The PF1 provides selectable control functionality for fan and pump installations while also providing earth leakage and earth continuity protection.
The PF1 has the ability to perform two standard protection functions which are compliant to AS/NZS 2081:2011 for earth leakage and earth continuity. In addition to these protection functions, the PF1 also provides selectable control functionality for pump or fan motor installations.
The Pump Protection Mode manages the no-load/under-current condition of a pump by monitoring the load current. When the load on the pump motor decreases due to the intake pipe not being fully submerged (known as snoring), the speed of the pump motor will rise to its maximum, which can burn out the pump motor in as little as 30 seconds. The under-current condition is detected by the PF1 which can apply a configurable sleep/run cycle to help prevent pump burnout due to a lack of water.
The Fan Protection Mode manages the gradual pre-inflation of flexible ventilation conduit, by applying a pulsed (burp) start-up sequence to the fan motor. This can prevent damage to the material of the ventilation tube during the initial stages of inflation.
The four protection/control functions of the PF1 can be independently enabled or disabled through Smart Tools. Smart Tools is a Windows software package, supplied with the PF1, which enables the user to configure the PF1 via the supplied USB cable.
The Ampcontrol PF1 protection relay is a multi-functional relay designed for hard rock mining applications on electrical outlets supplying pump or fan motors. When applied correctly, the specialised pump and fan protection modes can significantly reduce the risk of damage to equipment and thus can also considerably reduce maintenance requirements.
The PF1’s Pump and Fan operating modes can both be disabled, allowing the PF1 to also operate as a combined earth leakage and earth continuity relay on non-pump and non-fan outlets. This has the added advantage of reducing relay variants used across a given site (reduced stock, spares, maintenance and operator training costs).
Our Smart Tools Software is designed to support and improve user functionality of your PF1 Relay.
The PF1 logs a wide range of events including changes to settings, tripping of protection functions and changes in relay status, which enables effective trouble shooting and timely resolution of faults. The PF1 can be connected to a computer to view the event logs stored in the device.
Ease of use, set up and control
Included with the PF1 is a comprehensive interface which is intuitive and easy to use. It provides the user with access to the status of the relay and the ability to easily change settings and control the functionality of the device. A comprehensive help menu ensures that the user has all the tools required to easily operate the relay.
Ease of documentation
Settings that are saved on the PF1 can be downloaded to a computer, allowing remote viewing of relay settings, as well as allowing the easy transfer of data between devices to minimise downtime and risk of human error when setting up the device.
View the supporting information guide to assist in installing the software.