Monitoring and Operating the Controller
3/07 UDC3500 Universal Digital Controller Product Manual 239
4.23 Setting a Failsafe Output Value for Restart after a Power Loss
Introduction
If the power to the controller fails and power is reapplied, the controller goes through the
power up tests, then goes to a user configured FAILSAFE OUTPUT VALUE.
Set a Failsafe Value
Table 4-27 Procedure for Setting a Failsafe Value
Step Operation Press Result
1
Select Control
Set-up Group
Setup
Until you see:
Upper Display = SET
Lower Display = CONTROL
2
Select Failsafe
Function Prompt
Func
Loop 1/2
You will see:
Upper Display = (range)
within the range of the Output 0 to 100 for all output types
except Three Position Step
Three Position Step
0 = motor goes to closed position
100 = motor goes to open position
Lower Display = F’SAFE
3
Select a value
or
To select a failsafe output value in the upper display
4
Return to Normal
Display
Lower
Display
At power up, the output will go to the value set.
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