Rockwell Automation 1000 Safety Lockout System - Manual (Page 13)

1 Publication 1000-UM001B-US-P - July 2000
Chapter
1
Installation Instructions
A. The SLS box enclosure has no environmental rating. Its purpose is to
prevent tampering with the safety system and allow viewing of the
components. The SLS box shall be mounted in a parent enclosure of
suitable environmental rating with sufficient space to allow free opening
of its door and convenient wiring of its connectors.
B. After installation the SLS system must be tested for proper operation
and certified as such by a SLS trained service technician, who then seals
the SLS box and the SLS switches. The engineer responsible for the
process or machine shall keep a service logbook of this and all future
servicing. Servicing is to be performed only by SLS qualified technicians.
C. SLS cable and cable installation specification
1. Cable must be installed so that it is protected from physical damage.
This may require conduit.
2. Cable must have a shield with a drain wire connected to ground at
the SLS box.
3. Cable insulated for 600V is recommended.
4. Cable shall have copper conductors only.
5. Maximum SLS switch circuit length (total length of wire run):
#14 AWG (2.5 mm
2
) = 4600 ft (1403 m)
#16 AWG (1.5 mm
2
) = 2600 ft (793 m)
#18 AWG (0.75 mm
2
) = 1300 ft (397 m)
6. Individual conductors within a cable shall be color coded or
otherwise clearly marked.
Suggested source and type of cable:
For SLS switches — Alpha wire Xtra-Guard 2 Part #25450/9 for
#14 AWG 0.64" O.D., Part #25440/9 for #16 AWG 0.61" O.D.,
and Part #25430/9 for #18 AWG 0.55" O.D.
(SLS switch cable must not be run with power conductors.)
D. SLS box ground bus must be bonded to the system ground bus in the
main enclosure as follows:
1. For 85 A SLS box with Pilz relay (Cat. No. 1000-NXSLSV85) use
#8 AWG (10 mm
2
).
2. For 30 A SLS box with Pilz relay (Cat. No. 1000-NXSLSV30) use
#10 AWG (6 mm
2
).