Emerson X-web300 Manual de usuario descargar pdf (Pagina 64)

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

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25 THERMOREGULATION AND COMPRESSORS ROTATION

The CO14 parameter determines the compressor on and off sequence.

CO14= 0

Sequential. Depending on the thermoregulation: the 1

compressor is turned on, then the 2

and the 3

etc.; then the 3

off, the 2

and

then 1st. The first is off only if the 2

and 3

are off.

CO14= 1

Rotation by hour. Depending on the time running hours the first compressor called by the thermoregulation is the one with less time

running hours. This algorithm is aborted if the unit is configured with one capacity compressor.

CO14= 2

Rotation by starts-up. Depending on the number of starts-up per hour the first compressor called or turned off is the one with less

starts-up number. This algorithm is aborted if the unit is configured with one capacity compressor.

26 SATURATION - CIRCUIT BALANCING

CIRCUIT SATURATION

CO15 = 0

Depending on the thermoregulation all the compressors of the first are turned on before using the second circuit.

Eg. 2 circuits, 2 step for each circuit (total of 4 resources)

Activation:

The thermoregulation immediately requires all the 4 resources: the controller turns on the compressor with less running hours, then the

second compressor of the same circuit. Then it is turned on the compressor with less running hours of the other circuit and then the

second compressor of the other circuit.

De-activation:

It is selected first the the circuit having less resources on, if the running resources are equals for both circuits, the first compressor

turned off is the one with the greater number of running hours or less number of starts-up, then, in the same circuit, the other resources

are turned off. With the same algorithm the controller will turn off the resources of the other circuit.

CIRCUIT BALANCING

CO15 = 1: the circuit balancing is applicable only if there a2 circuits and 2 resources for circuits (total of 4 resources).

The circuit balancing allow to equalise the power supplied by the two circuits, the difference can be one step maximum.

ES. 2 circuits, 2 step for each circuit (total of 4 resources)

Activation:

The thermoregulation immediately requires all the 4 resources: the controller turns on the compressor with less running hours, then the

compressor with less running hours of the other circuit. Again the first circuit and it is turned on the 2

compressor then the second

compressor of the other circuit.

De-activation:

It is selected first the circuit having more resources on, if the running resources are equals for both circuits, the first compressor turned

off is the one with the greater number of running hours or less number of starts-up, then, in the other circuit, the other compressor with

less running hours. Again the first circuit and it is turned off the 2

compressor then the second compressor of the other circuit.

COMPRESSOR REGULATION

 When it is turned on each compressor runs for the CO01 minimum time. This minimum time is aborted in case of alarm,

STAND-BY / ON OFF by remote, defrost or partialization through NTC transducer.

 When it is turned off each compressor can restart only after the CO02 time delay.

 Both for sequential or rotation regulation with compressors or capacity steps: the successive resource is turned on after the

CO03 delay in seconds.

 Both for sequential or rotation regulation with compressors or capacity steps: the successive resource is turned off after the

CO03 delay in seconds.

 If the power supply fails all the outputs are forced off for the CO005 time delay.

27 COMPRESSORS

27.1 COMPRESSORS START- UP

Parameter CO10 defines the compressor start-up:

CO10=0 (direct)

CO10=1(part winding)

CO10=2 (Star-delta)

To configure the compressor start-up it is necessary check the CF parameters of the relay outputs.

After selecting the compressor start-up mode, if the output resources are not properly configured, eg: more or less relay outputs than

the necessary, the ACF6 alarm is displayed.

27.2 DIRECT START- UP

Configure one relay output for each compressor (K1 relay Fig. 1). One relay output controls the corresponding compressor up to 6

resources.

EXAMPLE

Direct start up configuration for one compressor

Set the Parameter CF54 = 21. Direct start-up RL1 compressor # 1

1 2 ... 59 60 61 62 63 64 65 66 67 68 69 ... 101 102

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Emerson X-web300 Manual de usuario Pagina 64

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