Insulation Barrier
Connector
ZERO
SPAN
Open Control Button (SW7)
Close Control Button (SW8)
4
3
2
1
OFF
ON
1
2
3
4
ON
OFF
Status Indicator
Deadband (SW4)
5
4
3
2
1
0
9
8
7 6
5
4
3
2
1
0
9
8
7 6
5
4
3
2
1
0
9
8
7 6
Manual Operation
Setting SW5
Station No. x 10 (SW1)
Station No. x 1 (SW2)
Baud Rate (SW3)
Restart
Limit. Timer
Comm. Error
Operation
SW6
Figure 4. Component identification, Control PCB
Note 1: Applying excessive torque on potentiometers and switches may destroy the stoppers of these adjustments. Turn them gen-
tly and stop immediately where the controls hit the stopper.
4. OUTPUT SPAN ADJUSTABILITY
The servo-control circuit compares and amplifies “Input as
Target” (position setpoint) signal and the feedback signal
from the potentiometer, and drives the motor to such direc-
tion to minimize difference of the two signals.
25
50
75
100
0
INPUT [%]
Adjustable SPAN at ZERO CCW (counterclockwise)
Adjustable SPAN at ZERO CW (clockwise)
0
25
50
75
100
OUTPUT STEM POSITION [%]
SPAN CCW
ZERO CW
ZERO CCW
SPAN CW
Adjustable SPAN
Adjustable ZERO
The Span, with the Zero turned fully counterclockwise, is
adjustable from 50% to 100%. With the Zero turned gradu-
ally clockwise, the Span’s adjustable range become nar-
rower, down to 62.5 – 100%. The Span is adjustable to 50
– 100% of the remaining total stroke after the Zero adjust-
ment.
Figure 5. I/O characteristics (adjustable range)
L
Maximum Stroke
Minimum Stroke
Yoke Surface
Figure 6. Definition of the minimum and maximum strokes
Table 1. Available Stroke Range for Each Model
MODEL
L
MIN. STROKE
MAX. STROKE
MSP4C-1
29*
5
10
MSP4C-2
34*
8
15
MSP5C-1
40
5
10
MSP5C-3
50
10
20
MSP6C-3
58
10
20
MSP6C-4
78
20
40
*Add 3.5 mm for stem button type.
MSP4C / MSP5C / MSP6C
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-4862 Rev.1 P. 4 / 9
