10.8 MCB 113 Extended Relay CardThe MCB 113 adds 7 digital inputs, 2 analogue outputs and 4 SPDT relays to the standard I/O of the drive for increased flexibility and to comply with theGerman NAMUR NE37 recommendations.The MCB 113 is a standard C1-option for the Danfoss VLT® AutomationDrive and is automatically detected after mounting.For information on mounting and installation of the option, please seeMounting of Option Modules in Slot C1 earlier in this chapterNB!The MCB 113 can be used in all frame sizes. It can be installed at the same time as an MCO 305 (+ fan) in frame size A2, A3 and B3(bookstyle), but not in the other frame sizes. Note that MCO305 cannot control the MCB 113.Illustration 10.5: Electrical connections of MCB 113MCB 113 can be connected to an external 24V on X58/ in order to ensure galvanical isolation between the VLT® AutomationDrive and the option card.If galvanical isolation is not needed, the option card can be supplied through internal 24V from the drive.NB!It is OK to combine 24 V signals with high voltage signals in the relays as long as there is one unused relay in-between.To setup MCB 113, use Par. groups 5-1* (Digital input), 6-7* (Analog output 3), 6-8* (Analog output 4), 14-8* (Options), 5-4* (Relays) and 16-6* (Inputsand Outputs).NB!In par. 5-4* Array [2] is relay 3, array [3] is relay 4, array [4] is relay 5 and array [5] is relay 6Electrical DataRelays:Numbers 4 SPDTLoad at 250VAC/ 30VDC 8 ALoad at 250VAC/ 30VDC 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 in-betweenMaximum thru-put delay 10 msIsolated from ground/ chassis for use on IT mains systemsDigital Inputs:Numbers 7Range 0/24VMode PNP/ NPNFC 300 Design Guide 10 Options and AccessoriesMG.33.BC.02 - VLT® is a registered Danfoss trademark 21910
