Data sheet
Actuator for modulating control AME 55 QM
© Danfoss | 2016.09 | 3
VD.CV.A2.02
DIP switch setting
The actuator has a function selection DIP switch
under the removable cover. In particular, if SW6
is set to ON, the actuator will perform as 3-point
actuator.
The switch provides the following functions:
•
SW1: U/I - Input signal type selector:
If set to OFF position, voltage input is selected. If
set to ON position, current input is selected.
•
SW2: 0/2 - Input signal range selector:
If set to OFF position, the input signal is in the
range from 2 V to 10 V (voltage input)
or from 4 mA to 20 mA (current input). If set to
ON position, the input signal is in the range from
0 V to 10 V (voltage input) or from 0 mA to 20 mA
(current input).
•
SW3: D/I - Direct or inverse acting selector:
If set to OFF position, the actuator is direct acting
(stem contracts as voltage increases). If actuator
is set to ON position the actuator is inverse
acting (stem extracts as voltage increases).
•
SW4: —/Seq - Normal or sequential mode
selector:
If set to OFF position, the actuator is working
in range 0(2)..10V or 0(4)..20mA. If set to ON
position, the actuator is working in sequential
range; 0(2)..5 (6)V or (0(4)..10 (12)mA) or (5(6)..10V)
or (10(12)..20mA).
•
SW5: 0..5V/5...10V - Input signal range in
sequential mode:
If set to OFF position, the actuator is working in
sequential range 0(2)..5 (6)V or 0(4)..10 (12)mA.
If set to ON position, the actuator is working in
sequential range; 5(6)..10V or 10(12)..20mA.
•
SW6: Prop./3-pnt - Modulating or 3-point mode
selector:
If set to OFF position, the actuator is working
normally according to control signal. If set to
ON position, the actuator is working as 3-point
actuator.
For this operation please refer to page 2
(wiring 3-point control).
When DIP switch SW6 is set to ON than all
functions from other DIP switch become inactive.
•
SW7: LOG/LIN - Equal percentage or linear flow
through valve selector:
If set to OFF position, the flow through valve
is equal percentage. If set to ON position, the
flow through valve is linear according to control
signal.
•
SW8: 100% K
VS
/Reduced K
VS
:
To be set to OFF position (no sense in combination
with AB-QM).
•
SW9: Reset:
Changing this switch position will cause the
actuator to go through a self stroking cycle.
Complete the mechanical and electrical
installation and perform the necessary checks
and tests:
• Isolate control medium. (e.g. self stroking
in a steam application without suitable
mechanical isolation could cause a hazard).
• Apply the power. Note that the actuator will
now perform the self stroking function.
• Apply the appropriate control signal and
check the valve stem direction is correct for
the application.
• Ensure that the actuator drives the valve over
its full stroke, by applying the appropriate
control signal. This action will set the valve
stroke length.
The unit is now fully commissioned.
Commissioning
Commissioning / testing feature
The actuator can be driven to the fully open or
closed positions (depending on valve type) by
connecting SN to terminals 1 or 3.
