1. General Description

2. Specifications

2.1 Counter Channels

• Number of channels: 5 (independent)

• Counter resolution: 32‑bit (signed)

• Max input frequency:

  • 100 kHz (5 VDC differential encoder)

  • 20 kHz (24 VDC single‑ended encoder)

• Input types: A/B quadrature, pulse/direction, up/down, event

• Modes per channel:

  • Event counter

  • Differential (quadrature) counter

  • Period/frequency meter

  • Watchdog (pulse presence monitoring)

2.2 Digital Inputs (8 points)

• Voltage: 24 VDC nominal

• Type: Sink (NPN), 7 mA typical

• Isolation: 2500 V AC (channel‑to‑backplane)

• Response time: ≤ 1 µs

2.3 Digital Outputs (8 points)

• Voltage: 24 VDC nominal

• Type: Sourcing transistor (PNP)

• Current: 0.5 A per channel (max)

• Protection: Short‑circuit & overload

• Isolation: 2500 V AC

2.4 Power & Environment

• Backplane power: 5 VDC

• Power dissipation: ≤ 6 W

• Operating temperature: 0 °C to +60 °C

• Storage temperature: −40 °C to +85 °C

• Relative humidity: 5–95 % (non‑condensing)

• Certifications: CE, UL, CSA, RoHS

2.5 Mechanical

• Form factor: Single slot, Quantum rack

• Dimensions (W×H×D): 104 × 40 × 250 mm

• Weight: ~0.3 kg

• Connector: 40‑pin terminal block (separate order)

3. Operation Modes (per channel)

1. Event Counter

   Counts rising/falling edges; no latch/timer; 32‑bit wrap‑around.
2. Differential (Quadrature) Counter

   A/B phase decoding (×1, ×2, ×4); direction auto‑detect.
3. Period/Frequency Meter

   Measures pulse period (µs) or frequency (Hz); configurable gate time.
4. Watchdog Timer

   Monitors pulse presence; triggers output if no pulse within preset time (safety).

4. Module Architecture

• 5 counter channels with dedicated hardware logic

• 8 DI / 8 DO mapped to Quantum I/O table

• LED indicators:

  • PWR: Green = power OK

  • RUN: Green = module active

  • ERR: Red = fault (config, wiring, overload)

  • CH1–CH5: Green = counting activity

5. Installation

1. Power off the Quantum rack.

2. Insert module into any empty slot; push firmly until seated.

3. Secure front panel screws.

4. Wire encoders/sensors to the 40‑pin terminal block (shielded cable recommended).

5. Power on; verify PWR and RUN LEDs are green.

6. Configuration (EcoStruxure Control Expert / Unity Pro)

1. Add 140EHC10500 to hardware configuration.

2. For each channel:

   • Select mode (event, differential, period, watchdog)

   • Set input type (5 V / 24 V, single‑ended / differential)

   • Configure preset values, setpoints, and output mapping

3. Assign 8 DI / 8 DO to I/O addresses.

4. Download configuration to PLC; check ERR LED.

7. I/O Mapping

• Inputs 0–7: 24 VDC sink; read via Quantum input table

• Outputs 0–7: 24 VDC sourcing; write via Quantum output table

• Counter data: 32‑bit values in PLC memory (per channel: current count, preset, status)

8. Applications

• High‑speed pulse counting (encoders, flow meters, tachometers)

• Position/speed monitoring (conveyors, machine tools, packaging)

• Frequency/period measurement

• Event logging & sequencing

• Safety pulse monitoring (watchdog)

9. Diagnostics & Troubleshooting

• PWR off: Check backplane power; re‑seat module

• RUN off: Verify CPU is in RUN; re‑download config

• ERR on: Check wiring, encoder voltage, config errors, or output overload

• No counting: Verify encoder power, A/B phase wiring, input frequency limit

10. Reference Documents

• Official Manual: Quantum using EcoStruxure Control Expert – 140EHC10500 User Manual

• Doc No.: 33002491K01000 (Rev 09, Dec 2018)

• Software: EcoStruxure Control Expert (Unity Pro) v7.0+