Description
Technical Parameters
| Parameter | Specification |
|---|---|
| Outputs | 32 digital, solid‑state (MOSFET) |
| Output Voltage | 24V DC / 125V DC (selectable) |
| Output Current | 0.5A per channel (continuous), 1.0A peak |
| Inputs | None (output‑only) |
| Response Time | <5ms |
| Isolation | 1500V RMS (field‑to‑backplane) |
| Diagnostics | Short‑circuit detection, overcurrent protection, watchdog |
| Power | +5V @ 1.2A; +15V @ 0.5A (VME backplane) |
| Firmware | Factory‑programmed (not field‑upgradeable) |
| Conformal Coating | No |
| MTBF | >190,000 hours |
Advantages
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Highest Density – 32 outputs in a single slot (double HPIB capacity).
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Dual Voltage Support – 24V or 125V DC field power.
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Short‑Circuit Protection – Self‑resetting per‑channel protection.
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Watchdog Failsafe – Configurable safe state on communication loss.
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Hot‑Swap Capable – IEEE 1101.11 compliant.
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Diagnostics – Overcurrent detection and status monitoring.
Applications
| Industry | Use |
|---|---|
| Gas Turbines | Fuel valve control, starter motor control, IGV actuation, sequencing |
| Steam Turbines | Governor valve control, extraction control, solenoid actuation |
| Combined Cycle | HRSG damper control, pump start/stop |
| Oil & Gas | Compressor anti‑surge valve control, shutdown actuators |
Comparison
| Feature | DS3800HPID | DS3800HPIB | DS3800HPBD | DS3800HMPK |
|---|---|---|---|---|
| Inputs | None | None | 32 digital | 8 analog |
| Outputs | 32 digital | 16 digital | 16 digital | None |
| Voltage | 24/125V selectable | 24/125V selectable | 24/125V selectable | N/A |
| Type | Digital output | Digital output | Digital I/O | Analog input |
| Best For | Large‑scale actuation | High‑current actuation | Combined control | Temperature |
Selection
| Scenario | Choice |
|---|---|
| Large‑scale output‑only actuation | DS3800HPID – 32 outputs, no inputs. |
| Standard output actuation | Use DS3800HPIB (16 outputs). |
| Inputs + outputs required | Use DS3800HPBC (16 in / 8 out) or DS3800HPBD (32 in / 16 out). |
| Digital control (24V only) | Use DS3800HP1B (combined I/O). |
| Temperature monitoring | Use DS3800HMPK series. |
| TMR | Three identical HPID modules. |
| Non‑GE | Do not use – VME only. |
Critical Precautions
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Authenticate – Check GE hologram, serial number.
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ESD – Wear grounded wrist strap.
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Backplane – Verify +5V, +15V, -15V before insertion.
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Voltage Selection – Verify field voltage (24V or 125V) matches module configuration.
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Wiring – Use shielded cable; maintain separation from AC power.
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Load Check – Outputs rated 0.5A continuous; 1.0A peak. Verify connected load.
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Power Budget – Higher power consumption (1.2A on +5V) – verify backplane capacity.
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External Fusing – GE recommends external fuses on each output for protection.
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Torque – 0.5‑0.6 Nm.
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Temp – Keep rack <70°C.
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Firmware – Factory‑programmed; cannot be field‑updated.
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Sourcing – Obsolete; source refurbished from certified GE repair centers.
Final Summary
The General Electric DS3800HPID is a high‑density digital output module for GE Speedtronic systems, offering 32 isolated outputs with selectable 24V or 125V DC field power. It is ideal for large‑scale actuation of solenoids, valves, contactors, and alarm devices where inputs are handled by separate modules. For standard output density, use DS3800HPIB. For combined I/O applications, use DS3800HPBC or DS3800HPBD. For temperature monitoring, choose DS3800HMPK. Source from certified repair centers.
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