Model Interpretation

3617E：8CH commoned supervised 48VDC TMR high-power DO; E=enhanced full-diagnostic version; matching base only:3617R; commoned field power topology, high-current design distinct from 24VDC(3608E/3615E) & 115VAC(3611E/3613E) output modules。

Technical Parameters

Electrical Spec

Channel：8 common-grouped supervised sinking output, common field power bus

Nominal field voltage：48VDC, operating range 36~72VDC

Per-channel continuous rated：2A resistive load, peak surge 10A/10ms; minimum load ≥100mA for open-circuit diagnostic validity

On-state voltage drop＜2.8V; off-state leakage≤4mA

Individual channel fast fuse integrated on 3617R terminal base for short-circuit protection

Field-to-backplane galvanic isolation：1500VDC per channel

Backplane power consumption≈12W, full wire break/open-load/short-circuit real-time loop diagnosis

Safety & Reliability

2oo3 TMR triple hardware voting, single slice fault cannot cause spurious actuation; IEC61508 SIL3, TÜV, UL, FM, CE certified

Diagnostic fault coverage＞99.5%, non-intrusive periodic pulse test without field device misoperation; SOE resolution≤40ms; typical MTBF＞125000Hrs

Mechanical & Ambient

Single 3U slot module; dimension 115×32×190mm, net weight≈0.95kg

Operating temperature：−40℃~+70℃; storage −55℃~+85℃; humidity 5%~95%RH non-condensing

Front panel LED: PASS(module healthy), FAULT(channel/module fault), per-channel status indicator

Core Functions

High-power 48VDC safety driving for heavy-duty ESD shutdown solenoids and DC contactors; TMR redundant circuit eliminates false tripping from internal single component failure; online hot swap without SIS system stop; continuous loop monitoring detects cable fracture/missing load/short fault; diagnostic fault data uploaded to TriStation engineering platform for remote troubleshooting; unified field wiring termination via matched 3617R terminal base。

Application Scenarios

Offshore platform ESD 48VDC shutdown solenoid control; refinery large HIPPS DC isolation actuator drive; petrochemical flare heavy-load DC interlock contactor output; thermal power plant turbine emergency trip DC relay loop; coal chemical plant critical safety cut-off valve control。

Model Distinction

3617E：8CH commoned 48VDC high-power supervised DO+3617R |3615E：8CH commoned 24VDC low-power sinking DO+3615R |3608E：16CH isolated 24VDC sourcing DO+3608R