The Yokogawa TE32*B, also cataloged as the TE32 Terminal Board Module, operates as a dedicated hardware component for 32-point field signal distribution and cable termination within Yokogawa CENTUM platforms.
| Parameter | Specification |
|---|---|
| Model | TE32*B |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 1.2 kg (Base unit) / 3.0 kg (Shipping) |
| Dimensions | Standard terminal board footprint |
| Operating Temp | 0 to +50 deg C |
| Power Consumption | 5 VDC backplane bus power (passive termination) |
| Channel Capacity | 32 contact points |
| Terminal Type | M4 screw terminals |
| Dielectric Strength | 500 VAC for 1 minute |
| Insulation Resistance | 100 M ohm minimum at 500 VDC |
| Operating Humidity | 5 to 90 %RH (non-condensing) |
| Revision Style | Style B (*B) |
The terminal board routes incoming sensor wiring and field control signals directly to system I/O cards via dedicated multi-core KS series cables. The hardware design preserves signal purity during 4-20 mA HART loop protocol transmission by establishing low-resistance physical terminations across all 32 contact points. When paired with high-density temperature interface modules, the assembly maintains galvanic isolation between individual signal paths and chassis earth, preventing common-mode voltage spikes from skewing cold junction compensation (CJC) calculations.
Q: What screw torque specification should be applied to the M4 field wiring terminals?
A: Tighten M4 screw terminals to a nominal torque of 1.2 N m using a calibrated screwdriver. Over-tightening can strip internal threads, whereas under-tightening causes high electrical contact resistance and intermittent signal loss.
Q: How does the Style B revision improve noise immunity compared to earlier iterations?
A: Style B terminal boards feature upgraded dielectric insulation materials that deliver 500 VAC withstand voltage and a minimum of 100 M ohm insulation resistance at 500 VDC, preventing cross-channel leakage current in high-density control cabinets.
Mount the terminal board vertically onto the cabinet mounting plate using standard M5 chassis hardware. Strip field wires to the recommended length and crimp M4 spade or ring lugs onto each conductor prior to insertion. Secure all 32 wiring connections firmly onto the M4 screw terminals, verifying that no stray wire strands extend past the terminal insulation barriers. Connect the dedicated KS series interface cable between the terminal board connector header and the corresponding system I/O module slot, ensuring the connector latches click into place. Route field cables in separate wire ducts away from high-voltage AC power lines to avoid inductive noise coupling.
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