Milnor C4A, Manual, Page: 25 / 36

Ï Table of Microprocessor Inputs
Segment
Illuminated Input Name
Connector-
Pin
Input Status when
Illuminated
A1 Test Button (SHPS) MTA4-6 Test button depressed. (This input can be
tested only if the Test button is HELD
DEPRESSED while in the display test.)
B1 Door Interlock (CRDL) MTA4-5 Door is closed.
C1 Run/Attendant Keyswitch (SK01) MTA4-4 Keyswitch set to “Attendant.”
D1 not used — —
E1 Low Water Level Switch(SPLL) MTA4-2 Low level switch (SPLL) is made.
F1 Start Button (SHS+; optional) MTA4-1 Optional Start button is depressed
G1 not used — —
A2 Run/Test Keyswitch (SKM0) MTA5-6 Machine is in Test mode.
B2 Oversuds Button (SHDR) MTA5-5 Oversuds button is depressed.
C2 not used MTA5-4 —
D2 Normally-open Coin Switch
(SMS$; 1-7)
MTA5-3 Normally-open contact on coin mechanism
is closed.
E2 not used — —
F2 Normally-closed Coin Switch
(SMS$; 4-7)
MTA5-1 Normally-closed contact on the coin
mechanism is open.
G2 not used — —
Ê How To Test the Outputs
Press the Test button to enter the output test from the input
test. When the output test is active, the Deposit Coins display
flashes “00.”
The Table of Manual Outputs in this section lists the tests
of output relays and systems. Press the Test button to scroll the
appropriate test (see Table of Manual Outputs) into the Time
Remaining display. Press TO REDUCE SUDS to toggle the
ON/OFF status of the output or functional test. Press the Test
button to turn the output OFF and advance to the next output or
functional test.
In Test mode, the door locks when either motor is ener-
gized, and remains locked for 10 seconds after the motor is de-
energized. When the door is closed, certain relays operate in
combination; all relays function individually when the door is
open. Functional tests 17 and 18 are not available when the door
is open.
Î FIGURE 4
(MSTS0501AE)
Î Time Remaining Display Segments
TESTING DISPLAY, INPUTS, AND OUTPUTS
ON THE ELECTRONIC COIN WASHER-EXTRACTOR
MSTS0501AE/9274AV (4 of 5)