1. General Description

2. Product Identification

• Model Number: 170AEC92000

• Series: Modicon Momentum

• Type: High‑speed counter base (2 channels)

• Channel Configuration: 2 counters × 3 inputs / 2 outputs

• Total I/O: 6 discrete inputs, 4 discrete outputs

• Dimensions (W × D × H): 107.5 × 45 × 16.8 mm

• Weight: 0.21 kg

• Protection Class: IP20

• Certifications: CE, UL, cUL, CSA, RoHS

• Logic Type: Positive (true high)

• Isolation (Field ↔ Bus): 1500 VAC for 1 minute

• LED Indicators: 6 green (inputs), 4 yellow (outputs), 2 red (counter status)

3. Electrical Specifications

Digital Inputs (6 Channels, 24 VDC)

• Input Voltage Range: −3 VDC to +30 VDC (24 VDC nominal)

• Logic Level 1: ≥ 11 VDC

• Logic Level 0: ≤ 5 VDC

• Input Current: 8 mA @ 24 VDC

• Response Time: ≤ 3 µs (0 ↔ 1)

• Overvoltage Protection: 45 VDC for 10 s

• Counter Input Frequency:

  • Single‑ended (24 V): up to 16 kHz

  • Differential (5 V RS‑422): up to 200 kHz

Digital Outputs (4 Channels, 24 VDC)

• Output Type: Solid‑state (sourcing, positive logic)

• Rated Voltage: 24 VDC ±20%

• Current Rating:

  • Per channel: 0.5 A (continuous)

  • Per counter: 1 A

  • Per module: 2 A

• Voltage Drop (On): ≤ 0.5 V @ 0.5 A

• Leakage Current (Off): ≤ 1 mA @ 24 VDC

• Response Time: ≤ 0.1 µs (0 ↔ 1)

• Short‑Circuit Protection: Electronic (per channel, auto‑reset)

Power

• Supply Voltage: 24 VDC ±20% (logic + field)

• Current Consumption: 120 mA @ 24 VDC (no load)

• Power Dissipation: 3 W typical, 4.5 W maximum (full load)

4. Counter Modes & Features

Supported Modes (per counter)

• Event Counting: Up/down, quadrature (×1, ×2, ×4)

• Frequency Measurement: Pulse rate (Hz)

• Period Measurement: Time between pulses (µs)

• Position Tracking: Incremental encoder (A/B/Z)

• SSI Absolute Encoder: 24‑bit gray code, RS‑422 differential

• Preset Output: 2 programmable setpoints (compare → output trigger)

• Reference & Latch: Hardware reference input; latch counter value

Key Counter Parameters

• Resolution: 32‑bit signed (‑2,147,483,648 to +2,147,483,647)

• Count Speed: 200 kHz max (differential)

• Input Filters: Programmable debounce (0–10 ms)

• Operating Modes: Configured via software (Unity Pro, SoMachine)

5. Environmental Ratings

• Operating Temperature: 0 °C to +60 °C (32 °F to 140 °F), non‑condensing

• Storage Temperature: −40 °C to +85 °C, non‑condensing

• Relative Humidity: 5% to 95%, non‑condensing

• Vibration: IEC 60068‑2‑6 (1 g, 10–150 Hz)

• Shock: IEC 60068‑2‑27 (15 g, 11 ms)

• Altitude: Up to 5000 m (derate above 2000 m)

• EMC: IEC 61000‑6‑2, IEC 61000‑6‑4 (industrial noise immunity)

6. Key Features

• 2 Independent Counters: Dual‑channel high‑speed measurement (up to 200 kHz).

• Universal Inputs: Accepts 24 V single‑ended or 5 V differential (RS‑422) signals.

• SSI Absolute Encoder Support: Direct interface to 24‑bit gray‑code encoders.

• 4 High‑Speed Outputs: 0.1 µs response for fast preset/limit actions.

• 32‑Bit Resolution: Full‑range counting for precision positioning.

• Removable Terminal Blocks: Simplify wiring and module replacement.

• Snap‑On Mounting: Fast attachment to Momentum backplane.

• LED Status: Real‑time indication of I/O and counter state.

7. Compatibility

• Backplane: Modicon Momentum I/O base rack.

• Adapters: 170ENT (Ethernet), 170PBM (Profibus), 170CPS (power supply).

• PLC Compatibility: Quantum, Premium, M340, Momentum controllers.

• Software: Unity Pro, SoMachine, Modbus protocol.

• Terminals: 14–22 AWG copper wire, torque 0.5–0.6 N·m.

8. Applications

• Motion Control: Speed/position monitoring for conveyors, pumps, and motors.

• Material Handling: Package counting, length measurement, and sortation.

• Machine Tools: Spindle speed, axis positioning, and tool monitoring.

• Packaging: Fill volume, batch counting, and label synchronization.

• Renewable Energy: Turbine speed, pitch control, and encoder feedback.

9. Installation & Wiring

1. Power Off: Disconnect all system power before installation.

2. Mounting: Snap module firmly onto Momentum backplane; ensure proper grounding.

3. Wiring (Inputs – Counter 1/2):

   • Count (A): Pulse input (single‑ended or differential).

   • Gate (B): Enable/disable counting.

   • Reference (Z): Reset/latch counter value.

4. Wiring (Outputs – Counter 1/2):

   • OUT1: Preset 1 (compare → trigger).

   • OUT2: Preset 2 (compare → trigger).

5. Torque: Tighten terminals to 0.5–0.6 N·m (14–22 AWG copper wire).

6. Verification: Check connections; power on and confirm LED status.

10. Maintenance

• Periodic Inspection: Check terminal tightness and LED operation every 6 months.

• Cleaning: Keep surface free of dust and contaminants; use dry cloth only.

• Environment: Avoid corrosive gases, extreme vibration, or moisture.

• Firmware: Update via Unity Pro for latest features and bug fixes.

11. Safety Notes

• 24 VDC Hazard: Only qualified electricians should perform wiring; follow local electrical codes.

• Voltage Limits: Do not exceed 30 VDC on inputs / 28.8 VDC on outputs.

• Current Ratings: Adhere to 0.5 A per channel / 2 A per module limits.

• Isolation: Maintain 1500 VAC isolation between field and bus circuits.

• Encoder Wiring: Use shielded twisted‑pair cable for high‑speed signals (RS‑422).

• Disposal: Dispose of module per local electronic waste regulations.