Omron K3HB - Wiring and Connections; Terminal Arrangement and Power Supply; Sensor Power Supply and Output Wiring; Output Wiring: Relays, Transistors, BCD, DeviceNet

24 Digital Indicators K3HB-R/-P/-C
■ Derating Curve for Sensor Power Supply (Reference Values)
For 12V
Note: 1. The above values were obtained under test conditions with the standard mounting. The derating curve will vary with the mounting
conditions, so be sure to adjust accordingly.
2. Internal components may be deteriorated or damaged. Do not use the Digital Indicator outside of the derating range (i.e., do not use it in
the area labeled (1), above).
■ Internal Block Diagram
140
120
100
80
60
40
20
0
−20 −100 102030405060
Ambient temperature (°C)
Maximum current (mA)
1
Keys
Micro-
computer
Waveform
shaping circuit
Waveform
shaping circuit
Drive
circuit
Indications EEPROM
Drive
circuit
Digital input
circuit
Linear output
circuit
Filter
Pulse input
circuit
BCD
• Input circuit
• Output circuit
• Transistor
output circuit
Drive
circuit
Drive
circuit
Drive
circuit
Drive
circuit
Transistor
output
Relay output
Pulse input
BCD I/O
Event input
Linear output
Sensor power
supply
DeviceNet
Communication
s
DeviceNet
circuit
Communi-
cations
driver
X
Power su
pp
l
y
Power supply circuit (isolated)
V
DD V COM V O
DC-DC
Converter (isolated)
V O