Danfoss VLT 5000 FLUX User Manual

VLT
®
5000 FLUX
Reference
Handling
■ Programmingofstopattorquelimit
In applications with an external electro-mechanical
brake, such as hoisting applications, it is possible
to stop the frequency converter via a ‘standard’
stop command, while at the same time activating
the external electro-mechanical brake.
The example below illustrates the programming
of frequency converter connections.
The external brake can be connected to relay 01
or 04, see Control of mechanical b rake. Program
terminal 27 to Coasting stop, inverse [0] or Reset
and coasting stop, inverse [1], as well as terminal
46 to Torque limit and stop [27].
D
escription:
If a stop command is active via terminal 18 and
the frequency converter is not at the torque limit,
the motor will ramp down to 0 rpm.
If the frequency converter is at the torque limit and
a stop command is activated, terminal 46 Output
(programmed to Torque limit and stop [27]) will be
activated. The signal to terminal 27 will change from
’logic 1’ to ’logic 0’ and the motor will start coasting.
- Start/stop via terminal 18.
Parameter 302 = Start [1].
- Quickstop via terminal 27.
Parameter 304 = Coasting stop, inverse [0].
- Terminal 46 Output
Parameter 319 = Torque limit and stop [27].
- Terminal 01 Relay output
Parameter 323 = Mechanical brake control [32].
MG.55.A6.02 - VLT is a registered Danfoss trademark
55

Danfoss VLT 5000 FLUX Specifications

General

Brand	Danfoss
Model	VLT 5000 FLUX
Category	DC Drives
Language	English