Product details
Product Overview
Honeywell 900K01-0201 is a 4 Channel Pulse/Frequency/Quadrature Module with DC voltage type. It offers three functions: Pulse Input, Frequency measurement, and Pulse Output. Each channel configures independently for any function. Green LED blinks during scanning. Red LED indicates module or channel diagnostics. Quadrature not supported in current release.
Key Specifications
- Brand: Honeywell
- Model: 900K01-0201
- Product Type: 4 Channel Pulse/Frequency/Quadrature Module
- Input Voltage Range: 0 VDC to 24 VDC
- Inputs per Module: 4
- Digital Output: Open collector, 5 to 24V, 30mA max
- Status LEDs: Green (scanning), Red (diagnostic)
Pulse Input Details
- Input Voltage: 0 to 24 VDC
- ON Level: 3.0 VDC minimum
- OFF Level: 1.0 VDC maximum
- Impedance: 25K ohm
- Max Frequency: 10 KHz
- Min Pulse Width: 3 μsec
- Counter: 32 bits
- Preset Value: Configurable within 32-bit range
- Preset Action: Selectable ON or OFF in HC Designer
- Digital Output on Preset: ON for 1 sec (action ON) or latches ON (action OFF)
- Counter HOLD: Via I/O data type in ControlEdge Builder
- Counter RESET: OFF to ON transition on RST input
- Overflow Flag (STS=33): Set on counter overflow, reset by RST
Frequency Input Specifications
- Input Voltage: 0 to 24 VDC
- ON Level: 3.0 VDC minimum
- OFF Level: 1.0 VDC maximum
- Impedance: 25K ohm
- Frequency Range: 10 Hz minimum to 100 KHz maximum
- Min Pulse Width by Range:
- 500 μsec (10 Hz to 500 Hz)
- 50 μsec (10 Hz to 5 KHz)
- 2.5 μsec (10 Hz to 100 KHz)
- Digital Output: ON if frequency out of range, else OFF
Pulse Output Specifications
- Channel Use: Any channel can output pulses (renders input unusable)
- Output Type: Open collector, 5 to 24V, 30 mA max
- Frequency Range: 25 Hz to 10 KHz
- Duty Cycle: Always 50%
- Output Duration: Selectable CONTINUOUS or NUMBERED PULSES
Installation Guide
- Mounting: Install in Series 900 I/O rack.
- Wiring: Connect field signals to channel terminals.
- Configuration: Use HC Designer or ControlEdge Builder.
- LED Check: Green blinking confirms scanning.
Package Contents
- Includes: Honeywell 900K01-0201 module, documentation.
- Warranty: 12 months against defects.
- Note: Quadrature mode not supported in current firmware.
Shipping Options
- Couriers: FedEx, UPS, DHL express worldwide.
- Packaging: Anti-static protective box.
Typical Applications
- Pulse Counting: Flow meters, totalizers, position feedback.
- Frequency Monitoring: Speed sensors, tachometers, vibration.
- Pulse Generation: Stepper motor control, test signals.
- Preset Control: Batch counting with output activation.
Expert FAQs
- Q: Can I use all four channels for different functions?A: Yes, each channel configures independently. Mix pulse input, frequency input, or pulse output per channel.
- Q: What happens if I select pulse output on a channel?A: That channel becomes output only. You lose input capability on that specific channel. Plan configuration accordingly.
- Q: How do I reset the counter when preset action OFF latches output?A: Send reset command via RST input in ControlEdge Builder. OFF to ON transition clears latch and resets counter.
- Q: What is the difference between preset actions ON vs OFF?A: ON gives a 1-second output pulse then resets counter. OFF latches output ON until manual reset. Choose based on application.
- Q: Can I measure frequencies above 100 KHz?A: No, 100 KHz is maximum. For higher frequencies, consider dedicated high-speed modules.
- Q: Does the 12-month warranty cover firmware issues?A: Yes, warranty covers defects including firmware. Quadrature not supported is a known limitation, not a defect.
- Q: How fast is international shipping?A: FedEx, UPS, DHL deliver in 3-5 business days. Express options available at checkout.
- Q: Can I upgrade firmware to enable quadrature later?A: Check Honeywell release notes. Current release does not support quadrature. Future updates may add it.
Selection Guide
- Choose 900K01-0201 if: You need multi-function counting and frequency in one module. 0-24V DC signals. Space saving in rack.
- Alternative: For isolated inputs, consider 900K01-0202 (different voltage). For higher speed, use dedicated counter modules.
- Configuration Tip: Plan preset actions before programming. ON for auto-reset batches, OFF for alarm latching.
- Wiring Advice: Keep pulse wires short for >10 KHz signals. Use shielded cable to avoid noise.
- Spare Strategy: Stock one spare module for critical lines. 4-channel density covers multiple spares in one unit.
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