Electrical Connection - Winterhalter PT-M Operating Instructions Manual

18.2 Electrical connection

IMPORTANT maximum current drain at the transfer strip: 0.5 A.
 Connect the external dosing device to the 5-pin plug.
Terminals (arranged from top to bottom)
Terminal
L1
N
Rinse
(O18)
Wash
(O20)
Fill / Water
(O17)
a) hood / door closed
b) minimum water level in the tank
c) not in the self-cleaning programme
d) not while the machine is filling
e) not in descaling or basic cleaning programme
The parameters P704 and P709 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
 Connect to "Wash" terminal.
 Set time-delay relay on the
dosing device.
Connecting an external rinse aid dosing device
Example 1:
Hose pump with adjustable
output
 Connect to "Rinse" terminal.
 Set P709 = 0.
 Set output on the dosing
device.
Voltage is on
continuous voltage
parallel to solenoid valve (O7)
 while the machine is filling
 during rinsing
while the circulating pump is
running
while the machine is filling
parallel to solenoid valve (O7)
 while the machine is filling
 during rinsing
Example 2:
Hose pump with adjustable
output
 Connect to "Fill/Water" ter-
minal.
 Set P704=1.
 Set output on the dosing
device.
Example 2:
Hose pump with fixed output
(16 ml/min) (e.g. SP 16K )
 Connect to "Rinse" terminal.
 Set P709=2.
 Set potentiometer to maxi-
mum.
 Set dosing amount on the
machine.
External dosing devices
Condition Restriction
a) c)
a) c), d), e)
a), b)
a) c)
Example 3:
Hose pump with fixed output
(e. g. ESP 166, ESP 166C,
SP 166Z)
 Connect to "Fill/Water" termi-
nal.
 Set P704=2.
 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).
Setting
P709 = 0
P704 = 0
P704 = 1
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