Relay Outputs - Honeywell DCP 50 Product Manual

2.3.5 Linear Inputs
For linear mA input ranges, connection is made to Terminals 4 and 6 in the polarity
shown in Figure 2-4. For linear mV and V ranges, connection is made to Terminals 4
and 5 in the polarity shown in Figure 2-4. For details of the linear input ranges
available, refer to Appendix A.
2.3.6 Remote Run/Hold Input
With this option fitted, Terminals 11 and 12 are used for external Run/Hold control of
the currently-selected program; this has an effect identical to that of the front panel
RUN key. These terminals may be connected to (a) the voltage-free contacts of a
switch or relay, or (b) a TTL-compatible voltage. This is an edge-sensitive input for
which the following convention has been adopted:
For TTL input, OFF = logic 1 and ON = logic 0
Fot a voltage=free input, OFF = open and ON = closed
Program control is as follows:
OFF-ON transition:
ON-OFF transition:
NOTE: When this input is used, the front panel RUN key can be used
only to abort a program. Powering-up the Controller Programmer whilst
this input is ON will not cause a program to run. The RS485 Serial
Communications option and the Remote Run/Hold option are mutually
exclusive.
2.3.7

Relay Outputs

The contacts are rated at 2A resistive at 120/240V AC.
2.3.8 DC Pulse Outputs
These outputs produce a time-proportioned non-isolated DC signal (0 - 4.2V nominal
into 1k minimum).
Ω
The currently-selected program will run (or will
resume running if it is currently held).
The currently-running program will be held.
2-5