Description
Key Technical Specifications
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Model Number: DS200FPSAG1ABB
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Manufacturer: General Electric
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Input Voltage: 115 Vac ±10 %, 47–63 Hz (from control transformer)
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Outputs: 24 Vdc @ 6 A (logic fans), 115 Vac @ 4 A (motor-blower fans)
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Fuses: FU1 (input), FU2 (24 V), FU3 (115 V) – 5×20 mm, blown-fuse LEDs
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Isolation: 1500 Vac primary-to-secondary
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Connectors: 3-pin Mate-N-Lock (24 V), 3-pin bayonet (115 V), 2×20-pin back-plane
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Protection: Over-current, short-circuit, thermal fold-back
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LEDs: Green “INPUT”, Green “24 V”, Green “115 V”, Red “FAULT”
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Operating Temperature: –20 °C to +70 °C
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Board Size: 203 × 127 × 25 mm, 0.7 kg conformal-coated
DS200FPSAG1ABB
Field Application & Problem Solved
Drive cubicles in a 7FA package hit 55 °C in August; if the muffin fans die you cook the GTO gate drivers in about ten minutes. This board keeps that from happening. It sits in slot 6, pulls 115 Vac off the control transformer, and spits out two clean feeds: 24 Vdc for the four logic-cooling muffin fans and 115 Vac for the ¼ HP cabinet blower. Lose the FPSA and both fan rails collapse; the Mark V throws “FAN FAIL” and trips the unit offline before heat soaks the stack. Swap the card, reset, and you’re back to base-load—no reprogramming, no re-cal. That’s why every field truck carries one in the glove box.
Drive cubicles in a 7FA package hit 55 °C in August; if the muffin fans die you cook the GTO gate drivers in about ten minutes. This board keeps that from happening. It sits in slot 6, pulls 115 Vac off the control transformer, and spits out two clean feeds: 24 Vdc for the four logic-cooling muffin fans and 115 Vac for the ¼ HP cabinet blower. Lose the FPSA and both fan rails collapse; the Mark V throws “FAN FAIL” and trips the unit offline before heat soaks the stack. Swap the card, reset, and you’re back to base-load—no reprogramming, no re-cal. That’s why every field truck carries one in the glove box.
Installation & Maintenance Pitfalls (Expert Tips)
Bayonet 115 V connector walks off
Vibration backs the bayonet out; blades arc and weld. Hit the collar a quarter-turn past the click and zip-tie the latch so it can’t unwind.
Bayonet 115 V connector walks off
Vibration backs the bayonet out; blades arc and weld. Hit the collar a quarter-turn past the click and zip-tie the latch so it can’t unwind.
Fuse LEDs lie on generator power
FU3 LED is neon across the 115 V line. If you’re on a floating diesel genset the neon won’t strike and you’ll swear the fuse is good when it’s open. Always ohm-out fuses with power off.
FU3 LED is neon across the 115 V line. If you’re on a floating diesel genset the neon won’t strike and you’ll swear the fuse is good when it’s open. Always ohm-out fuses with power off.
Tighten Mate-N-Lock screws once, then again after 24 h
The 3-pin 24 V block uses 4-40 screws. A cold start thermals the plastic; screws loosen and you chase random “FAN FAIL” that clears when the door is open. Torque 8 in-lb and re-hit after first heat cycle.
The 3-pin 24 V block uses 4-40 screws. A cold start thermals the plastic; screws loosen and you chase random “FAN FAIL” that clears when the door is open. Torque 8 in-lb and re-hit after first heat cycle.
Load-test before you leave
Plug in a spare muffin fan on the 24 V port and a shop vac on the 115 V port; both should spin without voltage sag <5 %. A weak DC-DC cap sags under load and will trip in six weeks when ambient hits 50 °C.
Plug in a spare muffin fan on the 24 V port and a shop vac on the 115 V port; both should spin without voltage sag <5 %. A weak DC-DC cap sags under load and will trip in six weeks when ambient hits 50 °C.
DS200FPSAG1ABB
Technical Deep Dive & Overview
Internally the board is a straight-forward linear supply. A toroidal step-down transformer feeds two secondaries: one into a full-wave bridge + filter for 24 Vdc, the other direct to the 115 Vac bayonet. Two SCR crowbars protect the 24 V rail—if voltage climbs 10 % above set-point the SCR shorts and blows FU2, saving the fans. No processor, no comm—just hardware. Because both rails are referenced to the same neutral, you can hot-swap with the drive idling; pull the old card, slam in the new, hit reset, and airflow is restored in under thirty seconds.
Internally the board is a straight-forward linear supply. A toroidal step-down transformer feeds two secondaries: one into a full-wave bridge + filter for 24 Vdc, the other direct to the 115 Vac bayonet. Two SCR crowbars protect the 24 V rail—if voltage climbs 10 % above set-point the SCR shorts and blows FU2, saving the fans. No processor, no comm—just hardware. Because both rails are referenced to the same neutral, you can hot-swap with the drive idling; pull the old card, slam in the new, hit reset, and airflow is restored in under thirty seconds.
