Winterhalter PT 500, Operating Instructions Manual

Page: 26 / 30

External dosing devices
24
16.2 Electrical connection
IMPORTANT maximum current drain at the transfer strip: 0.5 A.

Connect the external dosing device to the 5-pin pug.
Terminals (arranged from top to bottom)
Terminal Voltage is on Condition Restriction Setting
L1
continuous voltage
N
Rinse
(O18)
parallel to solenoid valve (O7)

while the machine is filling

during rinsing
a) c)
Wash
(O20) while the circulating pump is
running
a) c), d), e)
Fill / Water
(O17)
while the machine is filling a), b)
parallel to solenoid valve (O7)

while the machine is filling

during rinsing
a) c)
a) only with the hood closed
b) minimum water level in the tank
c) not in the self-cleaning programme
d) not while the machine is filling
The settings
and control when a voltage is present at the Fill/Water and Rinse terminals.
Connecting an external detergent dosing device
Example 1:
Hose pump with time-delay
relay and fixed output Example 2:
Hose pump with adjustable
output Example 3:
Hose pump with fixed output
(e. g. ESP 166, ESP 166C,
SP 166Z)
 Connect to “Wash” terminal.

Set time-delay relay on the
dosing device.
 Connect to “Fill/Water” ter-
minal.

Set .

Set output on the dosing
device.
 Connect to “Fill/Water” termi-
nal.

Set .

Set both potentiometers to
maximum.

Set dosing amount on the
machine.

If the capacity is not equal to
166 ml/min, set P706 (see
service instructions).
Connecting an external rinse aid dosing device
Example 1:
Hose pump with adjustable
output Example 2:
Hose pump with fixed output
(16 ml/min) (e.g. SP 16K )
 Connect to “Rinse” terminal.

Set .

Set output on the dosing
device.
 Connect to “Rinse” terminal.

Set .

Set potentiometer to maxi-
mum.

Set dosing amount on the
machine.