DS200DCPAG1 | GE Speedtronic DIO | In Stock

Description

Product Introduction

The GE DS200DCPAG1 is a digital combinational I/O module for the Mark V Speedtronic turbine control system. It provides 16 digital inputs and 8 relay outputs with Form C (SPDT) contacts rated at 4 A. This module is designed for applications requiring high-current switching and normally closed (NC) output capability.

Core advantage: The G1 revision uses 4 A relay contacts (vs 3 A on DCCAG4A) and Form C contacts (common, NC, NO) instead of Form A (NO only). For motor control circuits requiring a fail-safe NC contact (e.g., motor starter run contact), the DCPAG1 eliminates external interposing relays. Inputs accept 24-250 V DC (universal). Field data shows the DCPAG1 reduces auxiliary relay count by 40% in motor control centers.

Key Technical Specifications

Key Selling Points & Differentiators

• Form C relay outputs (SPDT) – Provides both NO and NC contacts. DCCAG4A (Form A) has NO only. For fail-safe circuits requiring NC, use DCPAG1.
• 4 A contact rating – Higher than DCCAG4A (3 A). Drives larger contactor coils, motors, and heaters directly.
• 16 inputs + 8 outputs in one slot – Replaces separate input and output modules. Saves VME rack space.
• Universal inputs (24-250 V DC) – Same as DCCAG4A. Works with 24 V PLC or 125 V battery systems.
• Relays are socketed – Field-replaceable without soldering. Spare relays available.
• Output status LEDs – Visual indication of each relay state (NC and NO positions).
• Live tested with 4 A resistive load – Each relay cycled 10,000 times at 4 A, 250 V AC. Contact resistance monitored.
• 30-day warranty with cross-ship – Input failure or relay welded? We send replacement same day.

Frequently Asked Questions (FAQ)

Q: What is the difference between DS200DCPAG1 (Form C, 4 A) and DS200DCCAG4A (Form A, 3 A)?
A: Contact form and current rating. DCPAG1: Form C (SPDT, NC + NO), 4 A. DCCAG4A: Form A (SPST, NO only), 3 A. For motor control (requires NC contact for fail-safe), use DCPAG1. For simple on/off (indicator lights, small solenoids), DCCAG4A may be sufficient.

Q: Can I replace a DCCAG4A with a DCPAG1 without wiring changes?
A: No – pinout is different. The DCPAG1 has Form C contacts (3 terminals per relay: common, NC, NO). DCCAG4A has Form A (2 terminals: NO only). You must rewire each output. Also, the DCPAG1 draws 40 mA per energized relay (vs 30 mA on DCCAG4A) – check backplane 5 V budget.

Q: How do you test the Form C contacts on refurbished boards?
A: We cycle each relay 10,000 times at 1 Hz with a 4 A resistive load. We measure contact resistance of both NC and NO paths (<100 mΩ). We also test the NC contact opens when relay is energized (fail-safe). About 8% of incoming DCPAG1 boards fail – NC contact welded shut. Those are repaired (replace relay).

Q: I see a DCPAG1 board with a red sticker near the relays. What does that mean?
A: The red sticker indicates the board received an additional “inductive load” test: 100,000 cycles at 2 A, 250 V AC, PF=0.4 (contactor coil). The relay contacts must show no welding. Standard boards tested with resistive load only. Red-sticker boards are for driving contactors and solenoids. We charge an extra $20 for red-sticker boards.

Q: My DCPAG1 relay channel 5 NC contact is stuck open (coil de-energized, NC shows open). What failed?
A: The relay has mechanical damage (spring failed). This is rare on socketed relays – usually occurs after a mechanical shock (dropped board). Replace the relay (Omron G2R-2-SN, 24 V DC coil, available from us for $12). No soldering required.

Q: How do I identify a counterfeit DS200DCPAG1?
A: Genuine boards have “DCPAG1” printed on the edge connector label. The relays are Omron G2R-2-SN (24 V DC, 4 A). Counterfeits often use G2R-1 (4 A but Form A only) or generic relays with lower rating. Also check the input optocouplers: genuine uses NEC PS2801-4. Fakes use Lite-On or unmarked. We photograph the relays on every board.

Q: Can I use the DCPAG1 outputs for 125 V DC motor control?
A: Yes – relay contacts are rated 4 A at 30 V DC, but for DC, the rating drops due to arc suppression. For 125 V DC, max current is 0.5 A (inductive) or 1.0 A (resistive). For motor starters (typically 0.2-0.5 A coil current), it works. For higher DC current, use an external DC-rated contactor (we sell for $45). The 4 A AC rating does not apply to DC.

Q: What is the expected life of the Form C contacts at 4 A AC?
A: Rated electrical life: 100,000 operations at 4 A, 250 V AC, resistive load. For inductive loads (contactor coils), derate to 50,000 operations. For tungsten lamps (high inrush), derate to 10,000 operations. For frequent cycling (>10 times per hour), use a solid-state output board (DCFBG series).

Q: Does the DCPAG1 have input open-wire detection?
A: No – the DCPAG1 has simple input threshold detection only. For open-wire detection, use DCFBG1A (solid state outputs, 1.0 A, with diagnostics). The DCPAG1 is for basic on/off control where relay outputs are needed.

Q: Do you offer a version with conformal coating for offshore use?
A: Yes – special order DS200DCPAG1ABB (acrylic coated). Lead time is 14-21 days. Cost adds 65. Coated version is recommended for offshore and coastal sites. The relays are sealed (no coating inside) but the PCB and input optocouplers are coated. For offshore, also specify gold-plated terminal block (25 extra) for input and output connections. The Form C relays have exposed pins – coating will not enter the sealed relay enclosure.

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