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© Copyright Muuntosähkö Oy – Trafox
Superintend IMD
During the bus scanning and manual resistance measurement, test current
pulses are fed into all channels of all PEC-01 units connected to the system.
Therefore Network Scan / Network View and manual resistance
measurement are permitted in medical locations only when there is no
activity in the area to be monitored.
When setting the alarm limit, the thermal coefficient of the nominal resistance of copper
(+0.4%/ºC) must be taken into account. Therefore, a 40-degree increase in
temperature causes a 16% increase in the measured resistance value, for example. Due
to the thermal change, the measured resistance may thus also be smaller than the one
provided in the table.
The errors of the PEC-01 unit can be acknowledged either from the IM-01.MED unit or
from the PEC-01 unit itself if the cause of the error has been eliminated. During the
alarm, the red LED fault indicator BLINKS. If the fault has been deactivated but not
acknowledged from the IM-01.MED or PEC-01 unit, the alarm LED indicator is on
steadily.
The RESET button acknowledges a fault only if the fault situation has been fixed,
in other words, the PE wire break has been repaired or resistance is below the
provided limit. The faults of all channels are acknowledged at the same time.
Note that if the FAIL LED blinks, the fault is still active and cannot be
acknowledged. The acknowledged faults are also removed from the alarm menu
of the IM-01.MED unit.
The POWER ON / SIGNAL indicator is on when the power is on and the connection
to the IM-01.MED unit is OK.
SYSTEM FAIL blinks if there is an internal fault in the device, or if no correctly
interpreted command has been received from the IM-01.MED unit within three
seconds. The IM-01.MED unit interprets the fault situation as a REMOTE UNITS
and WIRE FAULT error and gives an alarm.
The channel-specific OK indicator is on if the channel is connected and OK. It
switches off if there is an active or unacknowledged fault in the channel. In other
words, one of the channel LED indicators is always on if the channel has been
configured for use. If the PEC-01 unit is in the SYSTEM FAIL mode, in other
Power is on and
communication is OK
Defective unit or
communication error
Channel connected and OK
Fault in channel
Acknowledging all
faults
Summary of Contents for SUPERINTEND IC-01
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