Relay Outputs; Sensors - PAW Friwa Manual Del Usuario

Friwa
The DHW heat exchange module is already assembled and wired. Points 3.1.1 - 3.1.4 are for information
only.
The mains connection (220 ... 240 V~) has to be carried out using the mains cable which is already connected to the ter-
minals. Service and maintenance work have to be carried out by skilled personnel only, in accordance with the valid local
-
+
regulations and directives (as VDE 0100, VDE 0185, VDE 0190 etc. in Germany).
Ground the Friwa properly at the mounting bracket!
OK / Set

3.1.1 Relay outputs

floating relay
us
Bus

3.1.2 Sensors

sensor-
ground-common terminal block
Nullleiter-Sammelklemme benutzen!
N
Use Neutral Conductor Collective Block
Schutzleiter-Sammelklemme
benutzen
Use PE Collective Block
R1/R2 1 (1) A (220 ... 240) V~
R3/R4 2 (1) A (220 ... 240) V~
4 (1) A (220 ... 240) V~
RP
T4A
electro- semi-
mech. conductor
neutral conductor-common terminal block
protective conductor-
common terminal block
Vor Öffnen Gerät spannungslos
schalten!
!
Isolate mains before removing
clamp-cover!
Masse-Sammelklemme benutzen
Use the Ground Collective Terminal Block
Sensors
L' L N
The controller is equipped with 5 relays in total to which
loads (actuators) such as pumps, valves, and auxiliary
relays can be connected:
• Relays R1 and R2 are semiconductor relays, also designed
for pump speed control:
R1 ... R2 = normally open R1 ... R2
N
PE
• Relay R3 and R4 are electromechanical relays:
R3, R4 = normally open R3, R4
N
PE
• Relay R5 is a floating / potential-free relay with change-
over contact:
R5-M
R5-A
R5-R
N
PE
-
R1 R2
P1 Pc
OK / Set
The controller is equipped with 9 sensor inputs in total. The
Bus
sensor ground connection (GND) is at the sensor ground
terminal block. The temperature sensors have to be connec-
VBus
ted to terminals S1 ... S6 and GND (either polarity).
The power supply of sensors S7 and S8 is carried out at
terminal 5V (Us).
S1
T-HW
S7
T-CW
0-3,8 V
yellow
= neutral conductor N (common terminal
block)
= protective conductor PE (common terminal
block)
= neutral conductor N (common terminal
block)
= protective conductor PE (common terminal
block)
= center contact
Nullleiter-Sammelklemme benutzen!
N
= normally open
Use Neutral Conductor Collective Block
= normally closed
Schutzleiter-Sammelklemme
= neutral conductor N (common terminal
benutzen
block)
Use PE Collective Block
= protective conductor PE (common terminal
block)
+
R1/R2
1 (1) A (220 ... 240) V~
R3 R4
R3/R4 2 (1) A (220 ... 240) V~
operating- /
RP 4 (1) A (220 ... 240) V~
VR
error relay
T4A
floating relay electro-
mech.
S2 S3 S4
T-S T-St T-R
S8
dV
0-3,8 V +5 V
white brown
R5
operating- /
error relay
L' L N
semi-
conductor
S5 S6
--- ---
5V S9
U On / Off
S
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