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GE 56SAM-844
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GE 56SAM-810
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Kollmorgen 60WKS-CE24022PB
Kollmorgen 60WKS-CE24022PB

GE 56SAM-844

Manufacturer: General Electric (GE Fanuc / GE Automation)

Series: Series 90-70 / VersaMax

Product Overview:
The GE 56SAM-844 is a 4-channel analog input module for GE Fanuc PLCs. It accepts 4–20 mA current loop signals or 0–10V voltage signals from field transmitters and converts them to digital values for the PLC processor.

Category:
Description

Technical Specifications:

Parameter Value
Number of Channels 4
Input Signal Type 4–20 mA (2-wire) or 0–10V DC
Resolution 12-bit (4096 steps)
Accuracy ±0.1% of full scale
Input Impedance (Voltage Mode) 100 kΩ minimum
Input Impedance (Current Mode) 250 Ω (internal burden)
Isolation 500V DC between field and logic
Common Mode Rejection 80 dB minimum at 60 Hz
Update Rate 10 ms per channel (100 Hz scan)
Operating Temperature 0°C to 60°C (32°F to 140°F)
Power Consumption 2.5W typical (logic side)
Mounting DIN rail / backplane (rack-mounted)
Weight Approx. 0.3 kg (0.66 lb)

Function Features:

  • Dual-mode input: supports both 4–20 mA and 0–10V DC
  • 12-bit resolution for high-precision measurement
  • Channel-to-channel isolation via opto-couplers
  • LED status indicators per channel
  • Removable terminal blocks for field wiring
  • Diagnostic LEDs for over-range, under-range, and fault conditions

Applicable Industries:
Process control, chemical plants, oil & gas, HVAC, water treatment, food & beverage.

Installation Requirements:

  • Mount in DIN rail enclosure or PLC rack
  • Use twisted-pair shielded cable for 4–20 mA signals
  • Ground shield at one end only (PLC end)
  • Maximum cable run: 300m (984 ft) for 4–20 mA

Usage Notes:

  • Configure input mode (current vs. voltage) via PLC software
  • For 4–20 mA: ensure loop power supply is 24V DC, 150mA minimum
  • Do not apply voltage to current input terminals — risk of module damage
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