This power supply module provides regulated DC power for GE Mark VIe turbine control systems. It converts 125 or 250 VDC input into stable 5 and 24 VDC outputs. Therefore, it supplies all connected I/O modules and the CPU with clean operating voltage.
Physical and Input Specifications
The GE IS200DSPXH2B IS200DSPXH2BE measures 26.0 cm in length and 18.5 cm in width. Moreover, its module weight equals approximately 1.25 kg for rack mounting. A single 4-pin terminal block accepts DC input from an external source. Additionally, this module delivers power through the VME backplane to all slots.
| Parameter | Specification |
|---|---|
| Brand | General Electric (GE) |
| Full Model | IS200DSPXH2B IS200DSPXH2BE |
| Category | Power Supply Module |
| Dimensions (L x W x H) | 26.0 cm x 18.5 cm x 5.5 cm (10.24″ x 7.28″ x 2.17″) |
| Module Weight | 1.25 kg (2.76 lbs) |
| Input Voltage Range (DC) | 88 to 300 VDC (Nominal 125/250 VDC) |
| Input Current (125 VDC) | 1.5 A (Maximum) |
| Input Current (250 VDC) | 0.8 A (Maximum) |
| Inrush Current | 10 A Peak (Cold Start at 125 VDC) |
| Output Voltage 1 | +5 VDC (Regulated) |
| Output Current 1 | 12.0 A (Continuous) |
| Output Voltage 2 | +24 VDC (Regulated) |
| Output Current 2 | 4.0 A (Continuous) |
| Output Voltage 3 | +15 VDC (Regulated) |
| Output Current 3 | 2.0 A (Continuous) |
| Output Voltage 4 | -15 VDC (Regulated) |
| Output Current 4 | 1.0 A (Continuous) |
| Output Ripple (5 VDC) | < 50 mV Peak-to-Peak |
| Output Ripple (24 VDC) | < 100 mV Peak-to-Peak |
| Output Ripple (±15 VDC) | < 75 mV Peak-to-Peak |
| Output Accuracy (5 VDC) | ±2% (No Load to Full Load) |
| Output Accuracy (24 VDC) | ±3% (No Load to Full Load) |
| Hold-Up Time | 20 ms at Full Load (125 VDC Input) |
| Efficiency | > 82% (Typical at 125 VDC) |
| Overvoltage Protection | Yes (5 VDC: 5.8 V, 24 VDC: 28 V, ±15 VDC: ±17 V) |
| Overcurrent Protection | Yes (Automatic Foldback + Hiccup Mode) |
| Short Circuit Protection | Yes (Continuous Recovery) |
| Overtemperature Protection | Yes (Shutdown at 95°C Internal) |
| On-Board Components | 1 DC-DC Converter + 1 Bridge Rectifier + 6 Filter Capacitors + 2 PWM Controller ICs + 2 Optocouplers + 8 Protection Diodes + 1 Internal Fuse + 3 Voltage Regulators |
| Energy Storage | 2 x 1500 µF Electrolytic Capacitors (400V, Input) + 2 x 3300 µF (10V, 5V Output) + 1 x 1000 µF (35V, 24V Output) + 1 x 470 µF (25V, +15V) + 1 x 470 µF (25V, -15V) |
| Operating Temperature | -20°C to +65°C (-4°F to +149°F) |
| Storage Temperature | -40°C to +85°C (-40°F to 185°F) |
| Cooling | Forced Air (Two Onboard Fans) |
| Mounting Type | Mark VIe Rack (Leftmost Slot) |
| Status Indicators | 1 Green LED (5 VDC OK) + 1 Green LED (24 VDC OK) + 1 Green LED (±15 VDC OK) + 1 Red LED (Fault) + 2 Green LEDs (Fan Status) |
Energy Storage and Hold-Up Performance
The GE IS200DSPXH2B IS200DSPXH2BE stores significant energy using seven large electrolytic capacitors. Specifically, two input capacitors store energy from the DC line for 20 ms hold-up time. In addition, two output capacitors filter the 5 VDC supply for stable backplane power. Moreover, one capacitor filters the 24 VDC output for I/O modules. Furthermore, two capacitors filter the ±15 VDC supplies for analog circuits. Consequently, the system continues running through brief DC power interruptions reliably.
Multiple Output Voltages and Protection Features
This power supply generates four regulated output voltages for Mark VIe systems. For instance, the 5 VDC output powers digital logic circuits and microprocessors. In addition, the 24 VDC output supplies field I/O modules and relay coils. Moreover, the ±15 VDC outputs power analog input and output circuits. Furthermore, overvoltage protection shuts down any output exceeding safe limits. Thus, the GE IS200DSPXH2B IS200DSPXH2BE safeguards your entire Mark VIe system effectively.
Cooling and Thermal Management
Two onboard fans provide forced-air cooling for this power supply module. Specifically, the fans activate automatically when internal temperatures exceed 50°C. In addition, fan status LEDs indicate proper rotation and airflow. Moreover, overtemperature protection shuts down the module if cooling fails. Thus, this power supply operates reliably in warm turbine control cabinets.
Installation and Status Indication
Six LED indicators on the front panel provide operational status at a glance. First, a green 5V OK LED lights when the 5 VDC output is within specification. Second, a green 24V OK LED indicates proper 24 VDC output voltage. Third, a green ±15V OK LED shows both analog supplies are present. Fourth, two green Fan Status LEDs illuminate when each fan is operating normally. Finally, a red Fault LED illuminates during overcurrent or overtemperature events. Additionally, this module occupies the leftmost slot of the Mark VIe rack. Therefore, it powers all CPU and I/O modules through the backplane efficiently.
Details
| Weight | 0.1 kg |
|---|---|
| Dimensions | 25 × 108 × 127 mm |
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