Diehl Metering SCYLAR INT M Installations- Und Bedienungsanleitung Seite 21

Installation Guide
Connections
When using 4-terminal sensing
remove the short-circuit bridges
BLACK
1 5 6 2 26 3
U+ I+ I- U- U+ I+ I- U-
HIGH TEMP A
BLACK WHITE
43 9 10 11 43 9 10 11 53 29 40 41 53 39 40 41
ST V+ 0V ST V+
FLOW SENS A FLOW SENS B
Flowsensors with 2 wires: Clamp 10/11, with 3 wires: 9/10/11
GRAY RED
16 17 18 19 16 17 18 19
ENERG VOLUM ENERG VOLUM
PULS OUT 1-2 PULS OUT 3-4
4 Pulse Outputs
galvanic insulation
max. 40 V/100 mA
Puls Input Cannels A / B
Reed Pulse output
Opto Pulse output or NAMUR
Open Collector
Ultrasonic Sharky FS 473
Ultrasonic Sharky FS 475 / FUE380
Magnetically inductive Optiflux 4300
Status signals for the detection of the flow direction are to be connected to clams 43 and 53 respectively
If there are shielded cables they are to be connected to clamp 11
The pulse inputs AUX 1 / 2 have the same tech. specifications as those of channel A / B.
Attention: The equipotential bonding has to be designed in a way that all parts of the heating/cooling
system are also sufficiently electro-conductively connected with the main grounding terminal
If separate grounding wires are used the electro-conductive connection remains In case the heating
pipes are cut off (e.g. because of reparation work).An insufficient equipotential bonding might result in
misoperation or the destruction of the components
V 1.8
When using 4-terminal sensing
remove the short-circuit bridges
7 8 4 26 1 5 6
U+ I+ I- U-
LOW TEMP A HIGH TEMP B
GREEN BLUE
0V ST V+ 0V ST V+
AUX1 PULS IN AUX2 PULS IN
GREEN RED
24 25 50 51 55 56 57 58 59 60 61 62
1+ 1- 2+ 2- 3+ 3- 4+ 4-
M-BUS RELAYS
40V/1A
Flowsensor Connectors
AUX 1 / 2 Pulse Inputs
WHITE
2 26 3 7 8 4 26
U+ I+ I- U-
LOW TEMP B
GREEN BLUE
70 71 72 73 74 75
0V V+ IN 0V V+ IN 0V
AUX3 IN AUX4 IN
2 Analog Inputs
AUX 3/4
ORANGE GRAY
ANALOG OUT ANALOG OUT
4 Analog Outputs 0/4 - 20 mA
galvanic insulation
max. Loadresistance : 500 Ohm
9 (V+)
user-defined
not to be connected
not to be connected brown (S)
not to be connected
brown ( ) white
Vcc
not to be connected
not to be connected
39 (V+)
Use clamp 1 - 4 just
if 4-terminal sensing
is used
USB
POWER
GREEN
26 27 28
N L
230V~/50Hz
Fuse
230 V/1A
Type: T
10 11 (0V)
user-defined
white (-)
+ -
blue ( )
(Puls) GND
56 57
D D-
40 41 (0V)
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