A traditional hardwired backup circuit designed to reliably run up to a 3 pump pumping station in the event of the wet well primary control failure. Enables easy retrofit to existing panels through efficient space optimisation whilst maintaining use of standard easily obtainable components.

Benefits:

• Very compact: Up to 5 times smaller than the competition. Enclosure fits inside most MCC Control sections.

• Reliable operation: Uses highly reliable and proven components

• Ease of maintenance: Minimal maintenance required, but simple to maintain through plug in replaceable relays and timers.

• Highly configurable: Functions covering a large number of pumping station types and control methods

• Simple to install: Simple connectors for all I/O and power

• Minimal training required: Consistent backup operation across all sites

Highlights:

• Very reliable, standard relay and timer components

• Float activated hardwired backup (direct or debounce timer selectable)

• Local indication of backup and pump status

• Fully independent hardwired backup with a simple ‘jumper’ option to enable a backup inhibit (i.e. if primary control is still healthy then the ultrasonic failed may be used to inhibit hardwired backup protection) – ‘Jumper’ position set during commissioning

• Isolated relay contacts for pump outputs (increased PCB track width to accommodate higher voltages) This removes the need for further interposing relays within pump start compartments / panels (‘Finder’ relays with 8A contacts used)

• 24V DC

• Efficient use of space for the timers and relays leading to a very small footprint to enable installation within existing control compartment (enclosure dimensions (including timer protrusion): 200mm x 120mm x 110mm)

• No need for glanding / terminations: Simple connectors leading in/out of the enclosure for input signals, pump run outputs and Power input.

• Separate debounce timer, pump assist timers (for pumps 2 and 3)

• Run on timer to continue pumping after float level returns to normal

• Very simple installation and commissioning requirements: easy integration with existing panels

• Number of operations counter for predictive maintenance and indication of Primary control issues

Functionality:

• Selectable debounce timer for Float input

• Up to 3 pump control in the following selectable configurations:

  • 2 pump Duty / Standby

  • 2 pump Duty / Assist (with delay option on starting pump 2)

  • 3 pump Duty / Standby / Standby

  • 3 pump Duty / Assist (with delay option on starting pump 2) / Standby

  • 3 pump Duty / Assist (with delay option on starting pump 2) / Assist (with delay option on starting pump 3)

• Telemetry signal and external indicator outputs for ‘backup active’

• Simple integration into existing control panel: Enables quick efficient installation of minimum hardwired backup control using traditional ‘reliable’ standard components

• Easy to commission

• Provides a standard ‘minimum’ level of control across the estate

• Cost effective method of upgrading existing / faulty hardwired backup systems

• External ‘Backup Active’ indicator output