rotork IQT User Manual

34
AA
Actuators are delivered with the
interlock facility disabled [OF] Disabled .
Refer to the actuator wiring diagram
or PUB002-002 for interlock control
circuits.
To enable remote external interlocks
press the
+
or
-
key.
The display will change to [O
n] Enabled .
PRESS THE KEY.
The displayed option will flash (stored)
indicating that it has been set.
Note: If interlocking is required in only
one direction, it will be necessary to
connect a link between the actuator
terminals associated with the other
direction. Refer to wiring diagram.
The actuator can be set to carry out a
partial stroke test using a signal applied
to the open interlock input to initiate
a partial stroke test. Refer to wiring
diagram.
The default for partial stroke/interlocks
is [OF]
Disabled .
To enable partial stroke testing press
the
+
or
-
key.
The display will change to [PS]
Partial
Stroke
.
PRESS THE KEY.
The displayed option will flash (stored)
indicating that it has been set.
To access partial stroke test settings
PRESS THE m KEY.
Refer to Appendix A, page 84 for
instructions on partial stroke settings.
Where a high level of safety integrity
is required, Conditional Control can
be configured. In this mode two
discreet signals are required for remote
operation. Remote control will be
conditional on both a control signal
(open or close) and the appropriate
interlock signal being applied
simultaneously. Failure of either or a
spurious signal will not cause operation.
Interlocks [A8] must be set [O
n]
Enabled . Interlock signals are not
required for local operation.
The default setting for conditional
control is [OF]
Disabled . To enable
conditional control press the
+
or
-
key.
The display will change to [On] Enabled .
PRESS THE KEY.
The displayed option will flash (stored)
indicating that it has been set.
The default setting for Torque Switch
Bypass is [OF]
Off , the torque switches
are not bypassed during the unseating
movement.
To bypass the torque switches during
the unseating movement press the
+
or
-
key.
The display will change to [O
n].
PRESS THE KEY.
The displayed option will flash (stored)
indicating that it has been set.
The torque switches will be bypassed
from closed limit to 5% open when
opening and from open limit to 95%
when closing. Bypassing the torque
switches makes torque in excess of
rated and up to actuator stall available
for unseating a ‘‘sticky’’ valve. Outside
these positions the torque setting will
revert to the values set for [tC]
Close
Torque
, see page 22 and [tO] Open
Torque
, page 23.
Interlocks Partial Stroke
A8 A8
Conditional Control
A9
Torque Switch Bypass
At
Interlocks
Disabled
Interlocks
Partial Stroke
Conditional
Control: Disabled
Torque Switch
Bypass: Off

rotork IQT Specifications

General

Quarter-turn	Yes
Housing Material	Aluminum alloy
Torque Range	10 Nm to 3000 Nm
Multi-turn	Yes
Linear	Yes
Ingress Protection	IP68
Communication Protocols	Modbus, Profibus, Foundation Fieldbus
Operating Temperature	+70°C
Local Controls	local pushbuttons
Control Modes	Modulating
Display	LCD
Type	Intelligent Electric Actuator