Setting The Address Of The Prack Pr300 Board - Carel PRK300L3FK User Manual

ENG
If the terminal detects inactivity of the entire pLAN network, that is, it does
not receive any messages from the network for 10 seconds consecutively,
it clears the display and shows the following message:
NO LINK
A.3.2

Setting the address of the pRack pR300 board

The pLAN address of the pRack boards can be set from any pGD1 terminal,
using the following procedure:
1.
set address 0 on the terminal (see the previous paragraph for details
on how to set this address);
2. power down the pRack pR300 board;
3.
disconnect any pLAN connections to other boards from the pRack
pR300 board;
4. connect the terminal to the pRack pR300 board;
5.
power up the pRack pR300 board, while pressing the
buttons on the terminal together. After a few seconds the pRack
pR300 board begins the start-up sequence and the display shows a
screen similar to the one below:
####################
selftest
please wait
####################
6.
when this screen is displayed, wait 10 seconds and then release the
buttons;
7. the pRack pR300 board interrupts the start-up sequence and shows
a confi guration screen, similar to the one below:
pLAN address: 0
UP: increase
DOWN: decrease
ENTER: save & exit
Then set the pLAN address using the
8.
Confi rm the address by pressing
completes the start-up sequence and uses the set address.
A3.3 Example of confi guring a system with 2 suction
and condenser lines using the Wizard
Below is a possible example of using the Wizard to confi gure a typical
system like the one shown in the fi gure, with 2 suction lines and 2
condenser lines on diff erent boards:
I/O
J1 5
J1 2 J1 3 J1 4
J11 pLAN
J10 4 3 2 1
J2 5 BMS2 J2 6 FBus2
pR300
FieldBus card B M S card
J1 J24 J2 J3 J4 J5
I/O
pRack +0300025EN rel. 1.3 - 17.12.2015
and
and buttons on the terminal.
: the pRack pR300 board
I/O
J1 5
J1 2 J1 3 J1 4
pLAN J11 pLAN
J10 4 3 2 1
J2 5 BMS2 J2 6 FBus2
pR300
FieldBus card B M S card
J1 J24 J2 J3 J4 J5
I/O
Fig. A.w
The preliminary operations to be completed before confi guration are as
follows:
1. with the boards not connected in the pLAN, power up the second
pRack board and set the pLAN address to 2 (for details see Appendix
A.2)
2.
power down and connect the two boards in the pLAN, plus any
terminals, as described in paragraph 3.7
3.
power up the boards and wait for the Wizard selection screen to be
displayed
Then select the type of system as SUCTION & CONDENSER:
Wizard
Type of Installation:
SUCTION & CONDENSER
Set the type of compressors and control for suction line 1, answering the
questions prompted by the pRack pR300 software, e.g.:
Wizard
Compressor config.
Compressor type:
Compressor number:
Wizard
Compressor config.
Regulation by:
Measure unit:
Refrigerant:
Wizard
Compressor config.
Regulation type:
PROPORTIONAL BAND
Enable integral time
action:
After having confi gured suction line 1, a prompt will be shown to
confi gure another suction line, obviously the answer is YES:
Wizard
Compressor config.
Configure another
suction line:
To the next question, which prompts if there is a pRack board dedicated
to the second line, answer YES; in this way, the pRack pR300 software
prepares to confi gure the board with address 2 in the pLAN:
Wizard
Compressor config.
Dedicated pRack
board for
suction line:
92
Ib01
Ib03
RECIPROCATING
3
Ib40
PRESSURE
barg
R404A
Ib41
YES
Ib43
YES
Ib45
YES