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Honeywell ML200 Series User Manual

Honeywell ML200 Series
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Chapter 4 - Troubleshooting
Phenomena Causes Measures
Input signal
cannot be off
plural different
power sources.
preventive diode. See the following
figure.
Trouble types and measures of output circuit
The followings table lists examples of common faults and the recommended measure.
Phenomena Causes Measures
Excessive
voltage is
allowed to
load when
output contact
is off.
l If load contains half-wave rectification
(solenoid valve may have it).
l If the polarity is , C is charged while the
voltage + power voltage charged to C is
allowed to both ends of diode (D). When
the polarity is . The maximum voltage is
approximately. 22.
Note: While using it as described
previously, the output element does not
have any problem but the performance of
diode (D) in load may be reduced,
probably causing a trouble.
l Connect a dozen ~
several hundreds k
resistor to a load in
parallel.
Load cannot
be off
l Leakage current from surge absorbing
circuit connected to an output element in
parallel.
l
Connect a dozen of k
resistor or C-R of which
impedance is equal to the
resistance to load in
parallel.
Note: If the length of wiring
from output module to load
is long, it may have leakage
current from the capacity of
cables.
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Honeywell ML200 Series Specifications

General IconGeneral
BrandHoneywell
ModelML200 Series
CategoryController
LanguageEnglish

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