Bently Nevada 3500/32 125720-02+125712-01 4-Channel Relay Module

Frequently Asked Questions (FAQ)

Q1: What is the main application of this module?
A1: It is used to provide four independent relay outputs, supporting alarm drive logic and voting logic in the 3500 monitoring system.

Q2: How is the alarm logic configured?
A2: Alarm logic is configured via 3500 Rack Configuration Software using AND/OR logic with inputs from various monitor channels.

Q3: Is it suitable for hazardous areas?
A3: Yes, model 125720-02 is designed for use in functional safety systems and hazardous areas (Zone 2, SIL-compliant).

Q4: What is the maximum switching voltage supported?
A4: Standard systems: up to 250VAC or 125VDC. Hazardous systems: limited to 30VAC or 30VDC.

Q5: Can relay operation mode be changed?
A5: Yes, relays can be set to Normally Energized or Normally De-energized via DIP switch.

Q6: What indicators are available on the module?
A6: Three LEDs: OK (module status), TX/RX (communication), CH ALARM (channel alarm).

Q7: Are specific software versions required?
A7: Yes, minimum required software: Rack Config ≥ Rev 4.5, Data Acquisition ≥ Rev 2.4, Display ≥ Rev 1.4.

Q8: Does the module carry protection certifications?
A8: Yes, includes RoHS, EN61010-1, EN61000-6 series, electrical safety, and maritime standards.

125712-01 125720-02 3500/32 4-Channel Relay Module Bently Nevada

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