INSTRUCTION
i
Read this instruction before installation
and wiring of the product
CMF5U
Consult documentation in all cases where this symbol
is used, in order to find out the nature of the potential
hazards and any actions to be taken
1
CMF5U
Controller with display
CMF5U is a pre-programmed, configurable controller. It has 5 inputs/
outputs and can be configured to control temperature, CO
2
, humidity
or pressure. All configuration and normal handling is done using the
display and the knob on the front. From revision R18, it is possible to
connect an external PT1000 setpoint device.
Technical data
Supply voltage
24 V AC ±15%, 50...60 Hz
Power consumption
3 VA
Ambient temperature
0...50°C
Ambient humidity
Max. 90% RH
Storage temperature
-20...70°C
Display
Numeric / graphic. Background
illumination.
Inputs/outputs
Refer to connection illustrations and
table below
Terminal blocks
Disconnectable, so-called lift type for
cable cross-section max 2.5 mm
2
Protection class
IP20
Material, casing
Polycarbonate, PC
Weight
215 g incl. terminal blocks
Dimensions
122 x 120 x 64 mm (WxHxD incl. terminals,
fixed installation)
Pollution degree
2
Temperature settings
Temperature, supply air
-20..+60, 20...100, 60...140°C
Setpoints
-18...+60, 22...100, 62...140°C
External setpoint
0...40°C
Neutral zone
0...10°C
P-band
0…99°C
I-time
0…990 s
Min. limit damper
0…99%
Other settings
Setpoint values
CO
2
0...100% of max set value on UI1
General (GEN)
0...100% of max set value on UI1
Pressure (Pa)
0...100% of max set value on UI1
Scaling of UI1
0...10 V DC in
CO
2
10...9900 ppm
General
0...100%
Pressure
100 Pa...2500 kPa
Neutral zone
12.5% of max
P-band
CO
2
0...100% of UI1
General (RH)
0...100% of UI1
Pressure (Pa)
0...300% of UI1
I-time
0…990 s
Control setting 5
Outdoor compens. start
-20…+60°
C
Setpoint pressure at
-20°C outdoor temp.
0 Pa...2500 kPa
Installation
CMF5U must be mounted in a DIN-standard casing (minimum 7
modules) or in a cabinet, either on a DIN-rail or, using the two screw-
pockets provided, by being screwed to any suitable flat surface in the
cabinet. The controller can also be mounted in a cabinet door or other
control panel, using a suitable front-mounting kit (CMF-KIT).
The controller must be connected to a 24 V AC safety insulating
transformer providing mains insulation.
Follow table 1 below for connection.
Table 1. I/O connection terminals. Terminals 2, 20 and 50 are internally con-
nected.
Terminal Designation Operation
1
G
Supply voltage 24 V AC
2
G0
3
20
AGnd
Ref. for AO1 and AO2
21
AO1
0...10 V DC Output
22
AO2
0...10 V DC Output
41
DI+
Reference for DI1
42
DI1
Digital input
43
UI+
Reference for UI1 digital mode
44
UI1
0...10 V DC or Digital input
50
AGnd
Ref. for AI1, SPI and UI1 analogue
51
AI1
PT1000 temp. sensor input
52
SPI
Input PT1000 setpoint device
Digital inputs DI and UI are only intended to be used with a
potential-free contact or switch.
If the CMF5U and active sensors and
actuators connected to it share transformer, it is essential that the
same transformer-pole is used as reference for all the equipment.
Failure to do so will prevent the equipment from functioning as
intended and may also lead to damages.
For best protection against disturbances, a shielded twisted-pair cable
should be used for wiring the sensors. Ground the shield at one end.
The protection provided by the equipment may be impaired by im
-
proper use.
MA
Y 14
EN
