Download Print this page

Danfoss EKC 313 User Manual page 6

Controller for cascade systems with co2

Advertisement

Display view
Normal display on the controller can be set to read one of the following readings:
1: Valve's opening degree
2: Superheat
Only access via data communication
Factor for calculating the superheat reference
SHref = (S3-P0) x SHfactor / 100
Filter constant (delay) for calculating the superheat reference
Other refrigerant
If the refrigerant type cannot be selected directly via settings 1 through 33, it can
then be defined by the user. Select setting 13 and then set the refrigerant's three
constants via AKM.
Service
A number of controller values can be printed for use in a service situation
Read status of input DI (start/stop input)
Read the temperature at the S3 sensor
Read the temperature at the S2 sensor
Read the control's actual superheat
Read the control's actual superheat reference
Read the ETS valve's opening degree
Reading the calculated closing value for superheating.
Reading the condensation pressure calculated for temperature
Reading the condensation pressure (pressure at Pc)
Reading the evaporating pressure (pressure at P0)
Reading the evaporating pressure calculated for temperature
Manual control of outputs
For service purposes the valve outputs can be forced
However only when regulation has been stopped.
0: No override
1: Override: If the relay is defined for solenoid valve use in o36, the solenoid valve will
open. The opening degree of the ETS or ICMTS valve can then be set via o45.
Manual control of the ETS valve
When "o18" is activated (=1) the valve's opening degree can be determined from this
menu.
Operating status
The controller's operating status can be called forth by a brief (1s) activation of the
upper button. If a status code exists it will be shown. (Status codes have lower priority
than alarm codes. This means that status codes cannot be seen if there is an active
alarm code.
The individual status codes have the following meanings:
S10 (off ): Regulation stopped by the internal start/ stop.
S24: Regulation is in start-up mode
S44: Delay time, or the time it takes for system stability to be reached. Appears if one
of the regulating sensors fails.
6
User Guide RS8FZ402 © Danfoss 2015-07
o17
Display mode
For Danfoss only
n96
SH factor
n97
Ref Filter
P 0 Rfg.Fac A1
P 0 Rfg.Fac A2
P 0 Rfg.Fac A3
P c Rfg.Fac A1
P c Rfg.Fac A2
P c Rfg.Fac A3
Service
u10
DI status
u12
S3 Temp
u20
S2 Temp
u21
SH
u22
SH Ref
u24
Valve OD %
U19
SH Close
U20
Cond Temp Tc
U21
Cond Press Pc
U25
Evap Press P0
U26
Evap Temp T0
o18
Manual Ctrl
o45
Man Valve OD%
EKC State
(0 = regulation)
10
24
44
EKC 313

Advertisement

loading
Need help?

Need help?

Do you have a question about the EKC 313 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel