40
Section I :: User
EN
C
shielded cable AWG 20/22 (4 wires + shield) (not supplied)
S
Shield of the shielded cable
D
branching board (E968573484)
T
telephone cable (E968573484)
SETTING THE CHILLER UNIT SERIAL NETWORK
CHILLER DISPLAY SHOWING THE SYSTEM PARAME-
TERS
STD COMPACT-Y / COMBY-FLOW / MINI-Y KEYBOARD
IMPORTANT!
This menu can be used only by qualified RHOSS S.p.A. personnel.
As for setting the protocol and serial address of the refrigerators/
heat pumps inserted in the Sequencer network, refer to the use and
maintenance manual or the instruction sheet of the remote keyboard
for Compact-Y, Mini-Y and Comby-Flow units. If Compact-Y, Mini-Y and
Comby-Flow units have a standard keyboard, follow the instructions
provided in the following section.
The screen displaying this information is found in the password-
protected "User" menu.
In the event a RHOSS Sequencer manages the network, set screen
“Supervisory system” as explained below.
When the chiller is connected with a sequencer in a serial network,
it receives the main parameters from the latter to activate the
compressors, such as the Set point and the virtual temperature probe.
When the chiller is connected to the sequencer, it displays the particular
state:
NOTE
: If the icon
on the bottom right is not displayed, it means
that a problem is detected in the serial connection: specifically:
1. RMST is displayed on the right next to the date.
2. Symbol
is displayed on the bottom right and confirms the
serial connection of the unit to the sequencer
Screen for setting the serial network
Supervision system
ALARM
!
Prg
MODE
ON
OFF
Supervisory system
Protocol: (*) OK
Speed: (**)
Identificat.nr.: (***) 001
ALARM
!
Prg
MODE
ON
OFF
Supervisory system
Protocol: RMST
Speed: 19200
Identificat.nr.: 00X
ALARM
!
Prg
MODE
ON
OFF
ALARM
!
Prg
MODE
ON
OFF
Offline net
RMST UNIT1
(*) Protocol: RS485 / RS232 / Modbus / LonMark / GSM.
(**) Speed: 1200 / 2400 / 4800 / 9600 (RS485 / GSM) / 19200 (RS485).
(***) Serial address: one single address is required. Ensure that this
address has not been used.
o
physical problem of the connection serial network (serial
disconnected from the unit, interrupted serial cable, failed serial board);
o
incorrect setting of the sequencer serial port parameters (incorrect
protocol selection, incorrect transmission speed).
If the sequencer does not display the serial connection, the following
alarm is shown:
If the unit is configured with RMST in serial network but button
on
the terminal is not flashing, it means that a problem is detected in the
serial connection.
Содержание KMSR
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