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Programming and Operation,
continued
37
Testing of Line Decoders
Once you install and program the line (field)
decoders into your system, you can then test to
make sure they are working properly. The MDC2
Controllers have a built-in decoder test
that tries
each decoder in sequence.
Testing the operation of the decoders
1. From the
Main Menu
, move the
indicating
arrow
to
4. Test
and select
OK
.
2. Move the
indicating arrow
to
1. Test of Line
Decoders
and select
OK
to reach the
Decoder
Test
screen.
Note:
The controller tests the decoders in the order
you entered them into the system. The blinking
markers
and
box
show the field is active.
3. Scroll
up
or
down
until you reach the decoder
you want to start the test and select
OK
to setup
the test. The controller will not test any decoder
that is listed before the one you select to start the
test.
4. Select
OK
to start the test. After a few seconds,
the screen displays the test results in three
current measurements (mA).
Note:
The
Before
current refers to the standby
current,
Inrush
is the current the solenoid needs to
open and
hold
is the holding current the solenoid
needs to stay open. The
Before
value depends on
the number and type of decoders your system uses,
Inrush
should fall between 290 to 700 and
hold
should be 15 to 20 milliamps higher than the
Before
value. If the decoder is connected to two or more
solenoids, the
Inrush
will be slightly higher and
hold
currents will be double in proportion (30-40 mA).
*** Test Menu ***
1. Test of Line Decoders
2. Test of Sensor Decoders
3. Short Finding
4. Line Survey
5. Return
12:37 PM
1 Active Dec. OK : Next, - : Finish
E5 999 Min
Before Inrush Hold
50 525 70
OK
–
14:02:30
Decoder Test, OK : Next, - : Finish
Start with Decod >E5<
OK
–
14:02:30
Содержание MDC2
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