K3HB Datasheet, PDF (24/32 Pages) Omron Electronics LLC – Digital Indicators

■ Derating Curve for Sensor Power Supply (Reference Values)
For 12V
140
1
120
100
80
60
40
20
0
−20 −10 0
10 20 30 40 50 60
Ambient temperature (°C)
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
Pulse input
Pulse input
circuit
Waveform
shaping circuit
Keys
BCD I/O
Event input
Linear output
Sensor power
supply
BCD
• Input circuit
• Output circuit
• Transistor
output circuit
Digital input
circuit
Linear output
circuit
Filter
VO
EEPROM
Indications
Drive
circuit
Waveform
shaping circuit
Micro-
computer
Drive
circuit
VDD
Power supply circuit (isolated)
Power supply
Drive
circuit
Transistor
output
Drive
circuit
X
Relay output
Drive
circuit
Drive
circuit
DeviceNet
circuit
Communi-
cations
driver
DeviceNet
Communications
VCOM
VO
DC-DC
Converter (isolated)
24
Digital Indicators K3HB-R/-P/-C