Product Description
Product Overview
| Parameter | Details |
|---|---|
| Part Number | 3701/55-01-01 |
| Product Name | 3701/55 ADAPT ESD (Emergency Shutdown Device) |
| System Type | Triple Modular Redundant (TMR) Safety PLC with Overspeed Detection |
| Agency Approval | CSA/NRTL/C (Class I, Div 2, Zone 2) |
| Relay Option | Standard Relay Module |
| Applications | Emergency shutdown of rotating machinery (steam, gas, hydro turbines, expanders, process equipment) |
Inputs
| Parameter | Value |
|---|---|
| Discrete Inputs (DI) | 32 channels, 12 configurable as DI or 4-20 mA analog inputs |
| Speed Inputs | 6 channels (2 per CPU module, total 6 across 3 CPUs) |
| Analog Inputs | 12 channels, 4-20 mA ±1%, configurable from DI array |
| Discrete Input Specs | Two-terminal dry contact, polarity independent; Closed: 57 kΩ max; Open: 187 kΩ min; Low Voltage: 1.2 Vdc max; High Voltage: 2.9 Vdc min; Internal Wetting: 10-15 Vdc; Input Resistance: 150 kΩ typical; Fault Tolerance: ±40 V |
| Analog Input Specs | Polarized terminals (Pos B/Neg A); Operating Frequency: 0-159 Hz; Common Mode Range: ±32 V; Differential Range: 0-25 mA; Fault Tolerance: ±40 V |
| Proximity Speed Inputs | Input Voltage: 0 to -24 Vdc; Transducer Power: -24 Vdc (-23.5 to -24.75 Vdc); Max Current: 30 mA with fold-back; Frequency: 3 Hz-10 kHz; Min Pulse Amplitude: 1.0 Vpp; Max Pulse Amplitude: 24 Vpp; Error: ±0.1 RPM (<100 RPM), ±1.0 RPM (<10k RPM), ±0.01% FSR (>10k RPM); OK Range: -17 Vdc to -1.5 Vdc |
| Magnetic Pickup Speed Inputs | Min Pulse Amplitude: 1.0 Vpp; Max Amplitude: 80 Vrms; Frequency: 2 Hz-20 kHz; Error: ±0.1 RPM (<100 RPM), ±1.0 RPM (<10k RPM), ±0.01% FSR (>10k RPM); OK Range: 0 to 30 kΩ |
Outputs
| Parameter | Value |
|---|---|
| Relay Outputs | 3 relay modules, each with 5 relays (total 15 relays); 4 relays per module configurable (2 independent, 2 configurable as independent or 2oo3 voted); 1 relay per module for OK/NOTOK status |
| CH 1/2 Relay Contacts | Configurable: 1oo1 or 2oo3 voting; SPDT; 5A/250 Vac/1500 VA max; 5A/250 Vdc/150 VA max; Normally Open/Closed; Energize/De-energize; Transition Time: 8 ms; Min Switch Current: 12 Vdc/100 mA |
| CH 3/4 Relay Contacts | Independent 1oo1 voting only; SPDT; 5A/250 Vac/1500 VA max; 5A/250 Vdc/150 VA max; Normally Open/Closed; Energize/De-energize; Transition Time: 8 ms; Min Switch Current: 12 Vdc/100 mA |
| OK Relay Contact | Normally Open; De-energize to trip; SPDT; 5A/250 Vac/1500 VA max; 5A/250 Vdc/150 VA max; Transition Time: 8 ms; Min Switch Current: 12 Vdc/100 mA |
| 4-20 mA Recorder Outputs | 2 per CPU module (total 6); Internally powered; Full Scale: 4-20 mA; Max Error: 0.1 mA; Max Loop Impedance: 750 Ω |
Communication
| Parameter | Value |
|---|---|
| Ethernet Ports | 6 ports (2 per CPU module); 10/100 Mbps |
| Protocol | TCP/IP |
| Addressing | DHCP and Static IP |
| Compatibility | LAN/WAN |
| Configuration | Password protected |
| Time Synchronization | NTP |
Power Requirements
| Parameter | Value |
|---|---|
| Input Range | 18-36 Vdc |
| Power Consumption | 24 W typical, 35 W maximum |
| Hazardous Area Power | Must comply with local standards |
LED Indicators
| Parameter | Value |
|---|---|
| Module OK LED | Green: OK; Off: NOTOK (self-test failure or input out of range); 2 Hz: Un-configured |
| Protection Fault LED | Red: Fault present; Off: Run mode |
| CPU Test LED | Off: Run mode; 2 Hz: Test mode active |
| CPU Attention LED | Green: New event list entry; Off: No entries |
| CPU Alarm LED | Off: No alarms; 2 Hz: Single alarm; On: Multiple alarms |
| CPU TX/RX LEDs | On: Active link; Off: Inactive link |
| Power LED | On: Power present; Off: Power off |
| Relay Channel LED | On: Active (tripped); Off: Inactive; Blinking: Voltage check failure |
Logic Processing
| Parameter | Value |
|---|---|
| Max Logic Blocks | 500 |
| Input to Output Decision Time | 2 ms nominal logic processing, 8 ms relay toggle |
| Max Contact Closure Delay | 30 ms (detection to new relay state) |
| Input Blocks | Discrete: Configurable inverting logic; Speed: 6 high/low setpoints + Not OK; Analog: 6 high/low setpoints + Not OK |
| Logic Blocks | Multiple-input AND, OR, XOR; Inverter; 8-input M-out-of-N; RS Flip-Flop; Timer (high/low transition or pulse) |
| Output Blocks | Relay Output: Configurable 1oo1 or 2oo3 |
Physical
| Parameter | Value |
|---|---|
| System Dimensions (LxWxH) | 25.4 x 30.48 x 18.0 cm (10.0 x 12.0 x 7.1 in) |
| Processing Module Dimensions (LxWxH) | 15.8 x 6.1 x 15.8 cm (6.2 x 2.4 x 6.2 in) |
| Relay Module Dimensions (LxWxH) | 15.8 x 2.8 x 15.8 cm (6.2 x 1.1 x 6.2 in) |
| System Weight | 8.8 kg (19.4 lb) |
| Processing Module Weight | 1.2 kg (2.6 lb) |
| Relay Module Weight | 0.6 kg (1.3 lb) |
| Construction | Aluminum chassis, cast aluminum module cases, black powder coat finish |
Environmental
| Parameter | Value |
|---|---|
| Operating Temperature | -30°C to +65°C (-22°F to +149°F) |
| Storage Temperature | -45°C to +85°C (-49°F to +185°F) |
| Relative Humidity | 0% to 95%, non-condensing |
| Vibration | IEC 60068-1: 3g @ 3-57 Hz; 5g @ 57-500 Hz |
| Shock | IEC 60068-2: 15g for 11 ms (operational & non-operational) |
Compliance and Certifications
| Parameter | Value |
|---|---|
| FCC | Complies with Part 15 |
| EMC | EU Directive 2014/30/EU; EN 61000-6-2, EN 61000-6-4 |
| Electrical Safety | CAN/CSA-C22.2 No. 61010-1-12; UL 61010-1; EU Directive 2014/35/EU; EN 61010-1 |
| RoHS | RoHS Directive 2011/65/EU |
| Maritime | ABS 2009 Steel Vessels Rules |
| Machinery Safety | EU Directive 2006/42/EC; IEC 62061-1, IEC 61508 |
| Hazardous Area | CNRTLUS: Class I, Zone 2, AEx nA nC/ec nC IIC T4 Gc; Class I, Div 2, Groups A-D; ATEX/IECEx: II 3 G, Ex nA nC/ec nC IIC T4 Gc; T4 @ -30°C to +65°C |
| Functional Safety | SIL 3 certified per IEC 61508 |
Ordering Information
| Parameter | Value |
|---|---|
| Accessories | Terminal Base: 289761-01; CPU Module: 323174-01; Relay Module: 323073-01; Gold-plated Relay Module: 323073-02; Terminal Block: 289036-01; Config Software: 103M1345-01 |
| Software Requirements | Bently Nevada Monitor Configuration Software, Windows 7 (32/64-bit) |