User manual
µC
2
SE process chiller +030220416 - rel. 2.2 - 25.01.2013
Operational specifications
Analogue inputs resolution Temperature probes: interval -40T80 °C, 0.1 °C
Interval -20T20 °C, ±0.5 °C (probe excluded)
Interval -40T80 °C, ±1.5 °C (probe excluded)
Pressure measurement erro
r
The % voltage error with a range of input from 0.5 to 4.5 is ± 2% (excluding probe).
The error in the converted value may vary according to the settings of parameters /9, /10, /11, /12
Connector specifications
The connectors may be purchased using CAREL code (MCHCON0***) or from the Molex® manufacturer
Connector Molex® code Number of ways
39-01-2120 12
39-01-2140 14
Max. number of insertion/removal cycles for the connectors: 25 cycles
Code of the contacts according to the cross-section of the connection cables to the 12- and 14-pin connectors (use the special Molex® tool code 69008-0724 for crimping)
Contact Molex® code Cable section allowed
39-00-0077 AWG16 (1.308 mm2)
39-00-0038 AWG18-24 (0.823...0.205 mm2)
39-00-0046 AWG22-28 (0.324...0.081 mm2)
MCHSMLC*** pre-wired kits are also available
!
WARNINGS
If one transformer is used to supply both the µC
2
SE and the accessories, all the G0 terminals on the various controllers or the various boards must be connected to the
same terminal on the secondary, and all the G terminals to the other terminal on the secondary, so as to avoid damaging the instrument;
For use in residential environments, use shielded cable (two wires + shield earthed at both ends, AWG 20-22) for the tLAN connections (EN 55014-1);
Avoid short-circuits between V+ and GND so as not to damage the instrument. Perform all the maintenance and installation operations when the unit is not connected
to the power supply;
Separate the power cables (relay outputs) from the cables corresponding to the probes, digital inputs and serial line;
Use a transformer dedicated exclusively to the electronic controllers for the power supply.
Protection against electric shock and maintenance warnings
The system made up of the control board (MCH200005*) and the other optional boards (MCH200006*, MCH200485*, MCHRTF****, CONVONOFF*, CONV0/10A*, EVD000040*)
constitute a control device to be integrated into class I or class II appliances. The class of protection against electric shock depends on how the control device is integrated into the
unit built by the manufacturer. Disconnect power supply before working on the board during assembly, maintenance and replacement. The protection against short circuits due to
faulty wiring must be guaranteed by the manufacturer of the appliance that the controller will be fitted on.
Maximum length of the connection cables
NTC probes/ratiometric connection cables 10 m
Digital input connection cables 10 m
Power outputs connection cables 5 m
Fan drive output connection cables 5 m
Power supply cables
40