Manual 26710V1 ProTechTPS Total Protection System
Woodward 97
Problem or diagnostic
indication
Possible Cause Suggested Actions
Configurable Input –
Discrete input not working
Wiring fault, terminal block
loose.
Configuration.
Signal source not working
correctly or not within
acceptable electrical
specifications.
Internally supplied wetting
voltage fault.
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
discrete input.
Check signal level and verify it is within
acceptable range per electrical
specifications.
Measure voltage from terminal 37 to
terminal 38 and verify it is 24 V ±10%. If
out of range, remove wiring and measure
again to verify the voltage source is not
being overloaded..
Configurable Input –
Analog Input not working
Wiring fault, terminal block
loose.
Configuration.
Signal source not working
correctly or not within
acceptable electrical
specifications.
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
analog input and the Lo, LoLo, Hi, HiHi
limits are set correctly..
Check signal level and verify it is within
acceptable range per electrical
specifications. Verify shield connection.
Trip relays not working Wiring fault, terminal block
loose.
Configuration.
External supplies.
Verify the wiring and terminal block
connections.
Using the Programming and Configuration
Tool or front panel, check to see if the trip
configuration is set correctly. Energize to
trip vs. de-energize to trip will invert the
polarity on the relays.
Check the power supplies that provide
voltage to the relay output. If using the 24
V EXT available from the ProTechTPS,
measure voltage between terminals 80, 81
and verify 24 V ±10%. If it is not, remove
the wiring from the 24 V EXT to unload the
output and measure again to verify the
voltage is not being overloaded.
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