Whirlpool ADVANTECH CAE2761K, Инструкция по установке, эксплуатации и обслуживанию

Страница: 46 / 178

2-32
AUXILIARY DEVICE OVERVIEW
INSTALLATION, WASHERS AND
FREESTANDING DRYERS
Auxiliary devices include but are not limited to
SMART Card devices, remote monitoring sta-
tions, Internet monitors, distributed money ter-
minals and other transaction stations. Cur-
rently the only commonly used auxiliary device
is a SMART Card. As more devices become
common, additional descriptions will be pro-
vided.
If the Auxiliary device is a SMART card unit, the
card acceptor can physically reside in the loca-
tion normally used by a coinslide or coindrop
mechanism. Alternately, a washer and dryer
model is offered without a metercase (full width
console model), but provides a mounting loca-
tion in the console for a SMART Card reader.
Auxiliary Communications Interface
Pinout Chart (P11 On The Board)
Pin Function
1 DC Power Return
2 DC Power
3 No Connection
4 Signal Input
5 Signal Output
6 Signal Ground
Security is only provided by physical access to
the auxiliary communications port. There are
no security codes imposed between the con-
trol and the auxiliary device. Therefore, the
auxiliary device must provide for its own secu-
rity layer of protection.
The auxiliary device connection on the control
board features a power output enabling device
to be connected to the control without requiring
an external low voltage power source (extra
transformer). This helps reduce the end user
cost of such devices. The transformer contains
an internal one-time use thermal fuse at the
primary, which opens when current draw is
greater than the 200-mA limitation. An open
thermal fuse not only disables the entire auxil-
iary power supply but also power to the control.
NOTE: When the thermal fuse opens the con-
trol must be replaced! Prior to installation of the
new control all auxiliary devices should be
checked per manufacturers testing procedures
to prevent control failure. Additionally the water
valve on washers and the bias heater circuits
should also be tested (see “Component Test-
ing” in section 5).
The +5 VDC and DC circuit ground indicated
below are isolated from the AC line by a UL
Class II transformer. No connection to earth
ground or cabinet ground is to be made by the
coindrop circuit. If a circuit other than an opto
beam interrupter is used, for example a micro-
processor controlled unit, the circuits must
remain electrically isolated from one another.
Molex

brand Mini-Fit Jr. Dual
Row Receptacle Part #39-01-3048
four circuits UL 94V-0 Terminal
Part
#44485-1211 18-24 AWG.
The receptacle provided with the
coindrop device wire length will be
a minimum of 46
″
from the
connector to coindrop device.
Molex

brand
#39-29-9046
Header on the
controller
CARD READER CIRCUIT
COINDROP CIRCUITS
AT P10 AND P11
0.01