Installation and Commissioning

Installation and CommissioningConnecting Signals3 Connecting Signals3.1 Signal classesPower – supplies external motors and brakes.Control signals – digital operating and data signals (digital I/O, safety stops, etc.).Measuring signals – analog measuring and control signals (resolver and analog I/O).Data communication signals – field bus connection, computer link.Different rules apply to the different classes when selecting and laying cable. Signalsfrom different classes must not be mixed.3.2 Selecting cablesAll cables laid in the controller must be capable of withstanding 70 o C. In addition, thefollowing rules apply to the cables of certain signal classes:Power signals -Shielded cable with an area of at least 0.75 mm 2 or AWG 18. Note thatany local standards and regulations concerning insulation and area must always becomplied with.Control signals – Shielded cable.Measuring signals – Shielded cable with twisted pair conductors.Data communication signals – Shielded cable with twisted pair conductors. A specificcable should be used for field bus connections.CAN bus with DeviceNet for distributing I/O units;Thin cable according to DeviceNet specification release 1.2, must be used, e.g. ABBarticle no. 3HAB 8277-1. The cable is screened and has four conductors, two for electronicsupply and two for signal transmission.Note that a separate cable for supply of I/O load is required.Allen-Bradley Remote I/O;Cables according to Allen-Bradley specification, e.g. “Blue hose”, should be used forconnections between DSQC 350 and the Allen-Bradley PLC bus.Interbus-S:Cables according to Phönix specification, e.g. “Green type”, should be used for connectionsbetween the DSQC 351 and external Interbus-S bus.Product Manual IRB 1400 31