Stulz C2020 User Manual

EN/07.2013/58/54
User CO3 can also be connected to SLAVE link of sequencing; in this case EO3 cannot be used.
User connection on SLAVE link is checked every one minute. User on the SLAVE link needs an external power supply.
4.8.2. System installing instruction
The system has different configurations according to the number of its boards.
All the boards are connected by a bus to their RS485 serial port called SLAVE and it’s necessary an external adapter to
split the SLAVE connector (Stulz accessory ACTADAPT). In this way two boards can be connect to the same serial port.
The TL2 jumper of the external boards of the system has to be closed, opened in the other boards.
In this paragraph it’s shown how the boards of the system are connected.
It’s possible to have a system from three to ten units. In the following table are shown the parameters involved for the
master board and the slave boards.
Parameters configuration for the master board: Parameters configuration for the slave board:
M01 = 1
M03 = 3 / 4 / 5 (it depends on the units involved)
M04 = 1 / 2 / 3 / 4 / 5 (it depends on the units involved)
– 5, if 5 boards can be on simultaneously (if 5 units are present)
– 4, if 4 boards can be on simultaneously (if 4 units are present)
– 3, if 3 boards can be on simultaneously
– 2, if only 2 boards can be on simultaneously
– 1, if only 1 board can be on: in this case only the leader board
is on (see par. 4.8.3)
M05 = it depends by the installer
M06 = 1
M01 = 2 / 3 / 4 / 5 (it depends on the units involved)
M03 = 3 / 4 / 5 (it depends on the units involved)
M04 = 1 / 2 / 3 / 4 / 5 (it depends on the units involved)
– 5, if 5 boards can be on simultaneously (if 5 units are present)
– 4, if 4 boards can be on simultaneously (if 4 units are present)
– 3, if 3 boards can be on simultaneously
– 2, if only two boards can be on simultaneously
– 1, if only one board can be on: in this case only the leader
board is on (see par.4.8.3)
M05 = it depends by the installer
M06 = 1
The parameter involved is:
• M190 ENABLE CONTROL OF SEQUENCING SYSTEM: pre-set = YES
Set the parameter M190 to YES to enable the control of the sequencing system. If parameter M190 is set to NO, all the
boards will work as in stand alone mode.
In the next paragraphs is described the control of the sequencing system.
4.8.3. Sequencing with stand-by management mode
The parameters involved are:
• M188 ENABLE CONTROL OF SEQUENCING SYSTEM: pre-set = YES
• M04 MAX NUMBER OF UNITS ON: pre-set = 1
• M05 ROTATION HOUR SETTING: pre-set = 24h
All the units on works like in stand alone mode. If an alarm occurs in a unit on, that unit is switched off and another is
switched on. At every interval time, settable by parameter M05, the unit with more running hours will be switched off and
the one with less running hours will be switched on.
UNIT 1
SLAVE USER
UNIT 2
SLAVE USER
ACTADAPT
UNIT 3
SLAVE USER

Stulz C2020 Specifications

General

Brand	Stulz
Model	C2020
Category	Controller
Language	English