28
MG.60.N1.22 - VLT is a registered Danfoss trademark
VLT
®
5000 / VLT
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6000 HVAC / VLT
®
8000 AQUA
Precedence of the stop commands
is:
1. Coast stop
2. Quick stop
3. DC brake stop
4. Ramp stop
Coast stop
The drive output stops immediately
and the motor coasts to a stop.
• Drive display show UN.READY
(unit ready) when coast stop
is active.
• Drive cannot run in any mode.
• Parameter 503 (502),
Coasting stop, determines
interaction with input 27.
Quick stop
The drive output frequency ramps
down to 0 Hz according to time set
in parameter 207 (212), Ramp Down
Time.
• Drive display shows STOP.
• Drive cannot run in AUTO
mode but can run in HAND
mode.
DC brake stop
The drive brakes the motor to a stop
using DC injection braking.
• Parameters 114 (125) and 115
(126) determine amount and
time of DC current applied for
braking.
• Drive display shows DC STOP.
• Drive cannot run in AUTO
mode but can run in HAND
mode.
• Parameter 504, DC Brake,
determines interaction with
input 27.
Drive Speed Setpoint
With this input variable it is possible to
give the Drive a Start/stop signal and a
reference.
StateState
StateState
State
Ref. valueRef. value
Ref. valueRef. value
Ref. value
CommandCommand
CommandCommand
Command
0 - Stop
1 0 Run, Ref. = 0%
1 0-100% Run, Ref. = 0-100%
0xFF - Auto (invalid)
Default is Auto.
Ramp stop
The drive output frequency ramps down to
0 Hz according to time set in parameter
207, Ramp Down Time.
• Factory setting is 60 sec for fan
applications and 10 sec for most
pump applications.
• Drive display shows STAND BY.
• Drive can run in HAND mode or
AUTO through a digital input
command.
• Parameter 505, Start, determines
interaction with input 18.
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