Service Parameters For Troubleshooting; Technical Data - Danfoss EKC 315A Manual

Manual
Service Parameters for Troubleshooting (view only)
Current TQ valve's (discontinued valve) actuator temperature
Reference for TQ valve's (discontinued valve) actuator temperature
Analog input current signal (terminals 18 & 19) from PLC, etc.
Analog output current signal on terminals 2 & 5
Digital input status. Combination of parameter r12 and terminals 1 & 2
Ongoing cut-in time for thermostat or duration of last completed cut-in
Temperature of S2 temperature sensor (used for superheat)
Current calculated superheat
Controller's superheat reference (target superheat controller is trying to achieve)
Valve's opening degree
Evaporating pressure based on pressure transmitter
Evaporating temperature based on pressure transmitter and selected refrigerant
Temperature of S3 temperature sensor (used for thermostat function for solenoid valve)
Control reference (setpoint + any offset provided by an input signal from a PLC or other
source)
Pressure transmitter current signal (terminals 14 & 15)
* The displayed units will depend on the units setting parameter r05.

Technical Data

The supply voltage is galvanically isolated from the input and output
signals, but the input and output signals are not galvanically isolated
from each other.
Supply voltage
24 V ac ± 15%, 50-60 Hz
80 VA maximum (5 VA for controller and additional 55 VA when the
controllers powers the coil for an AKV/A pulse valve or an additional
75 VA when used with the discontinued TQ valve).
Input signals
Current input signal on terminals 18 & 19, 4-20 mA or 0-20 mA
Pressure transmitter, 4-20 mA from AKS 33
Digital input on terminals 1 and 2 for start-stop of regulation
Temperature sensor input, 2 PT 1000
Analog output (terminals 2 and 5)
Current signal: 4-20 mA or 0-20 mA
Load: 200Ω maximum
2 Relay outputs
each SPST, AC-1/4A resistive or AC-15: 3A inductive
Ambient temperature
During operation: +14°F to 131°F (-10 °C to 55°C)
During transport: -40°F to 158°F (-40°C to 70°C)
Approvals
EU Low Voltage Directive complied and EMC demands re CE-marking
complied with
LVD tested according to EN 60730-1 and EN 60730-2-9
EMC tested according to EN50081-1and EN 50082-2
© Danfoss USCO (HMR_MKS), 04-2008
EKC 315A Industrial Evaporator Controller
Description of parameter
USCO.PD.RD0.A1.22 /521U0092
Parameter
2.13 in
(54 mm)
Mounting: DIN rail
Enclosure: IP 20 (approximately NEMA 1)
Weight: 0.66 lbs (300 g)
Display: LED, 3 digits
Terminals: Maximum 2.5 mm 2
Units*
u04 °F or °C
u05 °F or °C
u06 mA
u08 mA
u10 ON-OFF
u18 minutes
u20 °F or °C
u21 °F or °K
u22 °F or °K
u24 %
u25 psig or bar
u26 °F or °C
u27 °F or °C
u28 °F or °C
u29 mA
2.84 in
(72 mm)
multicore
11