Triconex 3625 Digital Input Module (3009N)
1. Safety Mandates
CRITICAL REQUIREMENTS:
- Perform hazard analysis per LOPA before installation
- Lockout/Tagout main controller power (Tricon CX chassis)
- ESD Protection: Class 0 per ANSI/ESD S6.1 (wrist strap & grounded mat)
- Never bypass diagnostics – violates FMEDA data (PFDavg = 3.2E-09)
2. Module Installation
Mechanical Integration:
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① Verify slot compatibility:
- Chassis: 3008/3101/3805E (TMR bus position only)
- Adjacent spacing: ≥1 slot from analog modules
② Slide module into backplane until ejector locks:
- Torque retention screws: 0.6 N·m (5.3 lb-in)
- Backplane connector alignment tolerance: <0.3mm
③ Grounding:
- Connect chassis earth lug (M4 screw) to busbar
- Resistance: <1Ω to plant ground grid
3. Field Wiring (SIS Grade)
Terminal Block X1 (Removable FTA):
| Terminal | Signal | Specification |
|---|---|---|
| 1-16 (odd) | Field Input + | 48VDC max (SELV/PELV) |
| 2-16 (even) | Common Return | Isolated RTN (Grouped) |
| SHLD | Shield Drain | Gland-to-module continuity |
► Wiring Rules:
- Separation: >300mm from AC cables per EN 61000-6-2
- Cable Type: Belden 9501 or equivalent (shielded twisted pair)
- IS Barriers: Required for Zone 1 installations (Entity Params: Ui=250V, Ii=10mA)
4. Configuration
Using TriStation 1131 v4.9+:
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graph LR
A[Create DI object] --> B[Set parameters:<br/>• Filter time: 1-255ms<br/>• Diagnostics: ON<br/>• Force Disable: OFF]
B --> C[Assign hardware:<br/>• Slot: XX<br/>• Channel: 1-16]
C --> D[Download to TCM]
Voting Logic: Default TMR (3-2-0 for de-energize to trip)
5. Diagnostic Verification
Power-On Sequence Check:
| LED | Normal State | Fault State |
|---|---|---|
| OK (Green) | Solid | Off/Flashing |
| ACT (Amber) | Channel activity | Stuck ON/OFF |
| FLT (Red) | Off | Solid (Module fault) |
Diagnostic Tests:
- Open Wire Test: Inject >100kΩ resistance → FLT LED flashes
- Cross-Channel Check: Apply voltage to adjacent terminals → TCM alarms
- Pulse Test: Auto-executed every 4 hours (bypass inhibit required)
6. Maintenance Procedures
| Activity | Interval | Tool/Method |
|---|---|---|
| Contact resistance measurement | 12 months | 4-wire Kelvin (max 0.2Ω) |
| Dielectric strength test | 36 months | 500VDC @ 5mA (chassis-field) |
| Firmware update | As needed | TriStation Online Update |
► Spare Parts:
- Replacement module P/N: 9662-3625
- FTA Kit: 9663-310A
7. Critical Compliance Notes
- SIL Validation: Require re-certification after hardware modification
- Cold Spare Storage: Humidity-controlled (<40% RH) ESD packaging
- Failure Reporting: Submit FORM 3625-FR to Schneider-Electric via SIS Portal
- DO NOT mix revisions: Module firmware must match TCM version ±1
3625 TRICONEX PDF
3625 TRICONEX
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