CC-PSP401 Overspeed Relay Honeywell

Honeywell CC-PSP401: Machinery Overspeed Safety

The Honeywell CC-PSP401 acts as a safety watchdog for critical rotating assets. This speed protection module continuously compares turbine or compressor speed against four independent setpoints.

Core Protection Specifications

• Trip Response: <50ms from overspeed detection to relay change
• Setpoints: 4 programmable levels per channel (alert, danger, start, stop)
• Redundancy: Dual independent processing channels on one module
• Outputs: 4 Form-C relays (dry contacts, 5A rating)
• Analog Output: Live 4-20mA speed retransmission for DCS trending

Sensor Input Flexibility

• Magnetic Pickups: Direct connection, no external signal conditioner
• Proximity Probes: Accepts eddy current types (3300, 7200 series)
• Hall Effect: 3-wire digital or analog sensors
• Frequency Range: 0.1 Hz to 20 kHz covers low-speed turning gear to high-speed turbines

Environmental & Physical

• Temperature: -40°C to +70°C (suitable for turbine decks)
• Vibration: Certified to IEC 60068-2-6 for rotating machinery areas
• Isolation: 1500V between field inputs and logic
• Weight: 1.2kg (3.3 lbs) rugged construction
• Warranty: 12 months factory, new in original Honeywell packing

Frequently Asked Questions

Q: Can the CC-PSP401 replace an existing mechanical bolt sensor system?

A: Yes. Many users replace mechanical systems with the CC-PSP401. It provides faster response and self-diagnostics. You keep existing magnetic pickups; the module interfaces directly.

Q: How do I set different trip speeds for startup and run modes?

A: Use two setpoints per channel. Assign one for startup overspeed (typically higher tolerance) and another for normal operation. The module switches automatically based on speed.

Q: Does this module log the speed at which a trip occurred?

A: Yes. The CC-PSP401 captures the exact speed that caused the trip in non-volatile memory. Maintenance can retrieve this data later for root cause analysis.