Safety Information
Please read the following precautions carefully before using the equipment.
This unit contains high voltage circuits that may expose you to the danger of electric shock.
Means for disconnection must be incorporated in accordance with the wiring rules.
Do not open the enclosure without isolating the signal and supply sources.
Do not power the unit outside the values stated on the rating label.
Do not use damaged or frayed labels.
Do not dismantle or modify this equipment.
Do not mount the unit to unstable, irregular or non-vertical surfaces.
Do not place heavy objects on top of this unit.
Always ensure that care is taken when handling chemicals.
Never insert fingers into mechanisms without turning the power supply off first.
Operation
The Nexus Laundry units, are automatic dosing systems designed for use with commercial washing machines. The units are intended for indoor, fixed installation only. The means of disconnection must be incorporated in the fixed wiring, with an air gap of at least 3mm in each pole. The pumps are initiated by applying signals of between 90V and 240V AC or DC across the corresponding Inputs of the A and B rails on the power board. Note: signals of between 12V-24V and 110-240V AC or DC can be accepted by toggling the dip switches as shown on here – Wiring the Trigger Signals.
Standard Mode
Used with a standard host machine. The relevant pump will operate when a Signal is present for the duration of the Signal Acceptance Time and is equal to the programmed Pulse setting. The pump will then remain static for the period of the Delay Time, before operating at the programmed speed, for the programmed run time or chemical dosage. The pump will not operate again until the unit has reset. The unit can be selected to reset after the operation of the final pump (eg. pump 4 of a 4 pump unit) or on a signal to Input 8.
Relay Mode
Used with a computer controlled host machine. The pumps will operate for the duration that a signal is present across the corresponding inputs. Input 1 operates pump 1,input 2/pump 2, etc. The data management, Flush Valve and Machine Interrupt features will remain.
Levels Mode
Used with a standard host machine. The relevant pump will operate when a signal is present for the duration of the signal acceptance time and is equal to the programmed pulse setting. The pump will then remain static for the period of the delay time, before operating at the programmed speed, for the programmed Run Time or chemical Dosage. The pumps have three individual levels in which dosing can take place in each wash program and activated by the corresponding inputs. Input 1 operates pump 1, input 2/pump 2, etc.
Hot & Cold Mode
Based on the functionality of Standard Mode with the exception of only 9 programmable inputs. Input 2 & 3 combine as 1 programmable input to service a Hot and Cold solenoid connection from the wash extractor. Input 11 remains as the dedicated auto formula select input.
Auto Formula Select Mode
For Nexus units that do not have a Formula Select module. Allowing signals to be sent from the machine to select a specific program, based on this Binary List.