HSS03: Hydraulic Servo [FC55]


Specifications

Spec Description
S1Module bus address
S2Output device (see below)
S3LVDT select (see below)
S4LVDT error output action (see below)
S5
LVDT frequency select (khz)
0.0 = DC LVDT mode
S6Percent position demand (percent)
S7
LVDT null point mode
0 = do not stop calibration at null point
1 = stop at null for LVDT 1
2 = stop at null for LVDT 2
S8Calibration stroke time (seconds)
S9Calibration cycle count (1.0 - 8.0)
S10
Calibration type
0 = full calibration (0% and 100%)
1 = 0% calibration
2 = 100% calibration
S11Calibrate mode enable: 0-1 transition = calibrate
S12Calibrate hold/go
S13Auto/hard manual mode
S14Spare boolean
S15Block output display units (see below)
S16Demodulator gain constant
S17Controller gain proportional constant
S18LVDT 1 differential voltage (0% actuator)
S19LVDT 1 differential voltage (100% actuator)
S20LVDT 2 differential voltage (0% actuator)
S21LVDT 2 differential voltage (100% actuator)
S22Contingency deadband (percent)
S23Spare real

Format for S2-S4

S2 Output Device

0Output 1 = active servo

Output 2 = unused

1Output 1 = unused

Output 2 = active servo

2Output 1 = active servo

Output 2 = redundant servo

3Output 1 = active servo

Output 2 = redundant servo (20% standby)

4Output 1 = active 4-20mA I/H converter
5Output 1 = active 20-160mA I/H converter

S3 LVDT Select

0Input 1 = LVDT

Input 2 = unused

1Input 1 = unused

Input 2 = LVDT

2Input 1 = LVDT 1

Input 2 = LVDT 2

3Input 1 = LVDT 2

Input 2 = LVDT 1

4Input 1 = LVDT I/H display

Input 2 = 4-20mA contingency error

S4 LVDT Error

0Valve closes to 0%:
  • servo mode = 0V
  • 4-20mA mode = 4mA
  • 20-160mA mode = 20mA
1Valve opens to 100%:
  • servo mode = max. V
  • 4-20mA mode = 20mA
  • 20-160mA mode = 160mA
2Valve unchanged (I/H mode)
3Valve moves to null (I/H mode)

Outputs

Block Type Description
N Real Actuator position (percent or volts)
N+1 Real IMHSS03 D/A converter (%/span)
N+2 Real Servo 1 coil 1 current
N+3 Real Servo 1 coil 2 current
N+4 Real Servo 2 coil 1 current
N+5 Real Servo 2 coil 2 current
N+6 Real Slave status
N+7 Real LVDT status
N+8 Bit Good/bad hardware status
N+9 Bit Good/bad communication and watchdog timer status