Ampcontrol Pty Ltd
– ABN 28 000 915 542
PF1 USER MANUAL
MAG-165 Version 6
– March/2020
Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version
Page 22 of 71
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Earth Leakage Terminals (Terminals 28 & 29)
The EL S1 terminal (28) is to be wired to the S1 terminal of the outlet’s earth leakage toroid.
The EL S2 terminal (29) is to be wired to the S2 terminal of the outlet’s earth leakage toroid.
The earth leakage function of the PF1 is designed for use with the supplied toroid. All three of the
outlet’s phase conductors must pass through the centre of this toroid.
NOTE
The EL S1 terminal (28) and the EL S2 terminal (29) are only required
to be wired in if the PF1 r
elay’s earth leakage protection is to be
enabled.
S1 and S2 can be interchanged without affecting the PF1 relay’s
operation.
The loop impedance of the cables used to connect the EL toroid to
the PF1 relay must be less than 0.1
Ω.
It is required that this is wired
as a twisted pair + shield to Earth (on PF1 end only).
Terminals 30 & 31
Future use, do not connect anything to these terminals.
Phase CT Terminals (Terminals 32 & 33)
The PF S1 terminal (32) is to be wired to the S1 terminal of the installed phase current transformer.
The PF S2 terminal (33) is to be wired to the S2 terminal of the installed phase current transformer.
The supplied current transformer should be installed on one phase conductor to allow the PF1 to
monitor the (pump / fan) current that is being used by the outlet.
NOTE
The loop impedance of the cables used to connect the Phase CT to
the PF1 relay must be less than 0.1
Ω.
It is required that this is wired
as a twisted pair + shield to Earth (on PF1 end only).
Terminals 34 & 35
Future use, do not connect anything to these terminals.
RS485 (Terminals 36, 37 & 38)
RS485 has
not been implemented in the PF1
. If you desire to have RS485 (with the accompanying
Modbus RTU protocol) implemented in future PF relay family, please contact Ampcontrol to register
your interest.
Front Panel STOP Button (PF1 Fascia)
The Front Panel STOP button is located on the fascia of the PF1 relay. This button can be used to stop
the PF1 relay, provided that the PF1 relay is operating in either its Pump or Fan protection function. If
the PF1 does not have either of these functions enabled then the STOP button will not perform a
function. In this case, the state of the K1 relay will depend solely upon the heath of the enabled
protection functions.
