GE IS220PSVOH1B Servo Control I/O Pack
Description:
IS220PSVOH1B， the Servo Control (PSVO) I/O pack provides the electrical interface between one or two I/O Ethernet networks and a TSVC servo terminal board. The I/O pack containscommon processor board and an application board specific to the servo function. ThePSVO uses the adjacent WSVO servo driver module to handle two servo valve positionloops, with a selection of five servo valve output currents from 10-120 mA dc. The I/O pack supplies LVDT excitation, and accepts eight LVDT feedbacks and two pulse rateinputs from fuel flow meters. Input to the I/O pack is through dual RJ-45 Ethernet connectors, and 28 V dc power issupplied from the terminal board. Output is through a DC-62 pin connector thatconnects directly with the associated terminal board connector. Visual diagnostics are provided through indicator LEDs.
Compared with IS220PSVOH1A, IS220PSVOH1B not only contains a BPPC processor, but also requires firmware V04.09 or later.
Specifications：
Number of inputs： Eight LVDTwindings，Two pulse rate signals
Number of outputs： Two servo valve currents，Two excitation sources for LVDTs，Two excitation sources for pulse rate transducers
Power supply voltage：Nominal 28 V dc
LVDT accuracy：1% with 14-bit resolution
LVDT input filter：Low pass filter with 3 down breaks at 50 rad/sec ±15%
LVDT common mode rejection：CMR is 1 V, 60 dB at 50/60 Hz
LVDT excitation output：Frequency of 3.2 ±0.2 kHz，Voltage of 7.00 ±0.14 Vrms
Pulse rate accuracy：0.05% of speed value calculated from 2hz to 12khz with 16-bit resolution at 50 Hz frame rateNoise of acceleration measurement is less than ±50 Hz/sec for a 10,000 Hz signal being read at 10ms
Pulse rate input sensitivity：Required peak-peak (p-p) voltage rises as a function of frequency: 2 Hz requires 72 mV p-p，12 kHz requires 1486 mV p-p
Magnetic PR pickup signal：< 150 V p-p into 60 kΩ
Active PR Pickup Signal：5 to 27 V p-p into 60 kΩ
Servo valve output accuracy：2% with 12-bit resolution，Dither amplitude and frequency adjustable
Fault detection：Servo current out of limits or not responding，Regulator feedback signal out of limits，Servo suicided，Calibration voltage range fault，The LVDT excitation is out of range，The input signal varies from the voted value by more than the TMR differential limitFailed ID chip
Size：8.26 cm high x 4.19 cm wide x 12.1 cm deep (3.25 in x 1.65 in x 4.78 in
Technology：Surface-mount
Ambient rating for enclosure design：PSVOH1B is rated from -40 to 70ºC (-40 to 158 ºF)
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