Danfoss VLT 8000 AQUA Instrucciones de operaciones descargar pdf (Pagina 42)

41

MG.60.N2.02 - VLT is a registered Danfoss trademark

VLT

®

5000 / VLT

®

6000 HVAC / VLT

®

8000 AQUA

Data Value:

Preprogrammed (FACTORY SETUP) [0]

Setup 1 (SETUP 1) [1]

Setup 2 (SETUP 2) [2]

Setup 3 (SETUP 3) [3]

Setup 4 (SETUP 4) [4]

★ Active Setup (ACTIVE SETUP) [5]

★ Factory Setting

805

Control Word

Bit 10 Function

Selection:

No function

(NO FUNCTION) [0]

★ Bit 10 = 1: control word active

(BIT 10 = 1 >CTW ACTIVE) [1]

Bit 10 = 0: control word active

(BIT 10 = 0 >CTW ACTIVE) [2]

Bit 10 = 0: bus time out

(BIT 10 = 0 >TIME OUT) [3]

Function:

According to the drive's standard

communications profile, control word and

speed reference will be ignored if bit 10 of the

control word is

0

. Parameter 805 lets the user

change the function of bit 10. This is some

times necessary, as some masters set all bits

to

0

in various fault situations. In these cases,

it makes sense to change the function of bit

10 so that the VLT is commanded to stop

(coast) when all bits are

0

.

Description of Selections:

•

No function

. Bit 10 is ignored, i.e.,

control word and speed reference are

always valid.

•

Bit 10

=

1

>CTW active

. The control

word and speed reference are

ignored if bit 10 = 0.

•

Bit 10

=

0

>CTW active

. The control

word and speed reference are

ignored if bit 10 = 1. If all bits of the

control word are 0, the VLT reaction

will be coasting.

•

Bit 10

=

0

>time out

. The time out

function selected in parameter 804 is

activated when bit 10 is

0

.

Data Value:

Disable (DISABLE) [0]

★ Enable (ENABLE) [1]

This parameter determines LonWorks control

of the drive. When

Enable

is selected, drive

parameters 503 through 508 determine the

interaction between various LonWorks and

digital drive input commands. See the

VLT Instruction Manual

for details.

When this parameter is set to

Store active

setup

, LonWorks downloaded parameters are

written to EEPROM and stored.

Store edit

setup

stores the setup selected in parameter

970.

Store all setups

stores all setups in

parameter 970. When finished (appx. 15 sec.),

it automatically returns to

No action

. Any

parameters values written via the serial bus

with

No action

selected are lost when power

is removed from the drive. The function is only

activated with the VLT in stop mode.

Data Value:

Disable (DISABLE) [0]

★ Enable (ENABLE) [1]

This parameter determines if LonWorks can

be used to access and edit drive parameters.

927

Parameter edit

928

Process control

970

Edit setup select

971

Store data value

Data Value:

★ No action (NO ACTION) [0]

Store all setups

(STORE ALL SETUPS [1]

Store edit setup

(STORE EDIT SETUP) [2]

Store active setup

(STORE ACTIVE SETUP) [3]

With

Bit 10

=

0

>CTW active

selected

,

nviStartStop and

nviResetFault commands will not

function.

CAUTION

!

This parameter selects the setup being edited,

through either the drive control panel or

LonWorks. The drive may operate in one

setup while editing another.

Active setup

selects the parameter being edited as the

setup controling drive operation.

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