Bray 6A series User Manual

All information herein is proprietary and confidential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc.
The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their
application.
Series 6A Installation, Operation & Maintenance – Field Connections
6A O & M : 8
Connecting Pneumatic Supply Lines
Refer to the Technical Data portion of this manual for specifi-
cations regarding air quality.
The S6A is equipped with three pneumatic connections, Y1,
Y2 and PZ. PZ is for the pneumatic supply and Y1 and Y2 are
used to supply the pneumatic actuator. The S6A can also be
equipped with a pressure gauge block for monitoring supply
and actuating pressure and a filter to ensure that the S6A is
receiving clean air.
Proceed as follows to make the pneumatic connections:
Refer to Figure 2.
Figure 2.
- Pneumatic connection on the standard controller
Y1
Y2
PZ
E
1. If required, connect the pressure gauge block for supply
air and actuating pressure.
2. Connect supply air to PZ.
Connection using female thread G1/4 DIN 45141
or 1/4" NPT:
• PZ supply air 20psi to 102psi (1.4 to 7 bar)
• Y1: actuating pressure for single and double-acting
actuators
• Y2: actuating pressure for double-acting actuators
• E: exhaust air outlet; remove the attenuator if
required.
For double-acting actuators, connect actuating pres-
sures Y1 or Y2 depending on the desired safety
position. The three pneumatic connections will go to
the following safety position in case of electrical auxil-
iary power supply failure:
• Y1: single-acting, depressurized
• Y1: double-acting, max. actuating pressure/supply
air pressure.
• Y2: double-acting, depressurized
Note: Besides continuous air consumption, the positioner
may try to compensate the position deviation due to leak-
age. This will lead to premature wear in the entire control
unit. To prevent this ensure that all pneumatic connections
are properly sealed and perform regular maintenance on
their fittings.

Bray 6A series Specifications

General

Brand	Bray
Model	6A series
Category	Valve Positioners
Language	English