Technical Specifications; Power Supply - Danfoss EKE 1B Installation Manual

TECHNICAL SPECIFICATIONS

POWER SUPPLY

EKE has galvanic isolation by switch-mode power supply.
24 V AC ± 20 %, 50/60 Hz. Maximum power consumption: 18 VA.
Input voltage rating (DC): 24 V DC ± 20%, 15 W.
I/O TYPE
Analog
Voltage
inputs
NTC
Auxiliary
Supplies
Digital Voltage free
inputs contacts
Digital
Relay
output
Stepper Bipolar /
motor unipolar
Battery
backup
RS-485 RTU
Communi-
cation
CAN
© Danfoss | DCS (az) | 2018.06
NUMBER SPECIFICATION
Max. 15 V input voltage
Do not connect voltage sources to unpowered units without limiting the current
to analog inputs (overall 80 mA).
Open circuit HW diagnostics available for voltage input on : AI4
AI3 (Pe)
0 – 5 V ratiometric,
2
AI4
0 – 5 V , 0 – 10 V
AI1 (S3, S4), AI2 (S2)
2
NTC temperature probes, 10 kΩ at 25 °C
5 V +
1
Sensor supply: 5 V DC / 15 mA, overload protection approximately 150 mA
DI1, DI2
Steady current minimum 1mA
2 Cleaning current 100 mA at 15 V DC
On: RIL < = 300 Ω
Off: RIH > = 3.5 k Ω
C1-NO1
Normally Open: 3 A General purpose, 250 V AC, 100 k cycle
1
Normally Open: 3 A Inductive (AC-15), 250 V AC, 100 k cycle
Normally Closed: 2 A General purpose, 250 V AC, 100 k cycle
Stepper valves: A1, A2, A3, A4
Bipolar and unipolar stepper motor output:
- Danfoss ETS / KVS / ETS C / KVS C / CCMT 2 – CCMT 42 / CTR Valves
(green, red, black, white)
- ETS6 / CCMT 0 / CCMT 1 (black, red, yellow, orange)
1 Other Valves:
- speed 10 – 400 pps
- drive mode 1/8 microstep
- max. peak phase current: 1.2 A (848 mA RMS)
- max. drive voltage 40 V
- max. output power 12 W
VBATT: 18 – 24 V DC (24 V DC recommended):
1 – max. battery current: 850 mA at 18 V
– battery alarm will be activated below 16 V DC and above 27 V DC
RS485
1 Galvanic isolation
No Built-in termination
CAN - RJ
1
RJ connector to directly connect and supply a MMI
DKRCC.PI.RS0.C6.02 | 2