Honeywell MS 10 Series Manual page 6

MSXX10, MSXX20 SERIES
Select Actuator Control Signal
MS41XX, MS71XX, MS75XX, MS81XX
These actuators are available in two control types:
— Standard: includes mode selection dial to select the
desired input signal.
— Enhanced: includes different mode selection dial to
select the desired input signal. Also includes dials for
adjusting the input signal zero and span.
NOTE: Selections are made using a dial that appears on
both the front and back of the actuator (see Fig. 4).
For available options, see Table 5.
To select the control signal simply turn the mode selection
dial to the desired control signal (as indicated on the device
label).
LOCKING PIN
1
SPAN ZERO
Span Start
2V 0V
32V 10V
32007163-011 Rev. C
1 SPAN AND ZERO EXIST ONLY
ON MODELS MS75XXE,H.
Fig. 4. Dials for control signal and zero/span.
Mode Options Standard Enhanced
Floating: forward a
X
Floating: reverse b
X
Modulating: 0-10 Vdc X c
Modulating: 10-0 Vdc X
c
Modulating: 2-10 Vdc X
c
Modulating: 10-2 Vdc X c
Modulating: forward
Modulating: reverse
Service
Auto-adapt
a
Feedback: MS75XXA,H and U.S. S... models are 2-10 Vdc, MS75XXB,E and European S... models are 0-10 Vdc.
b
Feedback: MS75XXA,H and U.S. S... models are 10-2 Vdc, MS75XXB,E and European S... models are 10-0 Vdc.
c
When operating in Modulating mode, the feedback signal matches the control signal.
Non-Standard Stroke
Mechanical Stroke Limit Reduction
For applications requiring a span less than 95 degrees, a
simple adjustment can be made. When the rotational
mounting of the shaft coupling is changed, the actuator
63-2607—26
MODE SELECT
1
Modulating, Forward
Modulating, Reverse
Floating, Forward
Floating, Reverse
Service
Auto Adapt
M20954A
Table 5. Actuator Control Signal Selections.
a Series 60 control. Power to terminal 4 drives toward spring return position.
X
b Series 60 control. Power to terminal 3 drives toward spring return position.
X
Series 70 control. 0 Vdc signal drives toward spring return position.
Series 70 control. 10 Vdc signal drives toward spring return position.
Series 70 control. 2 Vdc signal drives toward spring return position.
Series 70 control. 10 Vdc signal drives toward spring return position.
X Voltage input with adjustable zero and span. Minimum signal drives toward
spring return position.
X Voltage input with adjustable zero and span. Maximum signal drives toward
spring return position.
X Actuator hub stops in place and ignores control signal changes.
X For setup only. Rescales to allow full input signal over mechanically limited
stroke.
MS31XX
These actuators are available with Sylk address selection
pot and Range/Direct control selector pot. The Range pot
has 3 ranges that cause the actuator to be direct acting
and 3 ranges to cause the actuator to be reverse acting.
NOTE: When Direct range pot called out, a 0 to 100%
command would associate 0% with full spring
return and 100% with position farthest from
spring return. When Reverse range pot called out,
a 0 to 100% command would associate 100%
with full spring return and 0% farthest from spring
return.
There are 15 effective Sylk addresses that you can choose
from. For example, to select Sylk address 11 move the
range pot to Direct control selection and Sylk address pot
to G.
LOCKING PIN
RANGE/DIRECTION
CONTROL SELECTOR
Fig. 5. Dials for control signal.
Details
drives less than the full 95 degrees stroke.
The stroke is adjustable in 5 degree increments. Once
adjusted, the actuator drives until the shaft coupling
reaches the mechanical stop (part of the housing). The
stop causes the motor to discontinue driving and the shaft
coupling drives no farther. When the actuator returns, it
stops at the fail-safe position.
6
SYLK ADDRESS
SELECTION
M34296A