AMETEK 2120 PLC Interface Module - Manual (Page 40)

36 Installation and Programming Manual
Chapter 4: Programming
Enter 2110
403
Enter lower
end limit
Enter either
0 or 1
402
The monitor displays the function’s current value.
3. Enter the new value. Select the enter key.
NOTE: To temporarily override the lower end limit relay, see Relay Override.
Relay State (402)
The Relay State function is used to program the Interface Module’s upper and lower limit relays
to either energize or de-energize when their programmed value is reached or exceed. Either a 0
or 1 can be programmed in this function. Entering 0 will cause the relays to energize during
normal machine operation, and de-energize when a limit is exceeded or when an error occurs.
Entering a 1 will cause the relays to de-energize during normal machine operation, and energize
when a limit is exceeded or when an error occurs. The default for this function is 0. To change
the state of these relays, perform the following steps:
1. Select the function key.
The monitor displays “F-----”
2. Enter function number 402. Select the enter key.
The monitor displays the function’s current value.
3. Enter either a 0 or 1. Select the enter key.
Relay Override (403)
The Relay Override function is used to temporarily override end limit relays after they have
actuated due to an overtravel condition. (For more information, see Upper End Limit and Lower
End Limit.) To override either the upper or lower limit relays, perform the following steps:
1. Select the function key.
The monitor displays “F-----”
2. Enter function number 403. Select the enter key.
The monitor displays “000000”
3. Enter the override code 2110. Select the enter key.
(F)
(F)