Danfoss VLT 5000 Series Operating Instructions

VLT
®
5000 Series
Automatic reset x 8 (AUTOMATIC X 8)
[8]
Automatic reset x 9 (AUTOMATIC X 9)
[9]
Automatic reset x 10 (AUTOMATIC X 10)
[10]
Function:
This parameter makes it possible to select the
reset function desired after tripping.
After reset, the frequency converter can be restarted.
Description of choice:
If Manual reset [0] is selected, reset must be effected
via the [RESET] key or via the digital inputs.
If the frequency converter is to carry out an
automatic reset (1-10 times) after tripping,
select data value [1]-[10].
NB!:
The internal AUTOMATIC RESET counter is
reset 10 minutes after the first AUTOMATIC
RESET has occurred.
Warning: The motor may start
without warning.
406 Automatic restart time
(AUT RESTART TIME)
Value:
0-10sec.
✭ 5 sec.
Function:
This parameter allows setting of the time from tripping
until the automatic reset function begins.
It is assumed that automatic reset has been
selected in parameter 405.
Description of choice:
Set the desired time.
407 Mains failure
(MAINS FAILURE)
Value:
✭No function (NO FUNCTION)
[0]
Controlled ramp-down
(CONTROL RAMP DOWN)
[1]
Controlled ramp-down and trip
(CTRL. RAMP DOWN-TRIP)
[2]
Coasting (COASTING)
[3]
Kinetic back-up (KINETIC BACKUP)
[4]
Controlled alarm suppression
(CTRL ALARM SUPP)
[5]
Function:
Using the mains failure function, it is possible to
ramp down the load to 0 Hz if the mains supply
to the frequency converter fails.
In parameter 450 Mains voltage during mains
fault, the voltage limit must be set at which the
Mains fault function is to be active.
This function can also be activated by selecting
Mains failure inverted on a digital input.
When Kinetic backup [4] is selected, the ramp function
in parameter 206-212 is deactivated.
Controlled ramp down and kinetic back up have
limited perfomance above 70% load.
Description of choice:
Select No function [0] if this function is not required. If
Controlled ramp-down [1] is selected, the motor will
ramp via the quick-stop ramp set in parameter 212. If
the supply voltage is re-established during ramp-down,
the frequency converter will start up again. If Controlled
ramp-down and trip [2] is selected, the motor will ramp
via the quick-stop ramp set in parameter 212.
At 0 Hz the frequency converter will trip (ALARM 36,
mains failure). If the supply voltage is re-established
during ramp-down, the frequency converter will
continue the quick-stop ramp and trip. If Coasting [3]
is selected, the frequency converter will turn off the
inverters and the motor will start coasting.
Parameter 445 Flying motor must be active,
so that if the supply voltage is re-established,
the frequency converter will be able to catch
the motor and start up again.
If Kinetic back-up [4] is selected, the frequency
converter will try to utilise the energy from the
load to maintain a constant intermediate circuit
voltage. If the supply voltage is re-establis
hed, the
frequency converter will start up again.
If Controlled alarm suppression [5] is selected, the
frequency converter will trip if there is a ma
ins failure
and the unit is not stopped by OFF1, OFF2 or OFF3
via the Profibus. Only active with Fieldbus profile
(par. 512) selected and Profibus inst
alled.
408 Quick discharge
(QUICK DISCHARGE)
Value:
✭Not possible (DISABLE)
[0]
Possible (ENABLE)
[1]
Function:
The option is given of quickly discharging
the intermediate circuit capacitors by means
of an external resistor.
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.51.A9.02 - VLT is a registered Danfoss trademark
140

Danfoss VLT 5000 Series Specifications

General

Brand	Danfoss
Model	VLT 5000 Series
Category	DC Drives
Language	English