Chapter 2: commissioning box and switch, Chapter 2, Commissioning box and switch – Rockwell Automation 1000 Safety Lockout System User Manual
Page 15: Chapter
1
Publication 1000-UM001B-US-P - July 2000
Chapter
2
Commissioning Box and Switch
This procedure is to be followed at first time startup and any subsequent SLS
service.
A. Inspection
1. Visually inspect enclosure and components for damage that may
have occurred in installation or shipment. Look for loose wires or
damaged components.
2. For first time installation, remove adhesive protective paper cover
from SLS box window.
3. Check incoming and outgoing three phase power lines for proper
selection and sizing. Select per NEC article 430 part B and size per
NEC table 310-16, 75
°
C column. Note that the preferred wire,
MTW, is rated 90
°
C, but it must be sized per the 75
°
C column.
4. Check incoming and outgoing lines along with associated line voltage
control wires that attach to the isolation contactor for proper torque.
Refer to wiring diagram for values. Also check that the lugs do not
crimp down on the wire insulation.
5. Check to see that the proper class J time delay fuse is installed ahead
of the SLS box. Refer to wiring diagram notes and see
item H
”.
6. Check to see that the proper size grounding conductor has been
installed between the ground bus in the main enclosure and the
ground bus in the SLS box (refer to
item D
under “
”). Refer to NEC Table 250-66 for sizing.
7. Verify that the SLS switches are connected to the SLS box and that
unneeded SLS switches are jumpered out in the Harting connectors
as per
item E
”.
8. Inspect SLS cable installation for protection against damage. Refer to
item C
”.
9. If required, check to see that white phenolic nameplate on the SLS
switch cover is engraved as specified. Also check to see that screws
that secure this nameplate to cover are resealed on the inside of cover
when nameplate is replaced. This is to ensure NEMA Type 4 (IP65)
watertight construction.
10.Verify that the control transformer primary and secondary is
connected per the system voltage per note #4 on wiring diagram
Y-155798. Refer to
.