Model PD6300 Pulse Input Rate/Totalizer
Instruction Manual
65
Interlock Relay Operation Example
Relays 1 & 2 are configured to energize (their front panel LEDs are off)
when SW1 & SW2 switches (above) are closed. If the contacts to these
digital inputs are opened, the corresponding front panel LEDs flash
indicating this condition. The processes being controlled by the interlock
relay will stop, and will re-start only after the interlock relay is re-
activated by the digital inputs (switches).
Note: If multiple digital inputs are assigned to the same relay, then the
corresponding logic is (AND) – i.e. both switches must be closed to trip
the relay.
Scaling the 4-20 mA Analog Output (
Aout
)
The 4-20 mA analog output can be scaled to provide a 4-20 mA signal
for any display range selected.
No equipment is needed to scale the analog output; simply program the
display values to the corresponding mA output signal.
The
Analog Output
menu is used to program the 4-20 mA output based
on display values.
For instructions on how to program
numeric values see
Setting
Numeric Values
, page 36.
