Connecting External Control - Including Bms Functions - Frico SIRe AC Quick Manual

Connecting external control - including BMS functions

COM 1 COM 2
1 2 3 4 5 6
7 8 9 10
+ - + -
Terminal
Functions
RJ12 (6/6) SIRe internal communication
COM1
RJ12 (6/6) SIRe internal communication
COM2
BUS
D0
Modbus/RTU via Rs-485.
D1
See separate manual:
Gnd
SIRe Modbus
ROOM RJ11 (4/4) Pin 1+2 and 3+4, SIReRTX (accessory)
1+ RPM indication
2- 0-10V DC OUT (max 5 mA).
Signal from SIRe indicates 0-100 % fan speed.
Always active.
3+ Heat indication (Actuator control)
4- 0-10V DC OUT (max 5 mA).
Signal from SIRe indicates 0-100 % heat step.
Control signal to modulating actuator. Always
active.
5 Outdoor sensor (Mandatory)
6 SIReOTX (included).
7 Setback temperature
8 External voltfree (dry) contact.
Close to activate night temperature.
Always active.
9 External alarm IN
10 External voltfree (dry) contact.
Closes to indicate an alarm. If used for filter
guard, set Parameter:
Installer menu > Filter guard > External filter
guard = On
Always active.
11 External rpm
0-10V DC IN.
12
Control fan speed 0-100 %.
Set parameter: Installer menu > External control
> 0-10V Fan control = On
SIRe Competent
ROOM
BUS
1112 15 161718
13 14
+ -
+ -
SIReC1X
SIReA1X
19 20
21 22
13 External heat control
14 0-10V DC IN.
Control heat 0-100 %.
Set parameter: Installer menu > External
control > 0-10V heating control = On
15 External on/off
16 External voltfree (dry) contact. Closes to
activate system.
Set parameter: Installer menu > External
control > External On/Off = On
17 Door contact (Mandatory)
External voltfree (dry) contact. SIReDC
18
(included) or other contact (e.g. in BMS or door
automatic).
Door open = Closed contact
Door closed = Open contact
19 BMS Alarm out
20 Internal voltfree (dry) contact, max 3A, 230V.
Always active. Indicates alarm.
Closed contact = Alarm
Open contact = No alarm
21 BMS indication OUT
22 Internal voltfree (dry) contact, max 3A, 230V.
Always active.
Indicates operation.
Closed contact = In operation
Open contact = Not in operation
GB
31