Danfoss VLT 8000 AQUA Instrukcje Operacyjne Pobierz pdf (Strona 113)

VLT

8000 AQUA

Programming

206 Ramp-up time

(RAMP UP TIME)

Value:

1 - 3600 sec.

✭ Depends on the unit

Function:

The ramp-up time is the acceleration time from 0

Hz to the rated motor frequency f

M,N

(parameter

104 Motor frequency, f

M,N

). It is assumed that the

output current does not reach the current limit (set

in parameter 215 Current limit I

LIM

Description of choice:

Program the desired ramp-up time.

207 Ramp-down time

(RAMP DOWN TIME)

Value:

1 - 3600 sec.

✭ Depends on the unit

Function:

The ramp-down time is the deceleration time

from the rated motor frequency f

M,N

(parameter

104 Motor frequency, f

M,N

)to0Hz,provided

there is no overvoltage in the inverter because of

the motor acting as a generator.

Description of choice:

Program the desired ramp-down time.

208 Automatic ramp-down

(AUTO RAMPING)

Value:

Disable (DISABLE)

[0]

✭Enable (ENABLE)

[1]

Function:

This function ensures that the frequency converter

does not trip during deceleration if the ramp-down

time set is too short. If, during deceleration, the

frequency converter registers that the intermediate

circuit voltage is higher than the max. value (see list

of warnings and alarms), the frequency converter

automatically extends the ramp-down time.

NB!:

If the function is chosen as Enable [1], the ramp

time may be considerably extended in relation to

the time set in parameter 207 Ramp-down time.

Description of choice:

Program this function as Enable [1] if the frequency

converter periodically trips during ramp-down. If a

quick ramp-down time has been programmed that

may lead to a trip under special conditions, the function

can be set to Enable [1] to avoid trips.

209 Jog frequency

(JOG FREQUENCY)

Value:

Par. 201 Output frequency Low limit - par. 202

Output frequency high limit

✭ 10.0 HZ

Function:

The jog frequency f

JOG

is the fixed output frequency

at which the frequency converter is running when

the jog function is activated.

Jog can be activated via the digital inputs.

Description of choice:

Set the desired frequency.

✭ = factory setting. () = display text [] = value for use in communication via serial communication port

MG.83.A2.02 - VLT is a registered Danfoss trademark

111

1 2 ... 108 109 110 111 112 113 114 115 116 117 118 ... 209 210

Komentarze do niniejszej Instrukcji

Brak uwag

Danfoss VLT 8000 AQUA Instrukcje Operacyjne Strona 113

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Zasilacze i falowniki Danfoss VLT 8000 AQUA