Ampcontrol Pty Ltd
– ABN 28 000 915 542
IPM V2 USER MANUAL
IPM2B003 Revision 15
– MAY/18
Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version
Page 55 of 83
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12.7 Analogue Output
The IPM Relay provides an isolated 4-20mA analogue output. The output continuously monitors Average
Current, Overload, Earth Leakage and the Insulation Level of the relay. The Monitor Output settings can
be selected at „4-20mA Output‟ (Level 6, Screen 28). Settings available are O/L (0-100%), Iave (0-
250%), E/L (0-
100%) and MΩ (0-40MΩ). The analogue output status in milliamps is shown on the „IPM
Relay and Keys‟ screen, (Level 4, Screen 2).
12.8 IPM Alarm Functions
The IPM has several standard alarm functions. If any are triggered, the Alarm Relay (ALM) picks up.
Each has a selectable alarm level, and can be disabled. Generally the alarms are self-resetting once the
alarm condition is removed.
1. High Current Alarm - Is activated by the phase currents exceeding the selected threshold. It is
selected via the „High I alarm‟ setting (Level 6, Screen 21) and is adjustable from 100% to 600%
FLC and „off‟. The highest of the three phase currents is used. Time delay = 1 sec. Setting the
alarm level to „off‟ disables this function.
2. Overload Alarm - Is activated by the thermal accumulator exceeding the selected threshold. It is
selected via the „O/L Alarm Lev‟ setting (Level 6, Level 22) and is adjustable from 50% to 95%
and „off‟. Time delay = 2 s. A motor overload trip overrides this alarm. Setting the alarm level to
„off‟ disables this function.
3. Under Cur. Alarm - Is activated by the phase current falling below the selected threshold. It is
selected via the „Under I Alarm‟ setting (Level 7, Screen 10) and is adjustable from 32% to 96%
and „off‟. This alarm is only activated when the motor is running (MCI input closed). Time delay =
2 sec. Setting the alarm level to „off‟ disables this function.
4. Earth Leakage Alarm - Is activated when the earth leakage current exceeds a set level. The
alarm level is selected via the „E/L Alarm Lev‟ setting (Level 6, Screen 24) and can be set to 20%,
50%, 80% and „off‟. The earth leakage alarm has a time delay of 1 second and auto resets when
the earth leakage current falls
below the selected level. Setting the alarm level to „Off‟ disables
this function.
5. Insulat. Test Alarm - Is activated when the meg-ohm resistance of each phase to earth, as a
result of an insulation test, equals or falls below the alarm level. The alarm level is set at 1.5
times the trip setting.
The alarm message is displayed until a new test is initiated or the <ENT> key is pressed while displaying
the alarm message. The
„Insulat. Test Alarm‟ is also recorded in the Event Log.