Manual

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
conguration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congurationswitches.
figure 2: 110Vac or 220Vac serVo Pro terminals
reVision f
2.1 terminal connections
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 BAND
HEATER
10987654321
S10
S9
S8
S7
S6
S5
S4
S3
S2
S1
ON
FB POT
CONTROL BOX TORQUE LIMIT
HIGH
VOLTAGE
SERVO
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
HEATER
10987654321
S10
S9
S8
S7
S6
S5
S4
S3
S2
S1
ON
FB POT
CONTROL BOX TORQUE LIMIT
HIGH
VOLTAGE
SERVO
PRO
FEEDBACK
POT
CONTROL
STATION
HANDWHEEL
TORQUE
SWITCHES
TRAVEL
LIMIT
INPUT
SIGNAL
OUTPUT
SIGNAL
MOTOR
WIRING
INPUT
POWER
figure 2: 24Vac serVo Pro terminals
reVision f