CHANGEGAARDTM PUMP AUTO CHANGEOVER MODULE Pump Change Over on Time/Fault Suitable for use with Single or Three Phase Variable Speed Pumps Programmable Alarm Status Twin Relays for Alarm/Plant Shut-Down/Status Indication Triple Volt Free Relay Board (Option) Remote Start/Stop Volt Free Contacts Emergency Stop Volt Free Contacts Visual/Audible Alarm Pumping Technology ChangeGaard Changeover Module The Smedegaard process of continuous product development has resulted in the high quality and compact ChangeGaard pump auto changeover module. Its ease of fixing, small size (180x110x90mm), simplicity of wiring and program flexibility makes it the ideal solution in smaller applications that do not warrant the use of a full BMS system. The ChangeGaard is designed to be used in conjunction with the fault and remote start/stop volt free contacts which are fitted as a standard component to Smedegaard's complete range of SimFlex 'A' Glandless and Omega EcoFlex Glanded variable speed pumps. It can also be used, with single phase pumps of up to 370 Watts, to supply the power to the pump motors. An added benefit is it's ability to be installed into a panel to control the contactors and starters associated with larger fixed speed pumps. Description The designed use of the ChangeGaard is to act as a pump auto changeover panel on twin pump, duty/standby, systems. By utilisation of the pump volt free fault and remote start/stop contacts the ChangeGaard is able to switch over the pumps on a fault and also on a settable hours run signal. Remote Indication The standard ChangeGaard is fitted with two NO-NC (normally open - normally closed) relays one being configured in fail safe mode to switch in the event of a power failure to the controller. Either of these relays can be configured to switch on any combination of Pump A Run, Pump B Run, Pump A Fault, Pump B Fault, System Fault, Service Due Reminder or signal via the external fault volt free contacts. Local Indication The status is shown on the integral illuminated display but, for added safety, there is an alarm beeper (can be muted) and a visual alarm. Both of these are, as the relays, assignable to react to various status indications. Inputs There are two sets of volt free contacts terminals for remote inputs. One is for use as a remote start/stop and is well suited for being connected to a time clock or other similar mechanism. The other is suitable for use as an emergency stop for example, or for connection to a pressure switch to register a catastrophic drop in system pressure. This contact can be configured to activate an assignable relay. Electrical Supply 230-1-50 Hz. Idle mode - 3 Watts. Standard Features ■ Auto changeover on fault and run time. ■ Programmable remote status indication. ■ Remote start/stop contacts. ■ Emergency stop contacts. ■ Assignable audio/visual alarm. ■ Service reminder, contact details settable. Optional Extras ■ Plug in triple volt free relay board. In addition to the above, an optional triple volt free contacts relay board is also available to extend the range of remote indication. ChangeGaard Dimensions 110mm ChangeGaard 90mm 180mm It is Smedegaard’s policy to continually improve and develop its product range. We reserve the right to change specifications without prior notice. Whilst every care has been taken to ensure the data is correct, no responsibility can be taken for inaccuracies or misprints. Pumping Technology Smedegaard Pumps Ltd United Kingdom Tel. +44 (0)1278 458 686 Fax +44 (0)1278 452 454 info@smedegaard.co.uk www.smedegaard.co.uk T. Smedegaard A/S Denmark Tel. +45 43 96 10 28 Fax +45 43 63 17 66 info@smedegaard.dk www.smedegaard.dk /11/10