Norgren P74S Series - Manual (Page 4)

N/AL.8.1.PXS.04 06/05
Warning
These products are intended for use in industrial compressed air
systems only. Do not use these products where pressures and
temperatures can exceed those listed under ‘Technical Data’.
Before using these products with fluids other than those specified, for
non-industrial applications, life-support systems, or other applications not
within published specifications, consult NORGREN.
Through misuse, age, or malfunction, components used in fluid
power systems can fail in various modes. The system designer is warned
to consider the failure modes of all component parts used in fluid power
systems and to provide adequate safeguards to prevent personal injury or
damage to equipment in the event of such failure.
System designers must provide a warning to end users in the
system instructional manual if protection against a failure mode
cannot be adequately provided.
System designers and end users are cautioned to review specific
warnings found in instruction sheets packed and shipped with these
products.
Water vapor will pass through these units and will condense into
liquid if air temperature drops in the downstream system. Install an air
dryer if water condensation could have a detrimental effect on the
application.
P64S, P74S
Our policy is one of continuous research and development.
We reserve the right to amend, without notice, the specifications given in this document.
Pilz relay
To assist in compliance with the Machinery Directive 89/392/EEC a Pilz
circuit should be used. This requires 2 units.
O.P. 1
O.P. 2
black black
brown blue
green/yellow
Zb
Start Pilz relay
E-stop
Soft Start
Monitored dump valves
V1 V2
1
2
2 2
1
2
3
P P
3 1
3 2
1
3 2
2
0V
24V
0V
24V
V1 V2 V3 V3
2
12
10
1
3
2
12
10
1
3
Switch Details
All electrical connections to be made by a competent licensed electrician
Break - before – Make contact
1 Normally Open / 1 Normally Closed
blue
black
E-stop
Start Pliz relay
brown
green/yellow
Soft Start
Monitored dump valves
black