Emerson Micro Motion SGM - Discrete Output Problems; Time Period Signal (TPS) Output Problems

14.14 Discrete Output problems
Problem Possible causes Recommended actions
No discrete output • Output not powered
• Wiring problem
• Circuit failure
• Verify that the output loop is powered
externally.
• Check the power supply and power supply
wiring. See Check power supply wiring.
• Verify the output wiring.
• Contact customer service.
Loop test failed • Output not powered
• Power supply problem
• Wiring problem
• Circuit failure
• Verify that the output loop is powered
externally.
• Check the power supply and power supply
wiring. See Check power supply wiring.
• Verify the output wiring.
• Contact customer service.
Discrete output
readings reversed
• Wiring problem
• Configuration does not match wiring
• Verify the output wiring.
• Ensure that Discrete Output Polarity is set
correctly.
14.15 Time Period Signal (TPS) output problems
Table 14-4: TPS output problems and recommended actions
Problem Possible causes Recommended actions
No TPS output • The TPS output is not supported on this
device
• TPS wiring is connected to the wrong
terminals
• Output not powered
• External short or low input impedance
• Verify that the output loop is powered
externally.
• Check the power supply and power supply
wiring. See Check power supply wiring.
• Verify the output wiring.
• Contact customer service.
Loop test failed • Power supply problem
• Wiring problem
• Circuit failure
• Verify that the output loop is powered
externally.
• Check the power supply and power supply
wiring. See Check power supply wiring.
• Verify the output wiring.
• Contact customer service.
Troubleshooting Configuration and Use Manual
March 2021 MMI-20020954
138 Micro Motion Gas Specific Gravity Meters (SGM)