Danfoss 102 Instrukcje Operacyjne Pobierz pdf (Strona 35)

DC Stop

The motor is held with a DC current (2-01 DC

Brake Current) for a specified time (2-02 DC

Braking Time).

•

DC Brake is activated in 2-03 DC Brake Cut

In Speed [RPM] and a stop command is

active.

•

DC Brake (inverse) is selected as a function

for a digital input (parameter group 5-1*

Digital Inputs). The corresponding terminal

is not active.

•

The DC Brake is activated via serial

communication.

Feedback high The sum of all active feedbacks is above the

feedback limit set in 4-57 Warning Feedback

High.

Feedback low The sum of all active feedbacks is below the

feedback limit set in 4-56 Warning Feedback

Low.

Freeze output The remote reference is active, which holds

the present speed.

•

Freeze output was selected as a function

for a digital input (parameter group 5-1*

Digital Inputs). The corresponding terminal

is active. Speed control is only possible via

the terminal functions Speed Up and

Speed Down.

•

Hold ramp is activated via serial communi-

cation.

Freeze output

request

A freeze output command has been given,

but the motor will remain stopped until a run

permissive signal is received.

Freeze ref.

Freeze Reference was chosen as a function for

a digital input (parameter group 5-1* Digital

Inputs). The corresponding terminal is active.

The frequency converter saves the actual

reference. Changing the reference is now only

possible via terminal functions Speed Up and

Speed Down.

Jog request A jog command has been given, but the

motor remains stopped until a run permissive

signal is received via a digital input.

Jogging The motor is running as programmed in

3-19 Jog Speed [RPM].

•

Jog was selected as function for a digital

input (parameter group 5-1* Digital Inputs).

The corresponding terminal (e.g. Terminal

29) is active.

•

The Jog function is activated via the serial

communication.

•

The Jog function was selected as a

reaction for a monitoring function (e.g. No

signal). The monitoring function is active.

Motor check

In 1-80 Function at Stop, Motor Check was

selected. A stop command is active. To ensure

that a motor is connected to the frequency

converter, a permanent test current is applied

to the motor.

OVC control

Overvoltage control was activated in 2-17 Over-

voltage Control, [2] Enabled. The connected

motor is supplying the frequency converter

with generative energy. The overvoltage

control adjusts the V/Hz ratio to run the

motor in controlled mode and to prevent the

frequency converter from tripping.

PowerUnit Off (Only frequency converters with an external

24 V power supply installed).

Mains supply to the frequency converter is

removed, but the control card is supplied by

the external 24 V.

Protection md Protection mode is active. The unit has

detected a critical status (an overcurrent or

overvoltage).

•

To avoid tripping, switching frequency is

reduced to 4 kHz.

•

If possible, protection mode ends after

approximately 10 s

•

Protection mode can be restricted in

14-26 Trip Delay at Inverter Fault

QStop

The motor is decelerating using 3-81 Quick

Stop Ramp Time.

•

Quick stop inverse was chosen as a function

for a digital input (parameter group 5-1*

Digital Inputs). The corresponding terminal

is not active.

•

The quick stop function was activated via

serial communication.

Ramping The motor is accelerating/decelerating using

the active Ramp Up/Down. The reference, a

limit value, or a standstill is not yet reached.

Ref. high The sum of all active references is above the

reference limit set in 4-55 Warning Reference

High.

Ref. low The sum of all active references is below the

reference limit set in 4-54 Warning Reference

Low.

Run on ref. The frequency converter is running in the

reference range. The feedback value matches

the setpoint value.

Run request A start command has been given, but the

motor is stopped until a run permissive signal

is received via digital input.

Running The motor is driven by the frequency

converter.

Diagnostics and Troubleshoo...

VLT

HVAC Drive Operating Instructions

MG11AJ02 - Rev. 2013-07-31 33

7 7

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 73 74

Komentarze do niniejszej Instrukcji

Brak uwag

Danfoss 102 Instrukcje Operacyjne Strona 35

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Zasilacze i falowniki Danfoss 102