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Precedence of the stop commands
is:
Coast stop
The drive output stops immediately
and the motor coasts to a stop.
Quick stop
The drive output frequency ramps
down to 0 Hz according to time set
in parameter 207 (212), Ramp Down
Time .
DC brake stop
The drive brakes the motor to a stop
using DC injection braking.
28
1. Coast stop
2. Quick stop
3. DC brake stop
4. Ramp stop
• Drive display show UN.READY
(unit ready) when coast stop
is active.
• Drive cannot run in any mode.
• Parameter
503
Coasting stop , determines
interaction with input 27.
• Drive display shows STOP .
• Drive cannot run in AUTO
mode but can run in HAND
mode.
• 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.
VLT
®
5000 / VLT
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
• Drive display shows STAND BY.
• Drive can run in HAND mode or
• Parameter 505, Start , determines
(502),
Drive Speed Setpoint
With this input variable it is possible to
give the Drive a Start/stop signal and a
reference.
State Ref. value Command
0
1
1
0xFF
Default is Auto.
Analog output 42/45
With this input variable it is possible to
control the analog output 42/45 in the
range from 0-100%. To control the analog
output parameter 319/321 Signal Output
42/45 should be programmed to one of
the following selections:
• Bus control 0-20 mA [44]
• Bus control 4-20 mA [45]
• Bus control Pulse [46]
MG.60.N2.02 - VLT is a registered Danfoss trademark
®
6000 HVAC / VLT
®
applications and 10 sec for most
pump applications.
AUTO through a digital input
command.
interaction with input 18.
-
Stop
0
Run, Ref. = 0%
0-100%
Run, Ref. = 0-100%
-
Auto (invalid)
8000 AQUA
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