User Guide

Technical Instructions Flowrite EA 599 Series SKB/C/D 62UA Electronic Valve Actuator Advanced Features
Document Number 155-717
July 11, 2011
Page 10 Siemens Industry, Inc.
• With normally-closed valves, "direct-acting" means that with a 0 Vdc signal input, the
valve is closed.
Start-Up,
continued
• With Normally-open valves, "direct-acting" means that with a 0 Vdc signal input, the valve
is open.
Selecting the
Direction of
Operation
0 %
Y
100 %
(10V)
(10V)
100 %
Y
0%
100 %
Y
Stroke
0 %
EA1070R1
Reverse-Acting
Direct
Direct-Acting Reverse-Acting
Input: 0 to 10 Vdc Input 10 to 0 Vdc 0 Vdc 10 Vdc
4 to 20 mA 20 to 4 mA 4 mA 20 mA
0 to 1000 ohm 1000 to 0 ohm 0 ohm 1000 ohm
Figure 14. Direction of Operation.
Sequence Control
or Stroke Limit
Control
Check the wiring for proper connections.
NOTE: The valve body assembly determines the complete assembly action.
Table 3. Table 4.
Setting the Stroke Limit Control Setting the Sequence Control
The rotary switches LO and UP can be
used to apply an upper and lower limit
to the stroke in increments of 3% up to
a maximum of 45%.
The rotary switches LO and UP can be
used to determine the starting point (Start)
or the operating range of a sequence
(Span).
100 %
y
UP
LO
0 to 45%
100 to 55%
EA1071R1
UP
LO
3 to 15V
0 to 15V
100 %
y
EA1072R1
Starting
Point for
Sequence
Control
Operating
Range of
Sequence
Control
Position
of
LO
Lower
Stroke
Limit
Position
of
UP
Upper
Stroke
Limit
Position
of
LO
Position
of
UP
0 0% 0 100% 0 0V 0 10V
1 3% 1 97% 1 1V 1 10V*
2 6% 2 94% 2 2V 2 10V*
3 9% 3 91% 3 3V 3 3V*
4 12% 4 88% 4 4V 4 4V
5 15% 5 85% 5 5V 5 5V
6 18% 6 82% 6 6V 6 6V
7 21% 7 79% 7 7V 7 7V
8 24% 8 76% 8 8V 8 8V
9 27% 9 73% 9 9V 9 9V
A 30% A 70% A 10V A 10V
B 33% B 67% B 11V B 11V
C 36% C 64% C 12V C 12V
D 39% D 61% D 13V D 13V
E 42% E 58% E 14V E 14V
F 45% F 55% F 15V F 15V
*The smallest adjustment is 3 Vdc; Control with 0 to
3 Vdc is possible only via Y.