Delta 28-299A Instruções de Operação descarregar pdf (Página 56)

7.7 Outputs

4-1 Relay A Function

Option: Function:

Selects the function of Relay A (normally open).

Off Relay A is not used

Main Contactor

The relay closes when the MCD 500 receives a

start command, and remains closed as long as

the motor is receiving voltage.

Run The relay closes when the starter changes to

run state.

Trip The relay closes when the starter trips.

Warning The relay closes when the starter issues a

warning.

Low Current

Flag

The relay closes when the low current flag

activates (Par. 4-10 Low Current Flag).

High Current

Flag

The relay closes when the high current flag

activates (Par. 4-11 High Current Flag).

Motor Temp

Flag

The relay closes when the motor temperature

flag activates (Par. 4-12 Motor Temperature

Flag).

7.7.1 Relay A Delays

The MCD 500 can be configured to wait before opening or

closing Relay A.

4-2 Relay A On Delay

Range: Function:

0 secs* [0:00 - 5:00 (min:secs)] Sets the delay for closing Relay

4-3 Relay A Off Delay

Range: Function:

0 secs* [0:00 - 5:00 (min:secs)] Sets the delay for re-opening

Relay A.

7.7.2 Relays B and C

Parameters 4-4 to 4-9 configure the operation of Relays B

and C in the same way as parameters 4-1 to 4-3 configure

Relay A.

4-4 Relay B Function

Option: Function:

Selects the function of Relay B (changeover).

Off Relay B is not used

Main Contactor The relay closes when the MCD 500 receives a

start command, and remains closed as long as

the motor is receiving voltage.

Run

The relay closes when the starter changes to run

state.

Trip The relay closes when the starter trips.

Warning The relay closes when the starter issues a

warning.

4-4 Relay B Function

Option: Function:

Low Current

Flag

The relay closes when the low current flag

activates (Par. 4-10 Low Current Flag).

High Current

Flag

The relay closes when the high current flag

activates (Par. 4-11 High Current Flag).

Motor Temp

Flag

The relay closes when the motor temperature

flag activates (Par. 4-12 Motor Temperature Flag).

4-5 Relay B On Delay

Range: Function:

0 secs* [0:00 - 5:00 (min:secs)] Sets the delay for closing Relay

4-6 Relay B Off Delay

Range: Function:

0 secs* [0:00 - 5:00 (min:secs)] Sets the delay for re-opening

Relay B.

4-7 Relay C Function

Option: Function:

Selects the function of Relay C (normally open).

Off Relay C is not used

Main Contactor The relay closes when the MCD 500 receives a

start command, and remains closed as long as

the motor is receiving voltage.

Run The relay closes when the starter changes to

run state.

Trip

The relay closes when the starter trips.

Warning The relay closes when the starter issues a

warning.

Low Current

Flag

The relay closes when the low current flag

activates (Par. 4-10 Low Current Flag).

High Current

Flag

The relay closes when the high current flag

activates (Par. 4-11 High Current Flag).

Motor Temp

Flag

The relay closes when the motor temperature

flag activates (Par. 4-12 Motor Temperature

Flag).

4-8 Relay C On Delay

Range: Function:

0 secs* [0:00 - 5:00 (min:secs)] Sets the delay for closing Relay

4-9 Relay C Off Delay

Range: Function:

0 secs* [0:00 - 5:00 (min:secs)] Sets the delay for re-opening

Relay C.

7.7.3 Low Current Flag and High Current

Flag

The MCD 500 has low and high current flags to give early

warning of abnormal operation. The current flags can be

configured to indicate an abnormal current level during

operation, between the normal operating level and the

Programming MCD 500 Operating Instruction

MG.17.K3.02 - VLT

is a registered Danfoss trademark 55

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