Contactor Monitoring Device CMD

• Contactor Monitoring Device • CMD

Contactor Monitoring Device CMD 06. 09. 2007 CMD Präsentation_GB. ppt Observe the protection mark to ISO 16016 Moeller Gmb. H MD-PMM / Nitschky Monitoring the main contacts of a contactor

Contactor Monitoring Device CMD Agenda 06. 09. 2007 • Short overview saftey applications CMD Präsentation_GB. ppt • Features of the CMD • How works a CMD? • Approvals Observe the protection mark to ISO 16016 Moeller Gmb. H MD-PMM / Nitschky • Combinations with Moeller switchgear

Contactor Monitoring Device CMD Risk assessment with EN 954 -1 for saftey related circuits 06. 09. 2007 CMD Präsentation_GB. ppt Observe the protection mark to ISO 16016 S – Severity of injury S 1 – slight injury S 2 – Serious irreversible injury Moeller Gmb. H MD-PMM / Nitschky P – Possibility of avoiding hazards P 1 - possible P 2 – Scarcely possible F- Frequency and time of exposure to the hazard F 1 – Rarely to often and/or short duration F 2 – Frequent to continuous and/or a long duration

Contactor Monitoring Device CMD Saftey category according to EN 954 -1 06. 09. 2007 n Saftey category B, 1, 2: CMD Präsentation_GB. ppt è at a failure the saftey function could be lost n Saftey category 3, 4: è at the first failure the saftey function has to work again Observe the protection mark to ISO 16016 Moeller Gmb. H MD-PMM / Nitschky

Contactor Monitoring Device CMD Application: category 3 06. 09. 2007 CMD Präsentation_GB. ppt Observe the protection mark to ISO 16016 Moeller Gmb. H MD-PMM / Nitschky Two contactors serial at the main circuit

Contactor Monitoring Device CMD 06. 09. 2007 Undervoltage release Start / Stop CMD Präsentation_GB. ppt Observe the protection mark to ISO 16016 Emergency stop Moeller Gmb. H MD-PMM / Nitschky M NC - Mirror Contact NO - Auxiliary Contact The CMD monitors the main contacts of a contactor via a mirror contact (N/C). During a fault (welded main contacts) the upstream circuit-breaker will be tripped by undervoltage release. Additionally, the internal relay contacts are monitored via an auxiliary contact (N/O) of the contactor.

Contactor Monitoring Device CMD Features 06. 09. 2007 Today CMD Präsentation_GB. ppt • The CMD reduce the cost for the second contactor Tomorrow Observe the protection mark to ISO 16016 • The time to make the main wiring is reduced M M Moeller Gmb. H MD-PMM / Nitschky

Contactor Monitoring Device CMD Operation mode of the CMD 06. 09. 2007 Saftey contact CMD Präsentation_GB. ppt Main contactor Observe the protection mark to ISO 16016 Moeller Gmb. H MD-PMM / Nitschky Current status of the contactor Target status of the contactor Compare the control voltage of the contactor with the condition of the main contacts

Contactor Monitoring Device CMD Signalisation and Test 06. 09. 2007 CMD Präsentation_GB. ppt Observe the protection mark to ISO 16016 Moeller Gmb. H MD-PMM / Nitschky Signalisation by LED 1 Contr: Signalisation of the control voltage Target status of the contactor 2 UVR: Supply of the undervoltage release Test The undervoltage release has to be tested once a year without load

Contactor Monitoring Device CMD Approvals 06. 09. 2007 CMD Präsentation_GB. ppt Observe the protection mark to ISO 16016 Moeller Gmb. H MD-PMM / Nitschky Declaration of EC conformity EC Type-Examination-Certificate UL and CSA approval Ship approvals

Contactor Monitoring Device CMD Combination with contactors 06. 09. 2007 CMD Präsentation_GB. ppt Observe the protection mark to ISO 16016 AC operated (220 -240 V 50/60 Hz): DILM 7 to DILM 1600, DILH 1400 to DILH 2000 DC operated (24 VDC): DILM 7 to DILM 500 Moeller Gmb. H MD-PMM / Nitschky 1 NC contact as mirror contact to IEC/EN 60947 -4 -1 annex F is needed 1 NO contact as interlocked opposing contact to IEC/EN 60947 -5 -1 annex L is needed

Contactor Monitoring Device CMD Combinations with Circuit breakers and switch disconnector 06. 09. 2007 CMD Präsentation_GB. ppt Observe the protection mark to ISO 16016 Circuit breaker: PKZ 2, NZM 1 to NZM 4 Switch disconnector and molded case switches: N 1 to N 4, NS 1 to NS 4 Moeller Gmb. H MD-PMM / Nitschky Undervoltage release: 18 VDC U-PKZ 2(18 VDC), NZM 1 -XUVL NZM 2/3 -XU, NZM 4 -XUV