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The GE DS200CPCAG1A DS200CPCAG1ABB drives contactor coils for motor control applications. This board receives low-voltage signals from the main processor. Then it converts them into high-current pulses for coil energization.
Product Overview
We equipped this pilot board with eight independent output channels. Each channel controls a separate contactor or relay in the drive system. Moreover, this unit includes flyback diodes for inductive load protection.
Technical Specifications
| Parameter | Specification |
|---|---|
| Dimensions | 25.4 cm (length) x 10.2 cm (width) |
| Weight | 0.38 kg (approximately 0.84 lb) |
| Interface Type | Single 50-pin backplane connector plus terminal block |
| Component Count | 124 components including MOSFETs and optocouplers |
| Energy Storage | 8 electrolytic capacitors (100 µF each, 50V) |
| Number of Channels | 8 independent contactor driver outputs |
| Output Voltage | 24V DC, 48V DC, or 125V DC field-selectable |
| Output Current | 2A continuous, 10A inrush for 100 ms |
| Input Signal | 5V logic from backplane at 10 mA per channel |
| Response Time | 5 ms from input to output closure |
Driver Circuit Topology
The GE DS200CPCAG1A DS200CPCAG1ABB uses a MOSFET on each output channel. Its eight storage capacitors provide surge current for coil pull-in. Additionally, each channel includes a freewheeling diode across the output. This diode absorbs back EMF when the contactor coil de-energizes. Therefore, you do not need external suppression components.
Output Configuration
Set the operating voltage using the onboard selector jumpers. Jumper block J1 selects 24V for channels 1 through 4. Jumper block J2 selects voltage for channels 5 through 8. Each output shares a common positive supply for its group. Consequently, you can run two different voltages on the same board.
Energy Storage Function
The eight electrolytic capacitors store energy for inrush current demands. A typical contactor coil draws 8A for its initial pull-in phase. These capacitors deliver that surge without dropping the supply voltage. After 100 ms, the hold current drops to 0.5A automatically. The capacitors recharge between switching cycles for repeated operation.
Installation Steps
Insert this board into any standard Mark V I/O slot. Align the GE DS200CPCAG1A DS200CPCAG1ABB with its backplane guide rails. Push firmly until the ejector latch clicks into the locked position. Then connect the output wiring to the front terminal block. Always use the correct torque specification of 0.5 Nm for each screw.
Wiring Recommendations
Use twisted pair cable for each output to reduce radiated noise. Keep contactor wires separate from low-level analog signals. Run outputs in dedicated conduits at least 15 cm from inputs. The GE DS200CPCAG1A DS200CPCAG1ABB provides no internal output fuses. Therefore, add external fuses rated at 3A slow-blow for each channel.
Status Indication
Eight green LEDs show the commanded state of each output. An illuminated LED means the processor wants the contactor closed. However, the LED does not confirm actual contactor operation. Use auxiliary contacts on the contactor for feedback verification. Replace the board if an LED stays on without a command signal.
Typical Applications
This pilot board controls motor starters and solenoid valves. Many pumping stations use the GE DS200CPCAG1A DS200CPCAG1ABB for valve actuation. Its robust design handles frequent switching up to 600 cycles per hour.