Danfoss VLT AHF 005 Programming Guide

24-11 Drive Bypass Delay Time
Range: Function:
0 s* [0 -
600 s]
Programmable in 1 s increments. Once the bypass
function is activated in accordance with the setting
in parameter 24-10 Drive Bypass Function, the
bypass delay timer begins to operate. If the
frequency converter has been set for a number of
restart attempts, the timer continues to run while
the frequency converter tries to restart. Should the
motor have restarted within the time period of the
bypass delay timer, the timer is reset.
Should the motor fail to restart at the end of the
bypass delay time, the drive bypass relay is
activated, which has been programmed for bypass
in parameter 5-40 Function Relay. If a relay delay
has also been programmed in parameter 5-41 On
Delay, Relay, [Relay] or parameter 5-42
O Delay,
Relay, [Relay], this time must also elapse before the
relay action is performed.
Where no restart attempts are programmed, the
timer runs for the delay period set in this
parameter and activates the drive bypass relay,
which has been programmed for bypass in
parameter 5-40 Function Relay. If a relay delay has
also been programmed in parameter 5-41 On Delay,
Relay or parameter 5-42
O Delay, Relay, [Relay], this
time must also elapse before the relay action is
performed.
24-90 Missing Motor Function
Option: Function:
Select the action to be taken if the motor current
is below the limit calculated as a function of the
output frequency. The function is used for
detecting for example a missing motor in multi-
motor applications.
[0] * O
[1] Warning
24-91 Missing Motor Coecient 1
Range: Function:
0* [-10 - 10 ] Enter the cubic coecient of the missing motor
detection-function multiplied by 1000.
24-92 Missing Motor Coecient 2
Range: Function:
0* [-100 - 100 ] Enter the quadratic coecient of the missing
motor detection-function multiplied by 1000.
24-93 Missing Motor Coecient 3
Range: Function:
0* [-100 - 100 ] Enter the linear coecient of the missing
motor detection-function.
24-94 Missing Motor Coecient 4
Range: Function:
0* [-500 - 500 ] Enter the constant of the missing motor
detection-function.
24-95 Locked Rotor Function
Option: Function:
Select the action to be taken if the motor current
is above the limit calculated as a function of the
output frequency. The function is used for
detecting for example, a locked rotor in multi-
motor applications.
[0] * O
[1] Warning
24-96 Locked Rotor Coecient 1
Range: Function:
0* [-10 - 10 ] Enter the cubic coecient of the Locked Rotor
detection function multiplied by 1000.
24-97 Locked Rotor Coecient 2
Range: Function:
0* [-100 - 100 ] Enter the quadratic coecient of the locked
rotor detection function multiplied by 1000.
24-98 Locked Rotor Coecient 3
Range: Function:
0* [-100 - 100 ] Enter the linear coecient of the locked rotor
detection function.
24-99 Locked Rotor Coecient 4
Range: Function:
0* [-500 - 500 ] Enter the constant of the locked rotor
detection function.
Parameter Descriptions Programming Guide
MG11CE02 Danfoss A/S © 03/2015 All rights reserved. 189
3 3

Danfoss VLT AHF 005 Specifications

General

Brand	Danfoss
Model	VLT AHF 005
Category	DC Drives
Language	English