Table 4-4 Using Contact Input Option - Honeywell UDC2500 Product Manual

Operating the Limit Controller
How to Reset the Latching Relay
The latching relay cannot be reset until the PV input signal drops below the high set
point (High Limit) or rises above the low set point (Low Limit) value.
Press the
[MAN-AUTO RESET]
External Reset option is present.
Using the Digital Input Option (External Reset)
The Contact Input option detects the state of external contacts. On contact closure, the
controller will reset the latching relay if the controller has External Reset enabled. To
allow External Reset (contact input) use the procedure in Table 4-4.
Step Operation
1 Select Options
Set-up Group
2 Access the
External Reset
Prompt
3 Change a value
key or make contact closure of an external switch if the

Table 4-4 Using Contact Input Option

Press
Until you see:
SET UP
Upper Display = SET
Lower Display = OPTIONS
Until you see:
FUNCTION
Upper Display = ENAB
Lower Display = DIGIN1
To select ENAB in the upper display
or
UDC2500 Universal Digital Limit ControllerProduct Manual
Result
DIS
56