Triconex 3625 TMR Analog Input Module
Key Specifications
Parameter | Value |
---|---|
Channels | 16-channel differential (3× independent) |
Input Range | 0-10V, ±10V, 4-20mA (jumper-selectable) |
Accuracy | ±0.05% FS @ 25°C |
CMV Rejection | 140 dB @ 60Hz |
TMR Voting | 2oo3 mid-value selection |
Update Rate | 50 ms/channel |
HART Support | Revision 7 compliant |
Installation Procedure
Step 1: Mechanical Mounting
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1. Install in Tricon Chassis (e.g. 3700A/3805E)
• Slot compatibility: All non-comm slots
2. Torque backplane screws: 0.6 Nm ±0.05 Nm
3. Grounding: Connect chassis to earth via 6 AWG wire
- Impedance <0.1Ω to grounding bus
Step 2: Field Wiring
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[Termination Diagram]
CH1+ ───┤ IS Barrier ├─── +Field
CH1- ───┤ (e.g. 7868)├─── -Field
└─── 24V Ex ─┘
[Requirements]
• Shielded twisted pair (Belden 8761/equivalent)
• Max cable length: 250m (500m with repeater)
• Separation: ≥300mm from AC power cables
Configuration
DIP Switch Settings (Module Front)
Switch | Position | Function |
---|---|---|
SW1 | ON | HART enable |
SW2-3 | OFF-ON | 4-20mA range |
SW4 | OFF | Burnout detect ↑ |
TRISTATION 1131 Parameters
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AI_BLOCK_CONFIG:
FILTER_TIME = 2.5 ; seconds
OUT_OF_RANGE_ALM = ±3%
VOTING_DISCREPANCY = 0.5% ; Tolerance
Safety-Critical Operations
Hot-Swapping Protocol
- Place chassis in PROGRAM mode
- Execute command:
TRICON STOP
- Wait for LED status:
- Green OFF + Red FLASH (safe to extract)
Ground Fault Detection
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Test Procedure:
1. Apply 25V AC between field wire and earth
2. Verify alarm: GFx bit in %S0003
3. Trip threshold: >5mA leakage
Diagnostics & Indicators
LED | State | Fault Condition |
---|---|---|
OK | Red | Channel disagreement |
ACTIVE | Green flashing | Firmware update in progress |
COMM | Amber solid | TMR comm sync failure |
Troubleshooting Matrix
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Fault Code: E105
Cause : Channel deviation >0.5% for 5s
Action : 1. Verify sensor calibration
2. Check HART multiplexer
3. Replace faulty sub-module

Certification & Compliance
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- Functional Safety : IEC 61508 SIL 3 (HW Fault Tolerance=1)
- EMC : EN 61326-1 Class A (Industrial)
- Hazardous Areas : ATEX II 3G Ex ec [ia] IIC T4 Gc
- Seismic Rating : IEEE 693-2005 (High)
3625 TRICONEX PDF
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