CV500-ZS3AT1-EV2 Omron, CV500-ZS3AT1-EV2 Datasheet - Page 77

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CV500-ZS3AT1-EV2

Manufacturer Part Number
CV500-ZS3AT1-EV2
Description
C.V SOFTWARE 3.5in DISK
Manufacturer
Omron
Datasheet

Specifications of CV500-ZS3AT1-EV2

Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Wiring I/O Units
Output Units
Output Short Protection
Interlock Circuits
Output Leakage Current
64
R
If the leakage current is less than 1.3 mA, there should be no problem. If the leak-
age current is greater than 1.3 mA, determine the value and rating for the bleed-
er resistor using the following formulas.
I = leakage current in mA
where
I = leakage current in mA
R = Bleeder resistance (k )
W = Bleeder resistor wattage (W)
Output devices and Output Units can be damaged if the load connected to an
output terminal is shorted. Attach a fuse to the output circuit to protect your sys-
tem. A fuse is recommended even if the Output Unit is provided with an internal
fuse (e.g., Transistor and Triac Output Units), to increase easy of maintenance
and provide extra protection.
When the PC controls an operation such as the clockwise and counterclockwise
operation of a motor, provide an external interlock such as the one shown below
to prevent both the forward and reverse outputs from turning ON at the same
time.
This circuit prevents outputs MC1 and MC2 from both being ON at the same
time. Even if the PC is programmed improperly or malfunctions, the motor is pro-
tected.
If a transistor or triac Output Unit is used to drive a low voltage load, the leakage
current may prevent the output device from turning OFF. To prevent this, con-
nect a bleeder resistor in parallel with the load as shown in the following table.
Select the bleeder resistor using the following formula.
where
I = leakage current in mA
R = Bleeder resistance (k )
Eon = ON voltage of the load
R =
W =
E
PC
2.4 x I - 3
ON
I
2.3
R
7.2
PC
W min.
00501
00502
k
max.
Interlock circuit
OUT
COM
MC2
MC1
Bleeder resistor
L
R
MC1
MC2
Motor clockwise
Motor counterclockwise
Load power supply
Section 3-5

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