C200HW-BC101-V1 Omron, C200HW-BC101-V1 Datasheet - Page 88
C200HW-BC101-V1
Manufacturer Part Number
C200HW-BC101-V1
Description
BACKPLANE, 10 SLOT, CPU
Manufacturer
Omron
Specifications of C200HW-BC101-V1
Peak Reflow Compatible (260 C)
No
Leaded Process Compatible
No
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Transistor Output Residual
Voltage
Wiring
Output Circuits
Output Leakage Current
Output Short-circuit
Protection
If a load connected to the output terminals is short-circuited, output elements
and printed boards may be damaged. To guard against this, incorporate a
fuse in the external circuit.
When connecting TTL circuits to transistor Output Units, it is necessary to con-
nect a pull-up resistor and a CMOS IC between the two. This is because of the
residual voltage left on the transistor output after the output turns OFF.
If there is a possibility of leakage current causing a transistor or triac to malfunc-
tion, connect a bleeder resistor across the output as shown below.
Determine the value and rating for the bleeder resistor using the following for-
mula.
Where
V
I = leakage current in mA
R = bleeder resistance in kΩ
V
V
I
I
R
ON
OFF
3. Relation between current when the PC is OFF and sensor leakage current:
CC
ON
IN
ON
: PC ON current
: PC input impedance
: Power voltage
: PC ON voltage
: PC OFF current
I
Refer to Input Leakage Current later in this section for details.
The I
whose OFF current specifications are not given.
OFF
= ON voltage of the load in V
Two-wire sensor
y I
OFF
leak
values differ for each Unit, but is always 1.3 mA for Input Units
PC
V
R
V
CC
R
OUT
COM
R
V
I
I
R:
OUT
leak
R
:
Bleeder resistor
: Sensor leakage current
: Sensor control current (load current)
–––
V
Sensor output residual current
Bleeder resistance
R
I
ON
IN
L
R
DC Input Unit
Load power supply
Section 3-2
73
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