Danfoss EKC 313, User Manual, Page: 6 / 12

6 User Guide RS8FZ402 © Danfoss 2015-07 EKC 313
Display view
Normal display on the controller can be set to read one of the following readings:
1: Valve’s opening degree
2: Superheat
o17 Display mode
Only access via data communication For Danfoss only
Factor for calculating the superheat reference
SHref = (S3-P0) x SHfactor / 100
n96 SH factor
Filter constant (delay) for calculating the superheat reference
n97 Ref Filter
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.
P0Rfg.Fac A1
P0Rfg.Fac A2
P0Rfg.Fac A3
PcRfg.Fac A1
PcRfg.Fac A2
PcRfg.Fac A3
Service Service
A number of controller values can be printed for use in a service situation
Read status of input DI (start/stop input)
u10 DI status
Read the temperature at the S3 sensor u12 S3 Temp
Read the temperature at the S2 sensor u20 S2 Temp
Read the control’s actual superheat u21 SH
Read the control’s actual superheat reference u22 SH Ref
Read the ETS valve’s opening degree u24 Valve OD %
Reading the calculated closing value for superheating. U19 SH Close
Reading the condensation pressure calculated for temperature U20 Cond Temp Tc
Reading the condensation pressure (pressure at Pc) U21 Cond Press Pc
Reading the evaporating pressure (pressure at P0) U25 Evap Press P0
Reading the evaporating pressure calculated for temperature U26 Evap Temp T0
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.
o18 Manual Ctrl
Manual control of the ETS valve
When ”o18” is activated (=1) the valve’s opening degree can be determined from this
menu.
o45 Man Valve OD%
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:
EKC State
(0 = regulation)
S10 (off): Regulation stopped by the internal start/ stop.
10
S24: Regulation is in start-up mode 24
S44: Delay time, or the time it takes for system stability to be reached. Appears if one
of the regulating sensors fails.
44