The Honeywell CC-PSP401 functions as a high-integrity Speed Protection Module specifically designed for the Experion PKS Series C platform. Specifically, this module conditions electrical pulses from up to four speed probes to compute real-time velocity and acceleration data. By implementing an onboard two-out-of-three (2oo3) voting scheme, the module eliminates single points of failure in critical trip circuits. Furthermore, the hardware provides an impressive overall loop latency of less than 40 mS from input change to relay triggering. Therefore, the Honeywell CC-PSP401 acts as the primary safety barrier for steam turbines, gas turbines, and large centrifugal compressors.
In terms of technical performance, the module utilizes specialized circuitry for rapid data acquisition across multiple signal types. Specifically, the Honeywell CC-PSP401 offers a dedicated 2.5 mS scan rate for pulse inputs, ensuring that transient over-speed conditions never go undetected. Meanwhile, the module accepts both active and passive magnetic pickups, supporting frequencies up to 25 kHz for high-speed gear teeth monitoring. Additionally, the unit incorporates 16-bit analog-to-digital converters for its eight auxiliary analog inputs. Consequently, the processor delivers the high-resolution feedback required for advanced anti-surge control and precise speed regulation loops.
The Honeywell CC-PSP401 combines monitoring and execution into a single, robust hardware footprint for enhanced reliability. For instance, the module includes four isolated digital outputs that can trigger over-speed trip relays directly on the module IOTA. Specifically, these gold-clad silver nickel contacts support voltages up to 230 VAC, providing a direct interface to heavy-duty industrial solenoids. Moreover, the hardware performs continuous field diagnostics, including reverse rotation detection and missing tooth analysis. Therefore, maintenance teams can identify probe failures or wiring issues immediately, reducing the risk of a "fail-to-safe" trip during normal plant operations.
| Feature | Specification |
| Speed Inputs | 4 Channels (Active or Passive) |
| Pulse Scan Rate | 2.5 ms |
| Digital I/O | 8 Inputs / 4 Outputs (Relay) |
| Analog I/O | 8 Inputs (16-bit) / 1 Output |
| Input Frequency | 1 Hz to 25 kHz |
| Loop Latency | ≤ 40 ms |
| Accuracy | 0.05% of reading |
Specifically, the Honeywell CC-PSP401 follows the standard Series C vertical form factor to optimize cabinet space and cooling. The module features galvanic isolation of ±1000 VDC for passive probe interfaces to ensure electrical noise does not affect speed calculations. Furthermore, the unit operates efficiently with a typical power consumption profile suited for redundant Series C power systems. Besides its speed functions, the module also supports non-incendive field power for hazardous area applications. Finally, the module weighs approximately 1.10 kg and mounts securely to its dedicated IOTA, which handles the physical termination of all field wiring.
First, verify that the Series C IOTA is correctly strapped for either active or passive probe excitation. Next, align the Honeywell CC-PSP401 with the mounting rails on the termination assembly and push firmly to seat the connectors. After that, configure the trip limits and voting logic within the Experion PKS C300 controller configuration environment. Furthermore, ensure that the analog output readback is calibrated if using the 4-20mA channel for speed transmission to external systems. Finally, perform a simulated speed test using a frequency generator to verify that the protection relays trip at the exact configured setpoints.
1 x Honeywell CC-PSP401 Speed Protection Module
Factory-Original Protective Anti-Static Shielding
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Q: Can the CC-PSP401 handle both active and passive speed probes?
Specifically, the Honeywell CC-PSP401 supports four channels that you can configure for either active (TTL/24V) or passive magnetic pickups.
Q: What is the fastest response time for a trip condition?
The module guarantees an overall loop latency of 40 mS or less from the moment a speed limit is exceeded.
Q: Does the module support redundancy for safety applications?
Yes, the Honeywell CC-PSP401 fully supports redundant configurations when installed on a redundant Series C IOTA.
Q: How many analog inputs are available for auxiliary monitoring?
The module provides 8 analog input channels with 16-bit resolution, typically used for anti-surge or temperature monitoring.
Q: What type of diagnostics does the module perform on speed probes?
Specifically, the module detects zero speed, reverse rotation, deformed teeth, and open wire conditions for all connected sensors.
| Brand Name | Honeywell |
| Model No. | CC-PSP401 |
| Product Type | Speed Protection Module (SPM) |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
