System description
10 TGH1322en/06.2009
MEDICS®includes:
zAC and 3(N)AC changeover and monitoring modules. Examples of modules in the MEDICS®sys-
tem include UMC..., USC..., UFC... and EDS.... insulation fault location systems.
zDisplay and operating units such as alarm indicator and operator panels or alarm indicator and
test combinations.
zCommunication between these components takes place via the BMS bus (two-wire connec-
tion).
zThe connection of third-party technical equipment by means of protocol converters (gate-
ways), via digital inputs and relay outputs.
The real strength of MEDICS®is to be found in communication between all involved com-
ponents and the resulting information provided to the user. Readiness for operation is mon-
itored continuously. Operating states, irregularities, faults and equipment failures are
displayed. From the user's point of view, this means high operational reliability.
3.2 UMC107E.. features
The UMC107E-.. changeover and monitoring module has the following features:
zTwo-pole changeover with contactors. Both contactors have a mechanical latching.
zVoltage monitoring on the preferred supply (line 1)
zVoltage monitoring on the second supply (line 2)
zVoltage monitoring at the output of the changeover and monitoring module (line 3)
zMonitoring of the switching elements to ensure that they are in the correct switching state and
for wire breaks (connecting wires, contactor coil, coil for latching module)
zInternal functional testing including checking of the changeover times
zMonitoring of the insulation resistance in the IT system
zMonitoring of the IT system transformer load current
zMonitoring of the IT system transformer load temperature
zMonitoring of the A-ISOMETER® 107TD47 connecting wires
zCommunication of components with one another via BMS bus
zCommunication with remote alarm indicator and test combinations and TM alarm indicator
and operator panels via BMS bus
zPossibility to set the time delay for the changeover in 50 ms increments for adaptation to the
total off-time acc. to DIN VDE 0100-710 (VDE 0100 Part 710):2002-11, section 710.537.6.2k
zCan be used in systems in accordance with IEC 60364-7-710:2002-11, sections 556.5.2.2, 556.7
and 556.8 and DIN VDE 0100-710 (VDE 0100 Part 710):2002-11, section 710.564.6 with a change-
over period = 15 s or = 0.5 s
The MEDICS®module is a configured unit and is only certified and tested in this
assembly. Do not make any changes to the components, their password-pro-
tected settings or the wiring without consulting Bender first.
In each case you should make the settings that are required for adaptation to the
application case in question and local conditions.
Warning
