Woodward ProTech TPS - User Manual

Questions and Answers

F
Frederick Hall Jr.Aug 21, 2025
How to fix Woodward Power distribution unit power supply inputs that are not working?
- M
  Michael AdamsAug 21, 2025
  If the power supply inputs on your Woodward Power distribution unit aren't working, and you see a power supply input alarm, start by checking the wiring and terminal block connections to ensure they are secure. Then, verify that the power source breaker or fuse is not open. If only one power supply is connected, connect the second one. Also, check the input voltage level to ensure it's within the acceptable range according to the electrical specifications, and confirm that the power supply has the appropriate rating to power the ProTechTPS. You can also check for 'Power Supply 1 or 2 Fault' on the front panel by pressing the VIEW button under the ALARM LED.
J
Jennifer PowersSep 3, 2025
Why is the analog output not working on my Woodward Power distribution unit?
- D
  David MendezSep 3, 2025
  If the analog output on your Woodward Power distribution unit is not working, first verify the wiring and terminal block connections. On the front panel, check the Monitor Analog Output Menu and verify that the analog output is reading an expected output value. Measure the current from terminal 64 and verify it corresponds to the previous step. Verify the load on the analog output is within the electrical specifications. Using the Programming and Configuration Tool or front panel, verify the scaling is correct.
J
Joyce RandallSep 1, 2025
What to do if programmable relay output is not working on Woodward Power distribution unit?
- C
  carrlaurenSep 1, 2025
  If a programmable relay output on your Woodward Power distribution unit is not working, first verify the wiring and terminal block connections. Using the Programming and Configuration Tool, check to see if the polarity is set correctly and the correct internal signal is selected to drive the output. Check the power supplies that provide voltage to the relay output. If using the 24 V EXT available from the ProTechTPS, measure the voltage between terminals 80 and 81 to verify it's 24 V ±10%. If it's not, remove the wiring from the 24 V EXT to unload the output and measure again to verify the voltage is not being overloaded.
E
Erin WatkinsAug 31, 2025
How to troubleshoot a non-working configurable analog input on a Woodward Power distribution unit?
- C
  carneyrachelAug 31, 2025
  To troubleshoot a configurable analog input that is not working on your Woodward Power distribution unit, first verify the wiring and terminal block connections. On the front panel, check the Configurable Inputs Monitor Menu and verify the correct analog input level is displayed. A “signal out of range” indicates the input is less than 2 mA or greater than 22 mA. Using the Programming and Configuration Tool, verify the input is configured as an analog input and the Lo, LoLo, Hi, HiHi limits are set correctly. Check the signal level and verify it is within the acceptable range per the electrical specifications. Verify the shield connection.
J
judy79Aug 29, 2025
What causes MODBUS to not work on a Woodward Power distribution unit and how to fix it?
- M
  Matthew BoyleAug 29, 2025
  If MODBUS is not working on your Woodward Power distribution unit, verify the wiring and terminal block connections. Ensure the HI and LO wires are terminated to the correct terminals for RS-485, and likewise for TXD and RXD for RS-232. Also, verify the termination jumpers are installed for RS-485 mode. Using the Programming and Configuration Tool or front panel, verify the correct settings are selected.
J
Jillian MorrisAug 27, 2025
How to troubleshoot a non-working configurable discrete input on a Woodward Power distribution unit?
- D
  Donald PhelpsAug 27, 2025
  To troubleshoot a configurable discrete input that is not working on your Woodward Power distribution unit, first verify the wiring and terminal block connections. On the front panel, check the Configurable Inputs Monitor Menu and verify the logic state is correct. Using the Programming and Configuration Tool, verify the input is configured as a discrete input. Check the signal level and verify it is within the acceptable range per the electrical specifications. Measure the voltage from terminal 37 to terminal 38 and verify it is 24 V ±10%. If it is out of range, remove the wiring and measure again to verify the voltage source is not being overloaded.
D
danielharrisAug 27, 2025
Why is my Woodward Power distribution unit dedicated discrete input not working?
- S
  Sandra PollardAug 27, 2025
  If a dedicated discrete input (Start, Reset, or Speed Fail Override) on your Woodward Power distribution unit isn't working, first verify the wiring and terminal block connections. On the front panel, check the Dedicated Discrete Inputs Monitor Menu and verify the logic state is correct. Check the signal level to ensure it's within the acceptable range per the electrical specifications. Measure the voltage from terminal 1 to terminal 81 and verify it is 23 V ±2 V. If it's out of range, return the unit to Woodward.
S
Scott ReyesAug 25, 2025
What to do if trip relays are not working in Woodward Power distribution unit?
- D
  danny76Aug 25, 2025
  If the trip relays on your Woodward Power distribution unit are not working, start by verifying the wiring and terminal block connections. Then, using the Programming and Configuration Tool or the front panel, check to see if the trip configuration is set correctly; consider that energize to trip versus de-energize to trip will invert the polarity on the relays. Check the power supplies that provide voltage to the relay output. If you're using the 24 V EXT available from the ProTechTPS, measure the voltage between terminals 80 and 81 to verify it's 24 V ±10%. If it's not, remove the wiring from the 24 V EXT to unload the output and measure again to verify the voltage is not being overloaded.
M
Mrs. Stephanie MaciasAug 23, 2025
What to do if the speed input is not working on my Woodward Power distribution unit?
- A
  Amanda SullivanAug 23, 2025
  If the speed input on your Woodward Power distribution unit is not working, first check the wiring and terminal block connections to ensure they are secure. Next, on the front panel, check the Speed Input Configure Menu and verify all proper configuration options are selected. Ensure there are no alarms or faults that may indicate a setup problem, such as open wire trip, speed lost, or speed fail. Verify the input signal levels are within the electrical specifications and check the shield connections. If you're using an active probe, disconnect it and measure the voltage from terminals 69 to 71; it should be 24 V ±10%. Then, reattach the probe and measure again to verify it's not overloading the voltage provided by the ProTechTPS.