Danfoss VLT AutomationDrive FC 302 Instruction Manual page 52

Maintenance, Diagnostics an...
Freeze output
Freeze output
request
Freeze ref.
7 7
Jog request
Jogging
Motor check
Over Voltage
Control (OVC)
PowerUnit Off
50
VLT
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.
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 adjustable frequency drive saves the
actual reference. Changing the reference is
now only possible via terminal functions Speed
Up and Slow.
A jog command was given but the motor
remains stopped until a run permissive signal
is received via a digital input.
The motor is running 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
adjustable frequency drive, 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
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.
(Only adjustable frequency drives with an
external 24 V power supply installed).
Line power supply to the adjustable frequency
drive was removed, and the control card is
supplied by the external 24 V.
Danfoss A/S © 06/2015 All rights reserved.
®
AutomationDrive FC 302
Protection md
QStop
Ramping
Ref. high
Ref. low
Run on ref.
Run request
Running
Sleep Mode
Speed high
Speed low
Standby
Start delay
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 adjustable frequency drive 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 adjustable frequency drive 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 adjustable frequency
drive 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.
MG34U422