User manual

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µC

SE process chiller +030220416 - rel. 2.2 - 25.01.2013

Case 2: several controllers connected in network powered by the different

transformers (G0 not connected to earth). Typical application of several controllers

that are part of different electric control boards.

Attention:

 If one transformer is used to supply both the μC

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 controller;

 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 controller.

 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.

2.8.3

Protection against electric shock and

maintenance warnings

The system made up of the control board (MCH200005*) and the other optional

boards (MCH2000060, MCH2004850, MCHRTF****, CONVONOFF0, CONV0/10A0,

EVD000040*) constitutes 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.

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.

2.9

Programming key (copy of the set-up)

The PSOPZKEY00 and PSOPZKEYA0 programming keys for CAREL controllers allow

to copy the complete set of µC

SE parameters. The keys must be connected to the

connector (AMP 4 pin) envisioned in the controllers and can operate with

instruments that are live or not, according to that indicated in the user notes of the

specific controller. There are two main functions envisioned and they are selected

via two dip switches (situated under the battery lid). These are:

 loading the parameters of a controller into the key (UPLOAD);

 copying the key onto one or more controllers (DOWNLOAD.

Parameters can only be copied via controllers with the same code. The data

loading operation into the key (UPLOAD) is always allowed. To facilitate

identification of the key to be used, CAREL has enclosed a label on which the

programming loaded can be described or the machine to which it refers.

The key can only be used on µC

SE controllers that have the same Firmware

version.

2.9.1

UPLOAD - copy parameters from

controller to key

Procedure:

 open the rear door of the key and position the two dip-switches at OFF. Close

the door;

 connect the key to the controller terminal;

 press the key button and hold, checking the signalling sequence of the LED:

from red, it turns green after a few seconds;

 if the signalling sequence is that indicated above, the copying operation has

been successful (green LED on); the button can be released and the key

disconnected from the instrument. In the event of different signals: if the

green LED does not switch on or if flashing, there is a problem. See the

following table for the meanings of the signals.

2.9.2

DOWNLOAD - copy the parameters from

the key to controller

Procedure:

 open the rear door of the key and position dip-switch n. 1 at OFF and dip-

switch n. 2 at ON. Close the door;

 connect the key to the controller;

 press the key button and hold, checking the signalling sequence of the LED:

from red, it turns green after a few seconds;

 if the signalling sequence is that indicated above, the copying operation has

been successful (green LED on); the button can be released. After a few

seconds the LED switches off and the key can be disconnected from the

instrument;

 in the event of different signals: if the green LED does not switch on or if

flashing, there is a problem. See the relative table for the meanings of the

signals.

The operation is completed in 10 seconds. If the completed signal with green LED

on is not given within this time period, it is good practice to attempt the operation

again, releasing and pressing the button again. In the event of flashing, see the

relative table for the meaning of the signal.

signal

LED

error meaning and solution

red LED

flashing

Batteries flat

start copy

The batteries are flat, the copy cannot

be made. Replace the batteries (only

for PSOPZKEY00).

Green LED

flashing

Batteries flat

copy end (only for

PSOPZKEY00)

The copy operation has been

performed correctly but at the

end of the operation the battery

voltage is low.

Flashing

simultaneously

red/green LED

(signal

orange)

Instrument not

compatible

The parameters set-up cannot be

copied because the controller model

connected is not compatible. This

error only for DOWNLOAD function,

check the controller code and copy

only onto compatible codes.

Red and green

LEDs on

Copy error Error in the data copied. Repeat the

operation, if the problem persists,

check the batteries and key

connections.

Red LED on

stable

Data transfer error The copy operations has not

terminated due to serious

data transfer or copy errors. Repeat

the operation, if the problem persists,

check the batteries and key

connections.

LEDs off Batteries

disconnected

Check batteries (for PSOPZKEY00)

Power supply unit not

connected

Check power supply unit (for

PSOPZKEYA0)

Fig.1 Fig.2