Rockwell Automation 1771-QB Linear Pos. - Manual (Page 43)

Installing the Linear Positioning Module
Chapter 5
5Ć4
3. Set the current/voltage switch for each control loop as shown in
Figure 5.2.
Figure 5.2
Configuring the Analog Outputs
50044
ON
SLIDE
ON
ROCKER
ON
TOGGLE
TYPES OF SWITCHES
The range selection switches have no
effect when ± 10V is selected.
C2
C1
1 2
OPEN
1 2
1771ĆQB
Chassis
± 100mA
± 50mA
± 20mA
± 10V
LOOP 1 LOOP 2
C2
C1
1 2
OPEN
1 2
C2
C1
1 2
OPEN
1 2
C2
C1
1 2
OPEN
1 2
C2
C1
1 2
OPEN
1 2
C2
C1
1 2
OPEN
1 2
4. If you have selected a current output, set the current range switch to +100
mA, +50 mA, or +20 mA as shown in Figure 5.2. If your device requires a
range that falls between those provided, select the next higher range and
reduce the range using the analog range word in the parameter block.
ATTENTION: If your switch setting does not provide enough
current, the servo valve may not operate to its full capability. On the
other hand, excessive currents may damage the servo valve.