Basic Information

• Manufacturer: Reliance Electric (Rockwell Automation)

• Part Number: 0-50004-R (alternate: 050004R)

• Type: DC Amplifier Card (直流放大卡)

• Series: SealPak (密封式直流驱动控制系统)

• Function: High-gain DC signal amplification, power drive for control loops

• Status: Obsolete / Discontinued (repair & surplus only)

• NSN: 5996-00-827-3660

Electrical Specifications

• Control Power: ±15 VDC (SealPak bus), +5 VDC logic

• Input Signal: ±10 VDC (low-level analog)

• Output Signal: ±10 VDC (high-current drive, up to 200 mA)

• Gain Range: 10–1000 (adjustable via front pot)

• Bandwidth: DC to 15 kHz

• Accuracy: ±0.1% FSR

• Protection: Short-circuit, overcurrent, thermal shutdown

• Isolation: Galvanic isolation (I/O ↔ logic ground)

Mechanical & Environmental

• Mounting: Standard SealPak slot-mount (slide-in + front lock screw)

• Dimensions (L×W×H): 279 × 216 × 178 mm

• Weight: Approx. 1.4 kg (3.0 lbs)

• Operating Temp: 0°C to 55°C (32°F to 131°F)

• Storage Temp: -25°C to 65°C (-13°F to 149°F)

• Humidity: 5%–95% non-condensing

• Coating: Conformal coated PCB (dust/moisture resistance)

Key Features

• High-Gain DC Amplification: Precision gain for low-level signal boosting

• Front-Panel Adjustment: Gain potentiometer; LED status (Power, Fault)

• Heavy-Duty Output: Drives multiple control cards or power stages directly

• Fault Protection: Self-protects against short circuits and overloads

• Harsh Environment Ready: Sealed design for industrial floor use

Compatible Systems & Replacement

• System: SealPak DC drive racks (legacy, paired with 0-50001-2R control card)

• Matched Modules: 0-50001-2R (control), 0-50005 (I/O), 0-50010 (power)

• Replacement: Direct replacement for older SealPak 0-50004 (non-R version)

Installation & Calibration

Installation

1. Power off the SealPak rack.

2. Insert 0-50004-R into an empty slot; tighten front locking screw.

3. Verify ±15 VDC and +5 VDC bus power.

Calibration

1. Power on; confirm Power LED is ON.

2. Apply a known ±10 VDC input signal.

3. Adjust Gain pot to get the desired output amplitude.

4. Check output current (≤200 mA) for stability.

5. Lock potentiometer; test under load.

Operation & Faults

• Normal: Power LED ON; stable output; no fault triggers.

• Fault LED ON: Short circuit, overcurrent, or thermal trip (reset after clearing fault).

• No Output: Check bus power, wiring, on-board fuse, or input signal.