33 12 16.26 - 001-A - Butterfly Valves - Garney Construction

Fd
All positioning commands are subject to
a deadband tolerance.
The deadband sets the expected
positioning accuracy of the actuator
and is dependent on various factors
including, actuator output speed,
number of turns and valve torque. If
the deadband is set too low the valve
may ‘‘hunt’’ around the set point.
Use the + or - key to display the
required setting:
[00] to [99] – 0% to 9.9% of valve
stroke.
PRESS THE
Bus System Deadband
Adjustment
2.5% Deadband
KEY.
The displayed option will flash
indicating that it has been set.
Press the ❖ key to display [Ft].
Ft
MIT sets the minimum time between
successive position commands being
actioned. It is used in situations to
reduce the number of starts per hour
and to smooth out fluctuations if
continuous positioning is implemented.
Setting the longest possible time while
maintaining acceptable control will
maximise the life of the motorised
valve.
Use the + or - key to display the
required setting:
[02] to [99] – 2 to 99 seconds.
PRESS THE
Bus System
Motion Inhibit Time (MIT)
5 Second MIT
KEY.
The displayed option will flash
indicating that it has been set.
Press the ❖ key to display [FA].
FA Modbus, Profibus &
DeviceNet
Action on Loss of Signal
Modbus, Profibus & DeviceNet modules
can be set to respond on loss of host
communication by positioning the
valve. Modbus checks for a loss of
general highway communications
whereas Profibus checks for a loss of
communications addressed specifically
to itself.
The default setting is off [OF] and the
default timeout is 255 sec.
Use the + or - key to display the
required setting:
[On] Failsafe determined by setting [FF]
[OF] No failsafe action
PRESS THE
Failsafe Action Enabled
KEY.
The displayed option will flash
indicating that it has been set.
Press the ❖ key to display [FF].
59
FF Modbus, Profibus
& DeviceNet
Failsafe Action
Modbus, Profibus & DeviceNet failsafe
action when [FA] is enabled.
Use the + or - key to display the
required setting:
[Lo] Close valve
[SP] Stay put
[HI] Open valve
PRESS THE
Failsafe Close
KEY.
The displayed option will flash
indicating that it has been set.