Danfoss EKC 326A Скачать руководство пользователя страница 16

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Manual RS8FM602 © Danfoss 02-2016 

EKC 

326A

List of literature

Instructions  RI8NG (extract from this manual).

 

Here you can see how controllers are mounted and 

programmed.

Installation guide for extended operation 

RC8AC

Here you can see how a data communication 

connection to ADAP-KOOL® Refrigeration control 

systems can be established. 

AD

AP

-K

OOL®

Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products 

already on order provided that such alternations can be made without subsequential changes being necessary in specifications already agreed.
All trademarks in this material are property of the respecitve companies. Danfoss and Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.

Installation  considerations
Accidental damage, 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 

prevent this. However, a wrong installation, for example, could still 

present problems. Electronic controls are no substitute for normal, 

good engineering practice.
Danfoss will not be responsible for any goods, or plant compo-

nents, damaged as a result of the above defects. It is the installer's 

responsibility to check the installation thoroughly, and to fit the 

necessary safety devices.

Error

Alarm message

ICMTS action (Vhp)

ETS action (Vgbp)

EKC supply interrupted

none

EKC AO remains 0 V – ICMT closes if ICMTS has 

battery back-up

No change in opening degree

EKC Standby – Main 

Switch OFF

A45 – Standby mode

ICMTS closes

ETS closes to 'Vgbp OD Min' setting

Sgc interrupted

E15 – Sgc o.c.

ICMTS regulates with   “Emergency cooling”

No change – ETS control attempts to maintain 

Prec

Sgc short circuited

E16 – Sgc s.c.

ICMTS regulates with   “Emergency cooling”

No change – ETS control attempts to maintain 

Prec

Pgc transmitter error

E20 – Pgc input err

ICMTS regulates with   “Emergency cooling”

No change – ETS control attempts to maintain 

Prec

Prec transmitter error

E39 – Prec input err

No change – ICMTS control continues 

ETS regulates with   “Emergency cooling”

StepMotor error

A43 – Step motor err

No change – ICMTS control continues 

ETS closes to 'Vgbp OD Min' setting

Pgc Max limit exceeded

A82 – PgcMax alarm

No change – ICMTS control attempts to lower  

Pgc

No change – ETS control attempts to maintain 

Prec

Pgc Min limit exceeded

A83 – PgcMin alarm

No change – ICMTS control attempts to raise Pgc

No change – ETS control attempts to maintain 

Prec

Prec Min limit exceeded

A84 – PrecMin alarm

No change – ICMTS control attempts to maintain  

Pgc

No change – ETS  control attempts to raise Prec

PgcRef Alarm

A94 – PgcRef alarm

No change – ICMTS control attempts to maintain  

Pgc

No change – ETS control attempts to raise Prec

PrecRef Alarm

A95 – PrecRef alarm

No change – ICMTS control attempts to maintain  

Pgc

No Change – ETS control attempts to raise Prec

EKC HW error

E1 – Controller fault

No change – ICMTS control continues 

No change – ETS control continues 

"Emergency  cooling"

The valve's average opening degree for the last six hours is 

regularly saved. This opening degree is used if there is a need for 

emergency cooling.

Valve function in alarm situations

Содержание EKC 326A

Страница 1: ...Controller to regulate CO2 gas pressure EKC 326A User Guide ADAP KOOL Refrigeration control systems...

Страница 2: ...reading Heat recovery with adjustable reference pressure 0 10 V Optimum heat pump operation System The pressure in the gas cooler is controlled by the valve Regula tion must have inputs from both a pr...

Страница 3: ...nput signal of 0 10 V as follows A signal of 1 5 V or above can activate the function and increase the reference to Pgc HR Min If a variable reference is required then a signal between 2 10 V can be c...

Страница 4: ...4 Manual RS8FM602 Danfoss 02 2016 EKC 326A Examples Simple heat recovery system Partial heat recovery system Heat recovery system or heat pump system...

Страница 5: ...s a signal The function is activated by a voltage signal between 0 10 V Between 0 2 V it is regulated normally At 2 V the reference changes to the setting Pc HR Min At 10 V the reference will increase...

Страница 6: ...correspondingly n32 Vhp OD Max Minimum opening degree The closing degree of the ICMTS valve can be limited here Limitation takes place by increasing the lower part of the voltage signal that is sent...

Страница 7: ...c Ctrl Receiver reference The reference for receiver control is set here n91 Prec Ref Maximum opening degree The ETS CCM valve s opening degree can be limited here The setting is expressed as a percen...

Страница 8: ...the gateway when the menu is set in pos ON The setting will automatically change back to Off after a few seconds o04 Frequency Set the net frequency o12 50 60 Hz 50 0 60 1 Pressure transmitter definit...

Страница 9: ...apacity through displacement of the pressure reference 43 Alarms E1 Fault in controller Controller fault E15 Cut out Sgc sensor Sgc o c E16 Short circuited Sgc sensor Sgc S C E20 Fault on the signal f...

Страница 10: ...efly will display Prec bar Start stop Start stop of regulation r12 OFF 0 On 1 On 1 Ramp for reference after heat recovery r65 0 1 20 1 Displacement of the Pgc minimum reference n89 during heat recover...

Страница 11: ...done in this way Cut out the supply voltage to the controller Keep both buttons depressed at the same time as you recon nect the supply voltage 0 V valve closed 10 V valve open Cable connection 060G1...

Страница 12: ...een EKC 326A and the ETS CCM CCMT valve exceeds 5 m a filter must be mounted to obtain the correct valve function The filter must be placed close to EKC 326A L 5 m 5 m L 50 m Dimensions Connection Typ...

Страница 13: ...m Signal range 2 10 V Sensor input 1 pcs Pt 1000 ohm Alarm relay 1 pcs SPST 250 V a c AC 1 4 A ohmic AC 15 3 A inductive Actuator ICAD mounted on ICMTS Voltage signal 0 10 mA ETS CCM or CCMT 2 8 Step...

Страница 14: ...ure plus set p band As such gas can still be sent through the valve Receiver pressure s min limit A minimum receiver pressure limit can be set If the controller register receiver pressure below the se...

Страница 15: ...EKC 326A Manual RS8FM602 Danfoss 02 2016 15 Functions for regulation reference...

Страница 16: ...rupted none EKC AO remains 0 V ICMT closes if ICMTS has battery back up No change in opening degree EKC Standby Main Switch OFF A45 Standby mode ICMTS closes ETS closes to Vgbp OD Min setting Sgc inte...

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