MSP4 / MSP5 / MSP6
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-4854 Rev.15 P. 4 / 8
OUTPUT STEM POSITION ADJUSTABILITY
The control PCB compares and amplifies input signal (set-
point) and position feedback signal from the potentiometer,
and drives the motor to such a direction that the difference
of the two signals is minimized.
0
25
50
75
100
25
50
75
100
0
INPUT SIGNAL (%)
STEM POSITION (%)
Span Counterclockwise
Zero Clockwise
Zero Counterclockwise
Span Clockwise
Adjustable Zero Range
Adjustable Span Range
Figure 4. I/O Characteristics (Adjustable Range)
Maximum Stroke
Minimum Stroke
L
Yoke Surface
<Reference
position>
Figure 5. Minimum & Maximum Stroke
Table 1. Available Stroke Range for Each Model
MODEL
L
MIN. STROKE
MAX. STROKE
MSP4-1
29
5
10
MSP4-2
34
8
15
MSP5-1
40
5
10
MSP5-3
50
10
20
MSP6-3
58
10
20
MSP6-4
78
20
40
MANUAL OPERATION FUNCTION
(for MSP4 & MSP5 with AC power supply)
1) Be sure to turn OFF the power voltage.
Operation with power voltage being applied may result
in electrical shock or system breakdown.
2) Remove the screw cap on the top surface of the cover us-
ing a 22- mm wrench, etc.
3) Insert the attached hexagon key wrench in the manual
drive shaft as shown in the figure below.
4) The wrench turning direction and the stem operation
direction when seen from above differ according to the
model as shown in the table below.
MODEL
NO. OF TURNS
/OPERATION DISTANCE
[turns/mm]
TURNING DIRECTION
/ OPERATION DIRECTION
MSP4-x3
MSP5-x3
27 / mm
CCW
/ GO DOWN
MSP4-x4
MSP5-x4
54 / mm
CCW
/ GO UP
MSP4-x7
MSP5-x7
112 / mm
CCW
/ GO DOWN
5) Tighten the cap on the cover with a torque of 4 to 6 N·m.
Tightening with an excessive torque may damage the
screw thread of the cap.
Cap
Hexagon key wrench
O ring
Cover
Drive shaft
Figure 6. Manual Drive Shaft
Note: The manual operation function is not available for 24V
DC power model.
