Operating Modes - Idex Knight On-Premise Pro Instruction Manual

OPERATING MODES

Normal operation:
The system is capable of 8 user selectable formulas
with each formula having unique run times and delay
times for each pump. Signals from the washer trigger
the pumps, then the On-Premise Pro's microprocessor
takes control to count down delay and/or run times.
Wash formulas can be selected by either of the two
following options:

The machine operator can select the formula using
the formula SELECT button to choose the appropriate
wash formula before the washcycle begins.

Auto formula select can be used to allow the washer
to control the formula choice with a signal.
The first time pumps 1 - 6 are signaled, they will run
―level‖ 1. The next time these pumps are signaled in the
same formula, they will run ―level‖ 2 providing that any
signal lockout time (if used) has expired. Pumps 1 - 6
will not run again until the Load Count Pump is signaled,
formula number changed, or the RESET button is
pressed.

No more than 3 pumps (if applicable) should be
programmed to run simultaneously.

Pumps 1 - 6 are the only pumps with ―two level‖
capability. Level 1 can be ―skipped over‖ if desired, by
not programming any pump run time for that level.
When the first signal is applied, no pump action will
occur — the second signal will then activate the
second level as usual.
Flush mode:
The Flush Pump turns on with any pump running, then
activates its own programmed run time when the pump
shuts off. The system ―looks‖ for contact at the flow
switch terminals (see wiring diagram) to verify proper
flush. If a flow switch is not used, jumper JP1 should be
in place. A ―flush error‖ happens when no contact is
detected (switch or jumper) at the FLUSH ERR
terminals while only the Flush Pump runs. Flush errors
are indicated by the Remote Control flashing and ―F‖ in
the pump window. Also, the buzzer (optional) will sound.
Programming pump ―F‖ is only required for systems that
will inject with a flush manifold.
Page 6 of 20
Relay mode:
The intended use of relay mode is for machines that are
microprocessor controlled. The pumps run for as long
as their respective signals are present. The system ―by-
passes‖ its run time and delay time capabilities during
relay mode operation.
Formula numbers are not selectable in relay mode (as
they are not needed) — an ―r‖ will be displayed in the
formula number window indicating the system is in relay
mode. Flush mode can be used in relay mode if
chemicals are to be flushed with water to the washer.
To set relay mode, enter the access code, then use
FORMULA SELECT to choose formula ―r―. Set the load
count pump as explained in the Load Count section.
(
Note: There is a one second qualifying time in relay
mode. For the pump to run for 10 seconds the signal
must be set for 11 seconds.
Drain mode:
Drain Mode maximizes the versatility of the OP-Pro by
providing a simple and reliable signal interface to
washers that do not have typical supply signal
connections, or where the washer's supply signals are
not operating correctly.
Installation time is quicker, as there is only one signal
source required from the washer for Drain Mode to
operate. See page 11 for complete details.
)
0901133 Rev: A (11/13)