Monitoring and Operating the Controller
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
1
Select Control
Set-up Group
2
Select Failsafe
Function Prompt
3
Select a value
4
Return to Normal
Display
226
Press
Until you see:
Setup
Setup
Upper Display = SET
Lower Display = CONTROL
You will see:
Func
Upper Display = (range)
Loop 1/2
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
To select a failsafe output value in the upper display
or
At power up, the output will go to the value set.
Lower
Lower
Lower
Display
Display
Display
UDC3500 Universal Digital Controller Product Manual
Result
10/05