MMS 6350/DP | EPRO Speed Measurement Card With PROFIBUS DP

System Overview

System DOPS

• Certified according to SIL3 – DIN EN 61508.
• Requires:
  • 3 x monitor MMS 6350 (/DP) (including firmware application no. 0)
  • Optional Profibus interface.

System DOPS AS

• Designed for Astom applications, also certified to SIL3.
• Requires:
  • 3 x monitor MMS 6350 (/DP) (including firmware application no. 2)
  • Optional Profibus interface.

Technical Data

• Signal Input:
  • Differential input, non-reactive, open-circuit and short-circuit proof.
• Input Voltage Range:
  • 0…30 Vdc
• Input Resistance:

  • 100 kOhm

• Sensor Signal Output:
  • Front socket SENS, decoupled, open-circuit and short-circuit proof, non-reactive, not calibrated, in phase with sensor signal.
  • Voltage Range: 0….4.1 Vpp
  • Amplitude: Sensor signal x (-0.15)
  • Accuracy: ±1% of full scale
  • Frequency Range: 0…16 kHz (-3 dB) ±20%
  • Permissible Load Resistance: > 1 MΩ
  • Internal Resistance: 10 kOhm
• Dynamic Outputs:
  • Front Socket Pulses: Processed input pulses output as TTL pulses, open-circuit and short-circuit proof, non-reactive.
  • Nominal Range: TTL level, 5 VSS
  • Frequency Range: 0 Hz…20 kHz
  • Permissible Load Resistance: > 1 MΩ
  • Internal Resistance: 5.1 kΩ
• Pulse Output:
  • Pulse-C, Pulse-E: Processed input pulses output via potential-free opto-coupler outputs.
  • Max. Voltage (DC7): +48 Vdc on collector
  • Max. Current with C-E Conducting: Current limitation on 25 mA
• Signal Conditioning:
  • Input signals standardized before processing. Characteristic value proportional to speed.
  • Max. Measuring Range: Limited to 20 kHz by max. input signal frequency.
  • Max. Speed: 65.535 rpm
  • Max. Number of Teeth: 255 (with Nmax = 4700 rpm)

Current Outputs

• Current Output 1 (Iout1):
  • 0/4….20 mA / 20….4/0 mA, electrically isolated.
  • Measuring Error: ±0.1% of full scale, 16-bit resolution.
• Current Output (Iout2):
  • (Not available for DOPS TS)
  • 0/4….20 mA / 20….4/0 mA with reference to internal GND.
  • Accuracy: ±0.1% of full scale, 16-bit resolution.
• Speed Zoom Function: Programmable for each current output.

Channel Supervision and Visualization

• Permanent signal check for speed sensors, comparing signal pulses and current output.
• Faults indicated by two green LEDs at monitor front.
• Output “Channel Clear”: Operating mode (open/closed circuit) freely selectable.
• Voltage Output:
  • +24 VDC = High state
  • 0 VDC = Low state
  • Max. Current: 25 mA (current limitation)

Binary Inputs

• Electrically Separated from System Ground
• 24 V – Voltage Inputs:
  • Signal Level: “Low”: 0….+3 V, “High”: +13….+32 V
  • Max. Input Voltage: +/- 35 V
  • Input Resistance: 6.8 kOhm
• External Blocking: Disable function/alarm outputs for service and maintenance.
• Reset Latch: To reset latched function and alarm outputs.
• Test Inputs: For testing monitoring functions with simulated test values.
• Limit Setting: Configurable limits with state visualization using yellow LED for function/alarm outputs.

Binary Outputs

• Six function outputs with separate function or limit settings, designed as 24V voltage outputs.
• Voltage Range Binary Outputs:
  • Supply of binary outputs via backplane, electrically isolated.
  • Supply Voltage Range: Uout “High” = +18….32 V, Uout “Low” = 0…+3.5 V
  • Iout Max: 25 mA
• Relay Outputs Backplane:
  • 2 out of 3 combinations of function outputs and Channel Clear.
  • Umax: 48 VDC, 20 Vrms AC
  • Imax: 4 AAC, DC
  • Max. Cable Cross-Section at Screw Terminals: 1.5 mm²

Communication Interfaces

• RS 232: Front socket for laptop connection for configuration and visualization.
• RS 485: Bus interface for communication with external systems.
• SUB-D Plug on Front Plate: For PROFIBUS-DP connection (optional).

Sensor Supply

• Decoupled and Electrically Isolated: Open circuit and short-circuit proof.
• Supply Voltage: 26.75 VDC
• Max. Current: 38 mA
• Residual Ripple: < 20 mVSS (at nominal current 20 mA)

Module Supply

• Two redundant inputs, decoupled via diodes, for nominal +24V with common ground.
• Current Consumption: Max. 250mA per card (with display).
• Permissible Voltage Range: 18….32 VDC according to IEC 60654-2.

Mechanical Design

• Format: Euro-Format (100 x 160 mm) according to DIN 41 494.
• Width:
  • With display: 14 TE (approx. 71 mm)
  • Without display: 6 TE (approx. 30 mm)
• Connector: DIN 41 612, type F 48 M.

Order Information

• Order Number:
  • MMS 6350/DP Speed measurement card with PROFIBUS DP: 9100 – 00065