Flomec QSI Series, Руководство по установке

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9
WIRING DIAGRAMS
Figure 6
The pulse output from the QSB
provides 2500V galvanic isolation
from the QSB digital circuitry to
the external customer equipment.
The QSB pulse output is an open
collector design which requires
an external pull up resistor to
an external power supply. The
resistance must be chosen such
that the QSB will not sink more than
30mA of current. The external power
supply voltage must also be less
than +36VDC to prevent damage to
the QSB.
QSB PC BOARD
Pulse Out - Open Collector Square Wave
WIRING DIAGRAM
QSB
ISOLATED PWR SUPPLY
12-36VDC / 12-30VAC, 50-60 Hz
12VDC OR 12VAC, 50-60 Hz
(POLARITY DOESNT
MATTER)
Coil A & B
(Non-polarized)
SIGNAL
GROUND
+
(+) (-)
Power (-)
Power (+)
Pulse Out (+)
Pulse Out (-)
-
+
-
OPEN COLLECTOR OUTPUT
WILL REQUIRE A PULL-UP
RESISTOR TO SUPPLY
VOLTAGE
Output: Pulse Output
ISOLATED
PWR SUPPLY
12-30VAC, 50-60Hz
/ 12-36VDC
Customer
Equipment
Open Collector
Pulse Input
Coil B
Coil A
Unpowered
Pickup Coil