Overview

The XM-320 module (catalog number: 1440-TPS02-01RB) is designed to measure turbine supervisory position metrics, including axial position (thrust), valve position, differential expansion, and case expansion.

Specifications

Inputs

• Channels: 2 channels
• Signal Types:
  • Eddy current transducer signals
  • Linear variable differential transformer (LVDT)
  • Voltage signals from any position measurement sensor
• Transducer Power: Isolated 24V, configurable for +24V or -24V wiring
• Voltage Range: Selectable in software between -24V and +24V
• Sensitivity: User-configurable in software
• Input Impedance: > 100 kΩ

Outputs

• 4…20mA Outputs:
  • Two isolated outputs
  • Max load: 600 Ω
• Buffered Outputs: Two outputs (one per channel)

Indicators

• Module Status: Red/green
• Network Status: Red/green
• Channel 1 Status: Yellow/red
• Channel 2 Status: Yellow/red
• Setpoint Multiplier Status: Yellow
• Relay Status: Red

Communication

• DeviceNet Network:
  • Standard DeviceNet protocol for all functions (module power provided independently)
  • EDS file available for support with most DeviceNet-compliant systems
  • Automatic communication rate setting: 125, 250, or 500 Kbps
  • Configurable I/O Poll Response message for space optimization within scanner input tables:
    • Selectable poll response assembly
    • Selectable poll response size (bytes)
• Serial Communication:
  • RS-232 via mini-connector or terminal base unit
  • Fixed communication rate of 19.2 Kbps
  • Local configuration via Serial Configuration utility

Measurement Modes

• Normal: Two independent channels
• Head-to-head
• Radial cancel

Delta Time Buffer

• Number of Records: 2048
• Delta Time Interval: 1 to 3600 seconds
• Trigger Mode: Triggered by relay activation or a DeviceNet command from a controller or host

Alarms

• Number of Alarms: Two alarm and danger pairs
• Operators:
  • Greater than
  • Less than
  • Inside range
  • Outside range
• Hysteresis: User-configurable in software
• Startup Inhibit/Setpoint Multiplication:
  • Period: 0 to 1092 minutes, adjustable in 0.1-minute increments
  • Inhibit/multiplication function: Multiply by N (0 to 10, 0 = Disarm)

Relays

• Number of Relays:
  • Single on-board relay with two sets of DPDT contacts (2 Form C)
  • Four additional relays with XM-441 expansion relay module
  • Four virtual relays (status can be used by remote control systems or XM-440 master relay module)
• On-board Relay Rating:
  • Max Voltage: 125V DC, 125V AC
  • Max Current: 3.5 A (derates to 2 A at 65°C / 149°F)
  • Max Power: 60 W (DC), 62.5 VA (AC)
• Failsafe Options:
  • Normally energized (failsafe)
  • Normally de-energized (non-fail-safe)
• Latching Options:
  • Latching
  • Non-latching
• Time Delay: Adjustable from 0 to 25.5 seconds in 100 ms increments
• Logic: Single or paired AND or OR logic for alarm triggers
• Reset Options:
  • Local reset switch on top of module
  • Remote reset switch via terminal base
  • Digital reset command via serial or DeviceNet interface

Configuration

• Non-volatile Configuration:
  • Configuration is stored in non-volatile memory and is loaded on power-up
  • Configuration can be deleted only by module reset via serial or DeviceNet interface

Power

• Module Power: 24V DC
• Power Consumption:
  • Max: 200 mA
  • Typical: 165 mA
• Heat Production:
  • Max: 5.28 W (18 BTU/hr)
  • Typical: 3.96 W (13.5 BTU/hr)

Physical Specifications

• Terminal Base: 1440-TB-B
• Dimensions (H x W x D): 97 x 94 x 94 mm (3.8 x 3.7 x 3.7 in.)