2. Fasten the adapter plate with 2 screws M3.
3. Hang the SFAB in the adapter plate.
4. Press SFAB in the direction of the arrow.
Ä
SFAB snaps into place.
5.3
Plate mounting
1. Maintain lateral distance x = mm to earthed surfaces.
2. Fasten SFAB with washers and 2 screws M4.
–
Tightening torque: 1 Nm
5.4
Rotate display
The display can be rotated in 90° steps. The turning range is limited to approx.
270° by a stop.
Fig. 3: Rotate display
6
Installation
6.1
Pneumatic installation
•
Mount the hoses to port 1 and port 2 (flow direction
è
marked on the
product).
If the tubing is incorrect, the measured values are shown flashing on the display.
6.2
Electrical installation
WARNING
Risk of injury due to electric shock.
• For the electrical power supply, use only PELV circuits in accordance with IEC
60204-1/EN 60204-1 (Protective Extra-Low Voltage, PELV).
• Observe the general requirements of IEC 60204-1/EN 60204-1 for PELV circuits.
• Only use voltage sources that ensure a reliable electric separation from the
mains network in accordance with IEC 60204-1/EN 60204-1.
1. Use signal lines that are shorter than 10 m.
2. Configure binary outputs according to the wiring.
–
Tightening torque for the union nut at the plug: max. 0.5 Nm
Pin
Wire colour
1)
Allocation
Plug
1
Brown (BN)
Operating voltage
+24 V DC
M12, 5-pin
2
White (WH)
Binary output B (OutB)
3
Blue (BU)
0 V
4
Black (BK)
Binary output A (OutA)
5
Grey (GY)
Analogue output C
1) When using the connecting cable from the accessories.
Tab. 1: Pin allocation
Circuit diagrams
SFAB-...-2SA
SFAB-...-2SV
I
q
BN
+24 V
1
WH
BK
BU
0 V
GY R
L
PNP/
NPN
4
2
5
3
q
BN
+24 V
1
WH
BK
BU
0 V
GY R
L
PNP/
NPN
U
4
2
5
3
Tab. 2: Circuit diagrams
7
Commissioning
1. Switch on operating voltage.
Ä
SFAB is in RUN mode.
2. Define the switching behaviour of the binary outputs.
–
For flow measurement [FLW]: switching points [SP] and hysteresis [Hy]
–
For cumulative air consumption measurement [ConS] with OutA only: con-
sumption switching impulse [CI]
7.1
Switching outputs
7.1.1
Switching functions
7.1.1.1 Threshold value comparator in the flow rate measurement for OutA or
OutB
Function
NO (normally open)
NC (normally closed)
Switching function:
–
1 switching point (SP)
TEACH mode:
–
2 teach points (TP1, TP2)
Tab. 3: Threshold value comparator
7.1.1.2 Window comparator in the flow rate measurement for OutA or OutB
Function
NO (normally open)
NC (normally closed)
Switching function:
–
2 switching points (SP.Lo,
SP.Hi)
TEACH mode:
1)
–
2 teach points (TP1, TP2)
–
TP1 = SP.Lo, TP2 = SP.Hi
1) SP.Lo = smaller value, SP.Hi = larger value, independent of the teach sequence
Tab. 4: Window comparator
7.1.1.3 Consumption switching pulses [CI] for cumulative air consumption
measurement for OutB
A threshold value for air consumption can be set with the consumption switching
impulse [CI]. If the set threshold value is reached, a switching impulse is emitted
at the output Out A for 100 ms. With each switching impulse, measurement of the
air consumption is started again.
Setting NO (N/O (normally open) con-
tact)
Setting NC (N/C (normally closed)
contact)
Tab. 5: Consumption switching pulses
