Description
Core Product Summary
The SIGMATEK DNC115 is a single-axis positioning module for the SIGMATEK C-DIAS automation platform. It receives incremental encoder feedback, generates an analog setpoint for a drive, and provides digital inputs and outputs for axis referencing, limit monitoring, and drive control signals.
The module uses an RS-422 incremental encoder interface with 4-fold signal evaluation and a 16-bit position counter. Its 12-bit, −10 to +10 V DC analog output provides the position setpoint, while three digital inputs and three potential-free optocoupler outputs support reference, limit, enable, and direction-related functions. The module mounts in a C-DIAS module carrier and requires the matching C-DIAS bus environment.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | SIGMATEK |
| Model | DNC115 |
| Documented module designation | CNC 115 positioning module |
| Article number | 12-011-115 |
| Hardware version | 2.x |
| Product type | Single-axis positioning module |
| System family | SIGMATEK C-DIAS |
| Encoder interface | Incremental encoder, RS-422 level, A, /A, B, /B, R, /R |
| Encoder input frequency | Maximum 125 kHz |
| Counter frequency | Maximum 500 kHz |
| Signal evaluation | 4-fold |
| Position counter resolution | 16 bit |
| Encoder sensor supply | +5 V / 2 A |
| Analog output | 1 channel, −10 to +10 V DC |
| Analog output resolution | 12 bit, 5 mV per bit |
| Analog output value range | −2000 to +2000 |
| Analog output accuracy | ±0.4% of output value |
| Analog rise time | 50 µs or less |
| Analog refresh time | 1 ms or less for all channels |
| Digital inputs | 3 |
| Digital input voltage | Typical +24 V DC, maximum +30 V DC |
| Digital input current | 5 mA at +24 V |
| Digital input delay | Typically 0.1 ms |
| Digital outputs | 3, potential-free optocoupler outputs |
| Digital output switching voltage | Maximum +30 V DC |
| Digital output current capacity | Maximum 100 mA |
| Residual output voltage | Less than 2 V at 100 mA |
| Supply voltage | 18 to 30 V DC |
| C-DIAS bus current consumption | Less than 150 mA at +5 V; less than 50 mA at +24 V |
| Operating temperature | 0 to +60 °C |
| Storage temperature | −20 to +85 °C |
| Relative humidity | 0 to 95%, non-condensing |
| Protection type | IP20 |
| EMC immunity | EN 61000-6-2, industrial area |
| Shock resistance | EN 60068-2-27, 150 m/s² |
| Standardization | UL, E247993 |
| Software macro | Available |
Engineering Selection Highlights
- The DNC115 is a one-axis positioning module, so one module is required for each independently positioned axis in a C-DIAS system.
- Its RS-422 incremental encoder input accepts A, /A, B, /B, R, and /R signals, making encoder signal type and wiring compatibility a primary selection check.
- The 125 kHz maximum encoder input frequency and 500 kHz maximum counter frequency define the feedback-speed boundary for the connected encoder.
- The −10 to +10 V DC, 12-bit analog output is intended as the position setpoint path to a compatible drive or power controller.
- Three digital inputs support reference and end-position monitoring functions, including an interrupt function on input 3.
- Three potential-free optocoupler outputs can control signals such as release and direction for compatible motor controllers.
- Hardware version 2.x must be used with C-DIAS module carriers that supply the required 32 MHz clock; versions below 2.0 require CMB 021, CMB 041, or CMB 081 carriers.
DNC115
DNC115
System Compatibility & Integration Requirements
| Item / Dependency | Verified Compatibility or Requirement | Practical Note |
|---|---|---|
| Automation platform | SIGMATEK C-DIAS | The module is a C-DIAS positioning module and must operate within a compatible C-DIAS system. |
| Module carrier | CMB 022, CMB 042, or CMB 082 for hardware version 2.x | These carriers no longer provide the 32 MHz clock required by older hardware. |
| Module carrier for earlier hardware | CMB 021, CMB 041, or CMB 081 for hardware versions below 2.0 | A module with hardware version below 2.0 is functional only with these carriers. |
| Encoder feedback | Incremental encoder with RS-422-level A, /A, B, /B, R, and /R signals | The encoder interface includes 150 Ω termination. |
| Drive setpoint | −10 to +10 V DC analog output | The output is produced by a 12-bit D/A converter and is short-circuit protected. |
| External supply | 18 to 30 V DC | An external supply voltage below 18 V causes the error LED to light red. |
| Software | Available software macro | The module has an available software macro for integration in the SIGMATEK engineering environment. |
Dimensions, Mounting & Connection Notes
| Item | Verified Data |
|---|---|
| Module width | 24.90 mm |
| Documented dimensions | 104.10 mm × 129 mm × 109.2 mm, including covers |
| Mounting | C-DIAS module carrier |
| Protection type | IP20 |
| Encoder termination | 150 Ω |
| Sensor supply | +5 V / 2 A |
The module is installed in a compatible C-DIAS module carrier rather than being a standalone DIN-rail controller. Its hardware revision determines which C-DIAS carrier family can be used, because the 32 MHz clock availability differs between carrier generations.
Detailed Product Overview
The SIGMATEK DNC115 is a compact single-axis positioning module intended for use in SIGMATEK C-DIAS control systems. Its role is to process incremental encoder feedback from one axis and produce an analog position setpoint for the associated drive electronics. In this arrangement, the module performs the position-control interface function, while the connected drive converts the setpoint into motor motion.
Position feedback enters through an RS-422 incremental encoder interface supporting complementary A, B, and reference signals. The module evaluates the signals with 4-fold evaluation and provides a 16-bit position counter. The maximum input frequency is 125 kHz, corresponding to a maximum counter frequency of 500 kHz under the documented 4-fold evaluation scheme. These limits should be checked against the encoder’s signal frequency at the machine’s highest operating speed.
The analog output is a single −10 to +10 V DC channel with 12-bit resolution, equivalent to 5 mV per bit. The documented output value range is −2000 to +2000, with an accuracy of ±0.4% of the output value. The output is short-circuit protected and has a rise time of 50 µs or less, with a refresh time of 1 ms or less across all channels. These characteristics make the module suitable for drives that accept a bipolar analog velocity or position setpoint.
Digital integration is handled through three inputs and three potential-free optocoupler outputs. The inputs operate at a typical +24 V DC level and include an interrupt function on input 3. The outputs are rated for up to +30 V DC and 100 mA, with less than 2 V residual voltage at full rated current. The manufacturer documentation identifies their use for functions such as release and direction control of compatible motor controllers.
The module requires an 18 to 30 V DC supply and draws less than 150 mA at +5 V and less than 50 mA at +24 V from the C-DIAS bus. It is rated IP20 and is intended for cabinet installation in a C-DIAS module carrier. Hardware revision is a critical integration point: version 2.x modules work with CMB 022, CMB 042, or CMB 082 carriers, whereas modules below hardware version 2.0 require CMB 021, CMB 041, or CMB 081 carriers because they depend on the 32 MHz clock that the later carriers no longer provide.
Applications & System Role
The DNC115 occupies the motion-control layer of a SIGMATEK C-DIAS system. It closes the loop between encoder feedback from one axis and the analog setpoint supplied to a drive or motor-controller stage. The module converts incremental encoder position data into a controlled position value and uses its digital I/O for axis referencing, end-position monitoring, and drive control signaling.
It is a fit for single-axis positioning functions within a larger C-DIAS machine-control system, particularly where an incremental encoder provides position feedback and the drive accepts a −10 to +10 V DC analog setpoint. Multiple DNC115 modules can be used where a machine requires more than one independently controlled positioning axis, subject to the capacity and configuration of the host C-DIAS system.
FAQ
What is the SIGMATEK DNC115?
The SIGMATEK DNC115 is a single-axis positioning module for SIGMATEK C-DIAS automation systems. It processes incremental encoder feedback and provides an analog setpoint output for a drive.
How many axes does the DNC115 control?
It controls one axis. A separate module is required for each additional independently positioned axis.
What encoder interface does the DNC115 use?
It uses an RS-422 incremental encoder interface with A, /A, B, /B, R, and /R signals and 150 Ω termination.
What is the encoder input limit?
The maximum input frequency is 125 kHz. With 4-fold evaluation, the maximum counter frequency is 500 kHz.
What analog output does the module provide?
It provides one −10 to +10 V DC analog output with 12-bit resolution, a value range of −2000 to +2000, and short-circuit protection.
Which C-DIAS module carriers are required?
Hardware version 2.x modules are used with CMB 022, CMB 042, or CMB 082 carriers. Modules with hardware versions below 2.0 require CMB 021, CMB 041, or CMB 081 carriers.
What supply voltage does the DNC115 require?
It requires an 18 to 30 V DC supply. A supply voltage below 18 V causes the error LED to light red.
Does the DNC115 include digital I/O?
Yes. It has three digital inputs for reference and end-position functions and three potential-free optocoupler outputs rated up to +30 V DC and 100 mA.
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