Danfoss PV05 Installation Manual page 8

Stepper Motor Output
• All valves are driven in a bipolar mode with a 24 V supply chopped to control the current (Current driver).
• The stepper motor is connected to the "Stepper Valve" terminals (see terminal assignment) with a standard M12
connection cable.
• To con gure stepper motor valves other than Danfoss stepper motor valves, the correct valve parameters must
be set as described in the Valve con guration section (see manual for details).
• The default valve setting in EKE 1A is: none.
• The correct valve must be de ned in "Valve con guration", i.e. parameter I067. An overview of valve types is
given in the "Parameter identi cation" section.
Valve Cable Connection
Stepper valve connector
A1
A2
B1
B2
Not connected
• All valves are driven in a bipolar mode with a 24 V supply chopped to control the current (Current driver).
• The stepper motor is connected to the "Stepper Valve" terminals (see terminal assignment) with a
standard M12 connection cable.
• To con gure stepper motor valves other than Danfoss stepper motor valves, the correct valve parameters
must be set as described in the Valve con guration section by selecting user de ned valve.
Guideline for long M12 cables on Danfoss stepper motor valves
• Long cables will lead to degradation of performance.
• You can overcome this degradation by changing the settings for the valve driver. This guideline is based on
the cable type being the same type as the standard Danfoss stepper motor cable.
Recommended wire size and cable distance between EKE controller and stepper motor valve
Cable length
Wire diameter
© Danfoss | Climate Solutions | 2024.03
ETS/KVS/CCM/ CCMT/CTR/ CCMT L
(Using Danfoss M12 Cable)
White
Black
Red
Green
-
1 m – 15 m
0.52 / 0.33 mm 2
(20 / 22 AWG)
ETS 8M Bipolar
Orange
Yellow
Red
Black
-
15 m – 30 m
0.33 mm 2
(20 AWG)
AN232086439413en-000706 | 8
ETS 6
Orange
Yellow
Red
Black
Grey