ABB C1900 Series Installation Manual

Also see for COMMANDER 1900 Series: Programming guide User guide Programming guide Operating guide

Contents

ABB C1900 Series Installation Manual Manual pdf 8 page image

61 UnplugModule32 Release ClipRemove TerminalBlock AssemblyWarnings.• Instruments not fitted with the optional internal on/off switch and fuse must have a disconnecting device such as a switchor circuit breaker conforming to local safety standards fitted to the final installation. It must be fitted in close proximity tothe instrument within easy reach of the operator and must be marked clearly as the disconnection device for theinstrument.• Remove all power from supply, relay and any powered control circuits and high common mode voltages before accessingor making any connections.• Use cable appropriate for the load currents. The terminals accept cables up to 14AWG (2.5mm 2).• The instrument and all inputs and outputs conform to Mains Power Input Insulation Category II.• All connections to secondary circuits must have basic insulation.• After installation, there must be no access to live parts e.g. terminals.• Terminals for external circuits are for use only with equipment with no accessible live parts.• If the instrument is used in a manner not specified by the Company, the protection provided by the equipment may beimpaired.• All equipment connected to the instrument’s terminals must comply with local safety standards (IEC 60950, EN601010-1).Notes.• Always route signal leads and power cables separately.• To comply with Underwriter Laboritories (UL) certification, route signal leads and power cables in earthed (grounded),flexible metal conduit.• Use screened cable for signal inputs and relay connections. Connect the screen to the earth (ground) stud – see Fig. 4.10.• The terminal blocks can be removed from the main PCB when making connections – see Fig. 4.1. Before removing amodule, note its position.• If wall- or pipe-mounting to NEMA 4X hosedown standard is required, suitable cable glands must be used to preventwater ingress.Fig. 4.1 Removing Terminal Block Assembly4 ELECTRICAL INSTALLATION