Electrical Installation - ABB C1900 Series Installation Manual

4 ELECTRICAL INSTALLATION

Warnings.
• To comply with Underwriter Laboratories (UL) and Canadian Standards Association (CSA) certification, route signal leads
and power cables in earthed (grounded), flexible metal conduit. Use the Position 1 protective ground stud
terminal module ground stud) to ground the flexible metal conduit.
• Instruments not fitted with the optional internal on/off switch and fuse must have a disconnecting device such as a switch
or circuit breaker conforming to local safety standards fitted to the final installation. It must be fitted in close proximity to
the instrument within easy reach of the operator and must be marked clearly as the disconnection device for the
instrument.
• Remove all power from supply, relay and any powered control circuits and high common mode voltages before accessing
or making any connections.
• Use cable appropriate for the load currents. The terminals accept cables up to 14AWG (2.5mm
• 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 be
impaired.
• 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.
• 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 a
module, note its position.
• If wall- or pipe-mounting to NEMA 4X hosedown standard is required, suitable cable glands must be used to prevent
water ingress.
Cleaning.
• The complete recorder can be hosed down if it has been installed to IP66/NEMA 4X standards i.e. cable glands are
correctly fitted and all unused cable entry holes are blanked off. Warm water and a mild detergent can be used.
5
...and open door
3
6
Push to
1
release handle
Pull handle
2
to release
door...
4
Loosen
captive screw
Swing chart plate forward
Fig. 4.1 Removing Terminal Block Assembly
).
2
6
Unplug
Module
Release
7
Clip
8
Remove Terminal
Block Assembly
(NOT the