Danfoss VLT HVAC Drive FC 102 Operating Manual page 129

Operating Guide | VLT® HVAC Drive FC 102
Operation Description
status
QStop The motor is decelerating using parameter 3-81 Quick Stop Ramp Time.
• [4] Quick stop inverse was selected as a function for a digital input (parameter group 5–1* Digital Inputs). The cor-
responding terminal is not active.
• The quick stop function was activated via serial communication.
Ramping The motor is accelerating/decelerating using the active ramp up/down. The reference, a limit value, or a standstill is
not yet reached.
Ref. high The sum of all active references is above the reference limit set in parameter 4-55 Warning Reference High.
Ref. low The sum of all active references is below the reference limit set in parameter 4-54 Warning Reference Low.
Run on ref. The drive is running in the reference range. The feedback value matches the setpoint value.
Run request A start command has been given, but the motor is stopped until a run permissive signal is received via digital input.
Running The drive is driving the motor.
Sleep mode The energy-saving function is enabled. This function being enabled means that now the motor has stopped, but
that it restarts automatically when required.
Speed high The motor speed is above the value set in parameter 4-53 Warning Speed High.
Speed low The motor speed is below the value set in parameter 4-52 Warning Speed Low.
Standby In auto-on mode, the drive starts the motor with a start signal from a digital input or serial communication.
Start delay 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 [12] Enable Start Forward and [13] Enable Start Reverse were selected as functions for 2 different digital inputs (pa-
fwd/rev rameter group 5–1* Digital Inputs). The motor starts in forward or reverse depending on which corresponding termi-
nal is activated.
Stop The drive has received a stop command from 1 of the following:
• LCP.
• Digital input.
• Serial communication.
Trip An alarm occurred and the motor is stopped. Once the cause of the alarm is cleared, reset the drive using 1 of the
following:
• Pressing [Reset].
• Remotely by control terminals.
• Via serial communication.
Trip lock An alarm occurred and the motor is stopped. Once the cause of the alarm is cleared, cycle power to the drive. Reset
the drive manually by 1 of the following:
• Pressing [Reset].
• Remotely by control terminals.
• Via serial communication.
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Maintenance, Diagnostics, and
Troubleshooting
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