Manufacturer: Bently Nevada
Product No.: 3500/32-01-00 (125712-01 + 125720-01)
Country of origin:United States
Product Type: 4-Channel Relay Modules
Payment: T/T, Western Union
Weight: 320g
Dimensions: 29.2 cm x 15.4 cm x 10.2 cm
Shipping port: Xiamen
Warranty: 12 months
Providing programmable alarm relay outputs within the machinery protection framework, the Bently Nevada 3500/32-01-00 functions as a highly reliable 4-channel relay interface for the 3500 Machinery Protection System. This configuration comprises the 149986-02 spare control module and the 125720-02 spare relay output module. Each channel can be independently programmed with logic equations to trigger shutdowns or alert sequences based on status inputs from adjacent monitoring modules in the rack. The system relies on its integrated backplane connectivity to bypass external communication latencies, executing safety-critical operations with deterministic accuracy.
| Parameter | Specification Value |
|---|---|
| Manufacturer | Bently Nevada |
| Model Number | 3500/32-01-00 |
| Component Cards | 149986-02 (Control Module) + 125720-02 (I/O Module) |
| Number of Channels | 4 SPDT Relays |
| Relay Contact Rating (Resistive) | 5 A @ 240 VAC (50/60 Hz) / 5 A @ 30 VDC |
| Power Consumption | 5.8 Watts (typical) |
| Agency Approvals Option | -00 (None) |
| Relay Life Expectancy | 100,000 cycles at rated load |
| Operating Temperature | -30 degC to +65 degC |
| Country of Origin | USA |
| Shipping Weight (Calculated) | 2.20 kg |
| Package Dimensions (Calculated) | 29.2 cm x 15.4 cm x 10.2 cm |
| Terminal Designation | Relay Channel | Function Assignment |
|---|---|---|
| Ch 1 - NC / COM / NO | Relay 1 | Normally Closed / Common / Normally Open Contacts |
| Ch 2 - NC / COM / NO | Relay 2 | Normally Closed / Common / Normally Open Contacts |
| Ch 3 - NC / COM / NO | Relay 3 | Normally Closed / Common / Normally Open Contacts |
| Ch 4 - NC / COM / NO | Relay 4 | Normally Closed / Common / Normally Open Contacts |
The 149986-02 is the modernized, direct functional replacement for older legacy control card revisions such as the 125712-01. When swapping individual components rather than the entire 3500/32 assembly, confirm that the firmware version programmed in the 149986-02 is compatible with the existing rack backplane and the version of your 3500 System Configuration Software.
When switching inductive loads (such as heavy-duty interlock solenoids or intermediate auxiliary contactors), contact arc discharge can lead to contact welding or EMI generation that disrupts adjacent monitoring channels. Systems engineers must install external RC snubbers or flyback diodes across the inductive load to protect the relay contacts from high-voltage transient spikes.
Ensure to carefully audit the state of the relays during rack boot-up sequence. Configured as "Normally Energized," these relays will transition states momentarily when power is applied to the rack. Critical shutdown lines must be interlocked or temporarily bypassed during power cycling to prevent spurious machinery trips.
CRITICAL WARNING
Do not hot-swap the 125720-02 I/O module if high voltage is present on any field terminals. Fully isolate and de-energize all connected relay lines before removing the I/O module from the rear of the rack to avoid hazardous arcing or catastrophic personnel injury.
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Returns & Warranty
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| Country of origin |
United States
|
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