital input (parameter group 5-1*
Digital Inputs). The corresponding terminal
is active. Speed control is only possible via
the terminal functions Speed Up and Slow.
•
Hold ramp is activated via serial communi-
cation.
Freeze output A freeze output command has been given,
request but the motor will remain stopped until a run
permissive signal is received.
Freeze ref. Freeze Reference was chosen as a function for
a digital input (parameter group 5-1* Digital
Inputs). The corresponding terminal is active.
The adjustable frequency drive saves the
actual reference. Changing the reference is
now only possible via terminal functions
Speed Up and Slow.
Jog request A jog command has been given, but the
motor will be stopped until a run permissive
signal is received via a digital input.
Jogging The motor is running as programmed in
3-19 Jog Speed [RPM].
•
Jog was selected as function for a digital
input (parameter group 5-1* Digital Inputs).
The corresponding terminal (e.g., Terminal
29) is active.
•
The Jog function is activated via the serial
communication.
•
The Jog function was selected as a
reaction for a monitoring function (e.g., No
signal). The monitoring function is active.
Motor check In 1-80 Function at Stop, Motor Check was
selected. A stop command is active. To ensure
that a motor is connected to the adjustable
frequency drive, a permanent test current is
applied to the motor.
Over Voltage Overvoltage control was activated in 2-17 Over-
Control (OVC) voltage Control, [2] Enabled. The connected
motor is supplying the adjustable frequency
drive with generative energy. Overvoltage
control adjusts the V/Hz ratio to run the
motor in controlled mode and to prevent the
adjustable frequency drive from tripping.
MG94A222
Service Manual
PowerUnit Off
Protection md
QStop
Ramping
Ref. high
Ref. low
Run on ref.
Run request
Running
Sleep Mode
Speed high
Speed low
Standby
Danfoss A/S © Rev. 2014-02-10 All rights reserved.
(For adjustable frequency drives with an
external 24 V power supply installed only.)
Line power supply to the adjustable frequency
drive is removed, but the control card is
supplied by the external 24 V.
Protection mode is active. The unit has
detected a critical status (an overcurrent or
overvoltage).
•
To avoid tripping, switching frequency is
reduced to 4 kHz.
•
If possible, Protection mode ends after
approximately 10 s.
•
Protection mode can be restricted in
14-26 Trip Delay at Inverter Fault.
The motor is decelerating using 3-81 Quick
Stop Ramp Time.
•
Quick stop inverse was chosen as a function
for a digital input (parameter group 5-1*
Digital Inputs). The corresponding terminal
is not active.
•
The quick stop function was activated via
serial communication.
The motor is accelerating/decelerating using
the active Ramp Up/Down. The reference, a
limit value or a standstill is not yet reached.
The sum of all active references is above the
reference limit set in 4-55 Warning Reference
High.
The sum of all active references is below the
reference limit set in 4-54 Warning Reference
Low.
The adjustable frequency drive is running in
the reference range. The feedback value
matches the setpoint value.
A start command has been given, but the
motor is stopped until a run permissive signal
is received via digital input.
The motor is driven by the adjustable
frequency drive.
The energy saving function is enabled. This
means that at present the motor has stopped,
but that it will restart automatically when
required.
Motor speed is above the value set in
4-53 Warning Speed High.
Motor speed is below the value set in
4-52 Warning Speed Low.
In Auto On mode, the adjustable frequency
drive will start the motor with a start signal
from a digital input or serial communication.
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