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901C-2501

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Control Technology Inc. 901C-2501 is the PCB assembly identifier for a 2501 eight-input/four-output isolated analog I/O module.
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Technical specifications for 901C-2501

  • Manufacturer:
    CTI-Control Technology Inc
  • Part Number:
    901C-2501
  • Product Family:
    CTI-Control Technology Inc
  • Product Type:
    8-Input / 4-Output Analog Module
  • Stock:
    1
  • Compatible I/O Base:
    CTI 2500 Series or Siemens SIMATIC 505
  • Analog Inputs:
    8
  • Analog Outputs:
    4
  • Input Ranges:
    0–5 V, 0–10 V, 0–20 mA, ±5 V, ±10 V or ±20 mA
  • Output Ranges:
    0–5 V, 0–10 V, 0–20 mA, ±5 V, ±10 V or ±20 mA
  • Input Resolution:
    15 bits plus sign
  • Output Resolution:
    12 bits
  • Update Time:
    6 ms for all channels; 7 ms in high-density mode
  • Isolation:
    Inputs: 1500 V DC channel-to-PLC; outputs: 1500 V DC channel-to-channel
  • External Output Supply:
    20–30 V DC, 0.25 A
  • Backplane Power:
    3 W maximum
  • Field Wire:
    14–22 AWG
  • Form Factor:
    Single-wide
  • Weight:
    0.42 kg
  • Tariff Code:
    8538900000
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Inputs Outputs Installation Application
  • Eight analog inputs and four analog outputs
  • Selectable unipolar and bipolar voltage or current ranges
  • Single-wide module for CTI 2500 Series or Siemens SIMATIC 505 I/O bases

901C-2501 is the circuit-board identifier visible on the Control Technology Inc. 2501 eight-input/four-output analog module.

The module combines isolated analog acquisition and analog control outputs, with voltage and current modes selected for the required field signals.

Before installation or replacement, verify the complete model and visible nameplate, electrical ratings, connector and wiring arrangement, mechanical fit, configuration, environmental limits, and application-specific safety requirements.

Availability, condition, price, and shipping time for 901C-2501 are confirmed during quotation.

Control Technology Inc. 901C-2501 / 2501 Analog Module Manuals, Product Family, Links

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

  • Eight analog input channels support voltage or current signals
  • Input resolution is 15 bits plus sign
  • Input isolation is specified at 1500 V DC channel-to-PLC
  • Four analog output channels support voltage or current signals
  • Output resolution is 12 bits
  • Output isolation is specified at 1500 V DC channel-to-channel
  • The module is single-wide for CTI 2500 Series or Siemens SIMATIC 505 bases
  • The output section requires a 20–30 V DC user supply
  • The field-wiring specification covers 14–22 AWG conductors
  • Machine control analog I/O
  • Loop temperature control
  • Industrial weighing systems
Description
901C-2501 is the printed circuit assembly identifier visible on a Control Technology Inc. 2501 analog module with eight analog inputs and four analog outputs.

The official 2501 product bulletin documents selectable voltage and current ranges, 6 ms all-channel updating, isolated I/O, and installation in a CTI 2500 Series or Siemens SIMATIC 505 I/O base. The front panel identifies eight input points and four output points.

Before installation or replacement, verify the complete model and nameplate, electrical ratings, connector and wiring arrangement, mechanical fit, configuration, environmental limits, and application-specific safety requirements.
Alternative Names
901C-2501 CTI 901C-2501 Control Technology 901C-2501 Control Technology Inc. 901C-2501 CTI 2501 Control Technology 2501 2501 8in/4out Analog Module
Technical notes
Treat 901C-2501 as the installed PCB identity within the commercial 2501 module; verify base, scaling, signal ranges, external supply, connector, and field wiring.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
How are 901C-2501 and 2501 related?
901C-2501 is printed on the supplied PCB, while 2501 appears on the front panel and in the official product bulletin. Match both identifiers when replacing the installed assembly.
What additional connector is required for a new CTI 901C-2501 installation?
A new CTI 901C-2501 installation requires the separately ordered CTI 2500-40F removable wiring connector. Confirm that this connector is present before scheduling installation.
Which control applications are well suited to CTI 901C-2501?
CTI 901C-2501 is suited to machine control, temperature-loop control and weighing applications that require analog measurements and control outputs in one module. Confirm that its eight inputs, four outputs and selectable channel ranges match the application before installation.
What configuration must be recorded before replacing CTI 901C-2501?
Record the operating mode and each channel’s input or output range and polarity before removal. These settings determine whether CTI 901C-2501 operates in input/output or input-only mode and whether individual channels use unipolar or bipolar signals.
Does CTI 901C-2501 need an external output supply?
Yes. The official 2501 specification lists a 20–30 V DC, 0.25 A user supply for the output section.
Can CTI 901C-2501 replace Siemens 505-7012 or 505-7016?
The manufacturer states that 2501 replaces those modules except for built-in scaling. Confirm scaling, programming and field ranges before substitution.
What should be matched before ordering CTI 901C-2501?
Match the 901C-2501 PCB marking, 2501 front-panel identity, eight-input/four-output function, I/O base, signal ranges, external supply, connector and field wiring.