Danfoss VLT HVAC Drive Instruction Manual page 7

GROUP 3 – Third (right) word: Operation Status
Operation status
The motor is accelerating/decelerating using the active ramp up/down. The reference, a limit
Ramping
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
Ref. high
Reference High.
The sum of all active references is below the reference limit set in parameter 4‐54 Warning
Ref. low
Reference Low.
Run on ref.
The 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
Run request
received via digital input.
Running
The drive is driving the motor.
(FC 100/200 only) The boost function in parameter 4‐06 Boost setpoint is enabled. This
Sleep Boost
function is only possible in
Closed loop operation.
The energy‐saving function is enabled. This function being enabled means that now the
Sleep mode
motor has stopped, but that it restarts automatically when required.
The output frequency is corrected by the value set in par. 3‐12 Catch up/slow Down Value.
1. Slow Down was selected as a function for a digital input (parameter group 5–1* Digital
Slow down
Inputs). The corresponding terminal is active.
2. Slow Down was activated via serial communication.
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.
In auto‐on mode, the drive starts the motor with a start signal from a digital input or serial
Standby
communication.
In parameter 1‐71 Start Delay, a delay starting time was set. A start command is activated,
Start delay
and the motor starts after the start delay time expires.
12 Enable Start Forward and 13 Enable Start Reverse were selected as functions for 2
Start fwd/rev
different digital inputs (parameter group 5–1* Digital Inputs). The motor starts in forward or
reverse depending on which corresponding terminal is activated.
PROFIDrive profile was selected in par. 8‐10 Control Word Profile. The start inhibition is
Start inhibit
active. The FC needs the first part (e.g. 0x047E) of the two‐part start command via serial
communication to allow starting. See also operation status control ready.
The drive has received a stop command from one of the following:
• LCP.
Stop
• Digital input.
• Serial communication.
An alarm occurred and the motor is stopped. Once the cause of the alarm is cleared, reset
the drive using 1 of the following:
Trip
• Pressing Reset.
• Remotely by control terminals.
• Via serial communication.
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 one of the following:
Trip lock
• Pressing Reset.
• Remotely by control terminals.
• Via serial communication.
PROFIDrive profile was selected in par. 8‐10 Control Word Profile. A Control word is sent to
Unit/Drive not
the FC via serial communication with Off 1, Off 2 and Off 3 active. Start inhibit is active. To
ready
enable Start, see operation status Start inhibit.
Description
6