7.11.4 VLT® Extended Relay Card MCB 113The MCB 113 extends the I/O of the frequency converterby 7 digital inputs, 2 analog outputs, and 4 SPDT relays.The extended I/O increases flexibility and enablescompliance with the German NAMUR NE37 recommen-dations.The MCB 113 is a standard C1 option and is automaticallydetected after mounting.130BA965.101211109876543214321 12111098765432121 13 14+-+-+-+-+-+-+-+-+-+-A03A03Ext. 24 VDCDI1DI2DI3DI4DI5DI6DI7X45/ X48/ X46/X47/Relay 3 Relay 4 Relay 5 Relay 6Illustration 7.11 Electrical Connections of MCB 113To ensure galvanic isolation between the frequencyconverter and the option card, connect MCB 113 to anexternal 24 V on X48. When galvanic isolation is notrequired, the option card can be supplied through internal24 V from the frequency converter.NOTICETo connect both 24 V signals and high-voltage signals inthe relays, ensure that there is one unused relaybetween the 24 V signal and the high-voltage signal.To set up MCB 113, use parameter groups:• 5-1* Digital input• 6-7* Analog utput 3• 6-8* Analog output 4• 14-8* Options• 5-4* Relays• 16-6* Inputs and outputsNOTICEIn parameter group 5-4* Relay,• Array [2] is relay 3.• Array [3] is relay 4.• Array [4] is relay 5.• Array [5] is relay 6.Electrical DataRelaysNumbers 4 SPDTLoad at 250 V AC/30 V DC 8 ALoad at 250 V AC/30 V DC with cosφ = 0.4 3.5 AOver voltage category (contact-earth) IIIOver voltage category (contact-contact) IICombination of 250 V and 24 V signals Possible with one unused relay betweenMaximum throughput delay 10 msIsolated from ground/chassis for use on IT mains systemsDigital InputsNumbers 7Range 0–24 VMode PNP/NPNInput impedance 4 kWLow trigger level 6.4 VHigh trigger level 17 VMaximum throughput delay 10 msAnalog outputsNumbers 2Range 0/4 -20 mAResolution 11 bitLinearity <0.2%Specifications Design GuideMG20N602 Danfoss A/S © 09/2014 All rights reserved. 1717 7
