Danfoss ADAP-KOOL AK-PC 651 User Manual Download Page 8

User Guide 

|

 Capacity Controller, AK-PC 651

© Danfoss | ADAP-KOOL® | 2015.10  

8 | RS8HA102 | 

Start/stop

Main switch

Main switch

Start and stop regulating here.

The configuration settings will require that regulating is stopped. 

If you try to enter a configuration setting when regulating has started, the controller will  

ask if regulating should be stopped.

When all settings have been made and the main switch is set to “ON”, the controller will  

enable the display of the various measurements. Regulation will start. (If an external main 

switch has been defined, it must also be “ON” before regulating starts.) 

On / Off

Extern Main swich

External main switch

It is possible to connect an external switch which can be used to start and stop regulating.

Both the internal and external main switch must be ON before regulating starts. 

An external main switch can be defined in the menu “Plant type” - “Main switch via DI”.   

Plant type

Select Plant type

Plant settings:

The following must be regulated:

• Compressor group

• Condenser group

• One compressor group  + One condenser group

Fac: None

Refrigerant type

Refrigerant setting

Before refrigeration is started, the refrigerant must be defined. You may choose between  

the following refrigerants:

R12,  R22,  R134a,  R502,  R717,  R13,  R13b1,  R23,  R500,  R503,  R114,  R142b, user defined, 

R32, R227,  R401A,  R507, R402A,  R404A, R407C,  R407A,  R407B,  R410A,  R170,  R290,  R600,  

R600a,  R744,  R1270,  R417A,  R422A, R413A, R422D, R427A, R438A, XP10, R407F.

Warning: Wrong selection of refrigerant may cause damage to the compressor.

Other refrigerants: Here Setting "user defined" is selected and then three factors - fac1, fac2 

and fac3 and temperature glide (if necessary).

Fac: None

Unit of setpoints

Device for configuration of compressor and condenser

Select pressure or saturation temperature.

(Can be set during initial set-up and must 

not

 be subsequently changed.)

Temp. / press

Fac: Saturated

Night signal via DI

Night time operation via DI signal

Define an external switch here, so that the regulation reference can be raised and lowered 

externally. 

1. Set the function to “Yes”

2. Go to I/O configuration and select an available digital input. Set this input to  

“Night condition”

3. Next, define whether the function is to be active when the signal is ON, or when it is OFF.

DI-demand

No / Yes

Fac: No

Main Switch via DI

Main switch via DI

Define an external main switch here, so that regulation can be started and stopped  

externally.

1. Set the function to “Yes”

2. Go to I/O configuration and select an available digital input. Set this input to “Main switch”

3. Next, define whether the function is to be active when the signal is ON, or when it is OFF. 

DI-demand

No / Yes

Fac: No

Mains frequency

Frequency

Set the net frequency

50 Hz / 60 Hz

Fac: 50 Hz

Alarm output

Alarm relay

Define an alarm relay here that will be activated in the event of an alarm.

1. Select the alarm priority that will activate the relay

• No relay

• Critical alarm

• Severe alarm

• All alarms

2. Go to I/O configuration and select an available digital output. Set this output to “Alarm”

3. Next, define whether the relay will be active (pulled) when the alarm is ON, or when it is 

OFF.

DO-demand

Fac: No relay

Alarm buzzer

Alarm sound

Here the sound generator can be defined to emit a sound in the event of an alarm.

Select which alarm priority will activate the sound generator:

• No buzzer

• Critical alarm

• Severe alarm

• All alarms

(In the event of an alarm, the sound generator can be stopped by moving across the  

active alarm screen;  see page 6) 

Fac: No buzzer

Suction 

Control status

Regulation status

Menu

SW: 1.3x

Summary of Contents for ADAP-KOOL AK-PC 651

Page 1: ...Capacity controller AK PC 651 User Guide ADAP KOOL Refrigeration Control System...

Page 2: ...matic safety control day night signal etc Relay outputs max 13 pcs Connection of compressors condenser fans Solid state outputs max 2 pcs Control of capacity valve on a Copeland digital scroll Control...

Page 3: ...one the control ler will cut out or cut in the next compressor in the sequence When further capacity is either cut out or cut in the capacity from the regulating compressor will be modified accordingl...

Page 4: ...of the following functions Fixed reference Variable reference which follows the outdoor temperature When the outdoor temperature drops the reference will drop by a corresponding amount This variable...

Page 5: ...scroll a Copeland stream or Bitzer CRII the capacity will be increased so that the compressor can cool down itself The compressors will be stopped if the temperature reaches the set max temperature va...

Page 6: ...n groups and 1 condenser group Each of the 3 rows above is continued with three additional displays The arrow in the top corner of the display shows the way to the next display in the same area of ope...

Page 7: ...y None Main Menu The first setting is the Plant type When the Plant type has been selected it will al low several settings to be made For example Continue to the next menus All settings are explained...

Page 8: ...s Device for configuration of compressor and condenser Select pressure or saturation temperature Can be set during initial set up and must not be subsequently changed Temp press Fac Saturated Night si...

Page 9: ...suction gas temperature can be read here Superheat The measured superheat can be read here Day Night status The status of the day night function can be read here Load shed The status of the load shed...

Page 10: ...0 s Fac 120 s Configuration Configuration Control sensor Select the regulating sensor for the suction circuit Pressure transmitter Po Media temperature sensor S4 brine regulation Po is used for safety...

Page 11: ...ed AI demand Yes No Fac No Ss suction superheat Monitoring of superheat Define whether a signal from a common Ss sensor on the suction line should be received AI demand Yes No Fac No Injection ON fct...

Page 12: ...Compressor service Compressor service Comp 1 out of service The compressor can be taken out of operation so that the controller regulates without this compressor No Normal regulation Yes Regulating i...

Page 13: ...uency converter Step on off control of fans will be via relays Variable step The signals are parallel so external wiring can switch over to step e g if the frequency converter fails AO demand Step Spe...

Page 14: ...is measured in the suction line by Po and Ss Min 0 K Max 20 K Fac 0 K Superheat Max lim Alarm limit for excess superheating Min 20 K Max 80 K Fac 80 K Superheat delay Delay time before alarm is gener...

Page 15: ...t Set the output to thermostat AI demand Yes No Fac No Thermostat cut in Here set the temperature value at which the thermostat will cut in Min 50 C Max 150 C Fac 5 C Thermostat cut out Here set the t...

Page 16: ...ation value 10 C Pressure sensors Signal type 0 20mA 4 20mA AKS32 1 5V or AKS32R 10 90 ratiometric of 5 V supply voltage Important Current types must be connected to inputs Al 1 6 Current types must b...

Page 17: ...ction is on or off Digital inputs 1 18 Status of on off inputs Here you can see the status of the function alarm Analoge outputs 1 4 Status of analogue outputs Here you can see the size of the output...

Page 18: ...on the next page App no Display Suction group Condenser Speed Digital Scroll Stream CRII 1 step with unloa der Step Speed 17 3C2U FS 3 x 16 2C2U 6F 2 6 15 4C1U FS 4 x 14 3C1U 6F 3 6 13 2C1U 4F 2 4 12...

Page 19: ...gle 8C FS 8 speed C1 C2 C3 C4 C5 C6 C7 C8 Fan VSD Alarm F speed 3 Single 6C FS 6 speed C1 C2 C3 C4 C5 C6 Fan VSD Alarm F speed 2 Single 6C 6F 6 6 C1 C2 C3 C4 C5 C6 Fan 1 Fan 2 Fan 3 Fan 4 Fan 5 Fan 6...

Page 20: ...6 Compressor start and unloaders Fans Injection ON Alarm on DO15 Digital inputs DI1 DI18 Compressor safety inputs Fan safety input External main switch start stop HP safety switch LP safety switch Nig...

Page 21: ...condensing pressure Pc has been violated 3K below safety limit High pressure Pc Critical HP safety switch cutout High safety limit for external high pressure switch has been violated DI input HP switc...

Page 22: ...oid earth fault current Use double insulated transformer The secondary side must not be earthed Obtain 0 10 volts from terminals N and AO1 respectively N and AO2 PAY ATTENTION TO THE POLARITY of N Mod...

Page 23: ...riod times as PWM per 100 capacity is delivered when cooling takes place for the whole period An off time is required by the bypass valve within the period and an on time is also permitted There is no...

Page 24: ...remaining 50 100 for the unloader The unloader is connected to DO5 or DO6 Stream 6 The compressor capacity is distributed by up to 33 for one relay and the remaining 33 100 for the unloader The unload...

Page 25: ...ed Display output For type MMIGRS2 Data communication Modbus for AK SM 800 Environments 20 60 C During operations 40 70 C During transport 20 80 Rh not condensed No shock influence vibrations Enclosur...

Page 26: ...amage poor installation or site conditions can give rise to malfunctions of the control system and ultimately lead to a plant breakdown Every possible safeguard is incorporated into our products to pr...

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