INSTRUCTION
Read this instruction before installation
and wiring of the product
CMF5U
Consult documentation in all cases where this symbol
is used, in order to nd out the nature of the potential
hazards and any actions to be taken
1
CMF5U
Controller with display
CMF5U is a pre-programmed, congurable controller. It has 5 inputs/
outputs and can be congured to control temperature, CO
2
, humidity
or pressure. All conguration 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,
xed 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 at 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.
MAY 14
EN
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