Ampcontrol HPB - USER ADJUSTABLE SETTINGS; Group 1 Settings; Group 2 Settings

Ampcontrol Pty Ltd – ABN 28 000 915 542
HPB USER MANUAL
HPBB012 Version 9 – March/2020
Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version
Page 26 of 61
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9 USER ADJUSTABLE SETTINGS
9.1 Parameter Groups
The HPB Relay has many user adjustable settings, which are stored in non-volatile memory. These can
be viewed and modified via the HDM Remote Display Module. The setting are split into two groups as
outlined below. The first group of parameters relates to settings, which are linked to the power system
rather than the particular load connected to the outlet. These are always stored in the HPB Relay.
9.1.1 Group 1 Settings
Table 5: Group 1 Settings
Display
Message
Description
Pilot Mode:
Determines if the pilot is to be terminated with a Resistor or a HTU-1 Termination
Unit
EL Sens:
Sets the sensitivity for the Earth Leakage protection trip
EL Time:
Sets the trip time for the Earth Leakage protection EFLR
Test:
Sets the Earth Fault lockout level
Eft time:
Selects the test time for the Earth Fault lockout test to allow for line capacitance
U/V Trip:
Selects the under voltage trip threshold as a % of line volts
SC Relay:
Selects which HPB output relay is tripped in event of a short circuit trip
HTU rx Lev:
Adjusts the sensitivity of HTU data receiver
The second group of settings consists of parameters that are related to the load connected to the
protected outlet. These settings are stored, retrieved to/from the memory in the HPB Relay or the
memory in the HTU-1 Termination Unit, depending on the “Pilot Mode” setting.
If the Resistor Pilot Mode is selected the HPB Relay reads and writes to and from the relay’s internal
memory for the group 2 settings.
If the HTU Pilot Mode is selected the settings are sent to and retrieved from the memory in the Remote
Termination Unit.
9.1.2 Group 2 Settings
Table 6: Group 2 Settings
Display
Message
Description
HTU MC Type:
Allows the HTU 1 to transmit a descriptive code to identify the machine connected to
the outlet
HTU MC No:
Allows the HTU 1 to transmit an assigned machine number
OC I range:
Sets the basic current range
OC I mul:
Combines with OC range to define the full load current
OC Type:
Selects either very inverse or extremely inverse over-current curves
OC t mul:
Modifies the basic over-current time curves to achieve the desired trip times
Cur Bal Trp:
Adjusts the current phase balance trip level
SC I trip:
Sets the short circuit trip level
SC Trip t:
Sets the trip time for the short circuit function