Danfoss VLT AQUA Drive FC 202 Operating Manual page 52

Maintenance, Diagnostics, a...
Freeze output
Freeze output
request
Freeze ref.
7 7
Jog request
Jogging
Motor check
OVC control
PowerUnit Off
50
VLT
The remote reference, which holds the present
speed, is active.
•
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 speed
down.
•
Hold ramp is activated via serial communi-
cation.
A freeze output command was given, but the
motor remains stopped until a run permissive
signal is received.
Freeze reference was selected as a function for
a digital input (parameter group 5-1* Digital
Inputs). The corresponding terminal is active.
The frequency converter saves the actual
reference. Changing the reference is now only
possible via terminal functions speed up and
speed down.
A jog command was given, but the motor
remains stopped until a run permissive signal
is received via a digital input.
The motor runs as programmed in
parameter 3-19 Jog Speed [RPM].
•
Jog was selected as a function for a digital
input (parameter group 5-1* Digital Inputs).
The corresponding terminal (for example
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 (for example No
signal). The monitoring function is active.
In parameter 1-80 Function at Stop, [2] Motor
check was selected. A stop command is active.
To ensure that a motor is connected to the
frequency converter, a permanent test current
is applied to the motor.
Overvoltage control was activated in
parameter 2-17 Over-voltage Control, [2]
Enabled. The connected motor supplies the
frequency converter with generative energy.
The overvoltage control adjusts the V/Hz ratio
to run the motor in controlled mode and to
prevent the frequency converter from tripping.
(Only frequency converters with a 24 V
external supply installed).
Mains supply to the frequency converter was
removed, and the control card is supplied by
the external 24 V.
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AQUA Drive FC 202
Protection md
Qstop
Ramping
Ref. high
Ref. low
Run on ref.
Run request
Running
Sleep Mode
Speed high
Speed low
Standby
Start delay
Start fwd/rev
Protection mode is active. The unit has
detected a critical status (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
parameter 14-26 Trip Delay at Inverter Fault.
The motor is decelerating using
parameter 3-81 Quick Stop Ramp Time.
•
Quick stop inverse was selected 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 parameter 4-55 Warning
Reference High.
The sum of all active references is below the
reference limit set in parameter 4-54 Warning
Reference Low.
The frequency converter is running in the
reference range. The feedback value matches
the setpoint value.
A start command was given, but the motor
remains stopped until a run permissive signal
is received via digital input.
The frequency converter drives the motor.
The energy-saving function is enabled. The
motor has stopped, but restarts automatically
when required.
Motor speed is above the value set in
parameter 4-53 Warning Speed High.
Motor speed is below the value set in
parameter 4-52 Warning Speed Low.
In auto-on mode, the frequency converter
starts the motor with a start signal from a
digital input or serial communication.
In parameter 1-71 Start Delay, a delay starting
time was set. A start command is activated
and the motor starts after the start delay time
expires.
Start forward and start reverse were selected
as functions for 2 different digital inputs
(parameter group 5-1* Digital Inputs). The
motor starts in forward or reverse direction
depending on which corresponding terminal is
activated.
MG21A402