NOTICE
Quickstart mode is not intended to be used during normal operation. It requires
read cycle triggering to be configured in the object trigger control settings in
SOPAS ET.
2. Switch on the supply voltage for the device, see "Supply voltage", page 43.
✓
After successful initialization, the “Ready” LED illuminates green.
3. Turn on the PC and start Windows.
6.7
Connecting the supply voltage
6.7.1 Note on the supply voltage of the device
NOTICE
Risk of damage to the device due to reverse polarity of the supply voltage!
Reversing the polarity of the supply voltage may, under certain circumstances, damage
the device due to short circuit currents!
The supply voltage input for the RFID device is designed with internal circuit protection
to provide reverse polarity protection. For this purpose, there is a blocking diode in the
current path of the positive pole (see figure).
The negative pole of the supply voltage (primary ground, GND_ext) is electrically iso‐
lated from the functional ground (GND). The functional earth has a direct galvanic con‐
nection to the metal housing of the device for RF-related technical reasons.
Depending on the mounting location of the RFID device and the reference potential of
the supply voltage, a reversal of the polarity of the applied supply voltage can lead to
the following situation:
+
+
−
2
+
−
−
F
++
−
+
− −
V
S
1
F
+
+
−
+
−
−
V
S
1
2
+
RFU61x-106xx RFU61x-106xx
GND
GND_ext
GND
GND_ext
Figure 23: Reversal of the polarity of the supply voltage: no effect on the RFID device (see
requirements)
1
Fuse
2
Blocking diode
The housing of the RFID device is connected to functional earth.
If the polarity of the supply voltage is reversed, the blocking diode blocks the negative
voltage on the positive pole of the RFID device.
6.7.2 Supply voltage
The voltage supply or power supply unit must satisfy ES1 requirements in accordance
with the currently applicable EN 62368-1.
ELECTRICAL INSTALLATION 6
8024536//2019-08-30 | SICK O P E R A T I N G I N S T R U C T I O N S | RFU61x
43
Subject to change without notice
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