Troubleshooting
The IQT range of actuators is the
world’s first that can be commissioned
and interrogated without removing
electrical covers. Help Screen
diagnostics enable fast and complete
fault finding to be carried out.
With power off, the actuator
display is not backlit. Position
indicator lamp not illuminated.
With mains power on, the actuator’s
display should be backlit
(refer to
Section 3.3 page 4 – The Actuator
Display)
.
Check that 3 phase supply is available
and is of the correct voltage as stated
on the actuator nameplate. Measure
voltage phase to phase across terminals
1, 2 and 3 of the actuator terminal
bung.
With power Off, the actuator does
not display position.
With mains power off the actuator
battery supports position indication
liquid crystal display only.
(Refer to Section 3.3 page 4 – The
Actuator Display)
.
If the display is blank the actuator
battery must be replaced and the limits
of travel reset .
With the actuator powered up and
Local or Stop selected, eight Help
Screens can be accessed using the
Setting Tool
(refer to Fig. 9.1 page 26
for their location)
.
With Remote selected press the
Q
key
on the Setting Tool twice. The Help
Screens will displayed.
Each screen uses bars to indicate the
status of a particular control or
indication function. Each bar reacts to
changes in the status of its actuator
function by turning ‘‘on’’ or ‘‘off’’.
For troubleshooting, access the
following Help Screens and refer to
text:
H1
– Factors inhibiting electrical
operation.
H2
– Monitor battery level and ESD
control input.
H3
– Monitor the position limit and
actuator power supply status.
H4
– Monitor remote control inputs to
the actuator.
H5
– Monitor remote interlocks local
control inputs and motor
thermostats.
H6
– Monitor torque switch status and
IR Setting Tool communication for
vandal proof applications.
H7
– Monitor travel limits, centre
column and position limit status.
H8
– Monitor the actuator’s position-
sensing devices.
H9
– Rotork use only.
Help screen bars shown
are undefined and may be ON, OFF or
flashing.
64
Help Screens
10.1
10
Maintenance, Monitoring
and Troubleshooting cont.
