Pump Signal Connections - Milnor MWR09E5 Series General Operating And Troubleshooting

Increasing the programmed injection time makes any variation less significant. Use pumps
and/or valves sized to allow inject times of at least 10 seconds. If injection times for a specific
chemical vary widely from one formula to another, consider using two pumps or valves for the
same chemical. Actuate one pump for injecting small quantities, and use both pumps or valves
for larger quantities.

Pump Signal Connections

1.4.1.
®
The OneTouch microprocessor controller used on Milnor
certain relay contacts when chemicals are desired and to flush the chemical system after each
injection. These signals are 240 volts AC and cannot be made potential-free. Any device driven
by this signal can draw up to 37 milliamperes.
Note 2: The manifold flush signal is effective only if the chemical supply system provided by others is
properly designed and connected to a flushing water source.
CAUTION 9 : Component Damage Hazard—Board components will burn out and require
board replacement if devices driven by inject signals do not meet the above electrical
specifications. Pumps usually draw a higher current than specified above, and will cause board
damage.
This machine provides signals for three chemicals and a manifold flush. Table 3 contains the
connection details for these signals. All chemical signal connections are available on terminal
strip TBS, as shown in Figure 4. This terminal strip is located in the electrical enclosure on the
left rear of the machine, where the machine power connections are made.
Note 3: Unless the "Timer Stop" feature is employed, each chemical signal is enabled for 30 seconds,
starting 15 seconds after the desired level (usually low level) is achieved for the bath.
Table 3: Chemical Injection Signals
Signal
Component
Chemical 1
Chemical 2
Chemical 3
Manifold Flush
Chemical Relay
Detergent K13
Bleach K14
Finishing
K15
chemicals
none K12
Chapter 1. Commissioning
®
T_E, G_E, and similar models closes
Processor Board TBS Terminal
Connection
MTA6-7,8
MTA6-3,4
MTA6-1,2
MTA6-9,10
PELLERIN MILNOR CORPORATION
Number
1
2
3
4