Emerson FieldQ Series Product Data Sheet page 25

Product data sheet
1.604.10 Rev. 0 Page 8 of 9
October 2017
Control Module Options
QC41, QC42 and QC43
Local Manual Control
Description
For commissioning, emergency or maintenance purposes,
the FieldQ can be supplied with one or two Manual Control
options. These can operate the pilot valve(s) inside the
module and as such operate the actuator, when there is air
pressure available, but no control signal or power supply.
Notes:
- One Local Manual Control is required for normal operation
of Double acting or Spring return actuators.
- For Double acting actuator with a Fail-in-last position
function, a second Local Manual Control can be mounted.
- These options can be ordered together with the Control
Module or as a kit to be mounted later.
- For option ordering codes, see page 7
Speed Control
Lock
45°
Unlock
On
Off
Local Manual Control option
FieldQ
Copyright © Emerson. The information in this document is subject to change without notice. Updated data sheets can be obtained from our website
www.emerson.com/fieldq or from your Emerson Automation Solutions - Actuation Technologies Center:
America's: +1 281 477 4100 Europe: +36 22 53 0950 Asia/Pacific: +65 67 77 8211
Description
The FieldQ can be supplied with a Speed Control option. One
throttle is required for Spring Return actuators and up to two
for Double Acting actuators.
The speed control throttle controls the air flow in and out of
an air chamber and as such limits the speed of the "Opening"
and "Closing" stroke simultaneously. This throttle consists
of :
1. Nut cover
2. Main throttle with set screw.
Notes:
- For Spring Return actuators with one speed control
throttle, it is not possible to set both the stroke cycle
times to an equal time.
- Four Double Acting actuators it is possible to mount two
speed control throttles.
- The actual stroke cycle times depend on the actual load
on the actuator during the different strokes.
Location for 2nd
Local Manual Control
Default location of
Local Manual Control
Speed control options
FieldQ
Spring Return:
Top entry only.
Double Acting:
Bottom and/or top entries.
1 2