Bray 70 Series SERVO PRO - Manual (Page 6)

4
BRAY Series 70 Servo Pro
Operation and Maintenance Manual
the actuator to change position, which will move the
associated control valve to modify the process variable.
The process controller continually calculates and
transmits the appropriate command signal to the Servo
Pro to maintain the process at the desired set point.
The command signal to the Servo Pro can be various
DC current, voltage or resistance ranges selected by
configuration switches.
The Servo Pro simultaneously provides a feedback
output signal representing the current actuator position.
The feedback signal can be various DC current or
voltage ranges selected by configuration switches.
f
igure
2: 110Vac
or
220Vac s
erVo
P
ro
t
erminals
r
eVision
f
2.1 t
erminal
c
onnections
CALIBRATE
+5 VDC
+5 VDC
INPUT (-)
INPUT (+)
OUTPUT (-)
MOTOR
CLOSE
MOTOR
OPEN
NEUTRAL
NEUTRAL
LINE
POWER
OUTPUT (+)
FUSE
COMMON
COMMON
HANDWHEEL
STATUS
OPEN
CLOSE
COMMON
COMMON
CLOSE LIMIT
OPEN LIMIT
COMMON
OPEN
CLOSE
OPEN SPEED CLOSE SPEED
DEAD B
AND
HEA
TER
10 9 8 7 6 5 4 3 2 1
S10 S9 S8 S7 S6 S5 S4 S3 S2 S1
ON
FB PO
T
CONTROL BO
X
TORQUE LIMIT
HIGH
VOLTAGE
SER
VO
PRO
FEEDBACK
POT
CONTROL
STATION
HANDWHEEL
TORQUE
SWITCHES
TRAVEL
LIMIT
INPUT
SIGNAL
OUTPUT
SIGNAL
MOTOR
WIRING
INPUT
POWER
CALIBRATE
+5 VDC
+5 VDC
INPUT (-)
INPUT (+)
OUTPUT (-)
MOTOR
CLOSE
MOTOR
OPEN
NEUTRAL
LINE
POWER
OUTPUT (+)
FUSE
COMMON
COMMON
HANDWHEEL
STATUS
OPEN
CLOSE
COMMON
COMMON
CLOSE LIMIT
OPEN LIMIT
COMMON
OPEN
CLOSE
OPEN SPEED CLOSE SPEED
DEAD BAND
HEA
TER
10 9 8 7 6 5 4 3 2 1
S10 S9 S8 S7 S6 S5 S4 S3 S2 S1
ON
FB POT
CONTROL BOX
TORQUE LIMIT
HIGH
VOLTAGE
SER
VO
PRO
FEEDBACK
POT
CONTROL
STATION
HANDWHEEL
TORQUE
SWITCHES
TRAVEL
LIMIT
INPUT
SIGNAL
OUTPUT
SIGNAL
MOTOR
WIRING
INPUT
POWER
f
igure
2: 24Vac s
erVo
P
ro
t
erminals
r
eVision
f