Precision Digital Corporation PROVU PD6363, Инструкция по эксплуатации

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P
RO
V
U
™ PD6363 Dual Analog Input Rate/Totalizer
Instruction Manual
40
Setting Up the Interlock Relay
(Force On) Feature
Relays 1-4 can be set up as interlock relays. To set
up the relays for the interlock feature:
1. Access the Setup
–
Relay
–
Action menu and set
the action to off.
2. In the Advanced features
–
User menu program
any of the digital inputs to Force On any of the
internal relays (1-4).
3. Connect a switch or dry contact between the +5V
terminal and the corresponding digital input
(dI-1 to dI-4) terminal.
Interlock Relay Operation
Example
Relays 1 & 2 are configured to energize (their front
panel LEDs are steady on) 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 outputs can be scaled to provide
a 4-20 mA signal for any display range selected. To
select the channel and source assignments the
analog outputs are assigned to, see
Analog Output
Source on page 47 .
No equipment is needed to scale the analog outputs;
simply program the display values to the
corresponding mA output signal.
The
Analog Output menu is used to program the
4-20 mA outputs based on display values.
Reset Menu (
reset
)
The Reset menu is used to reset the maximum (peak)
value of Ch-A and Ch-B rate (
rst Hi
), minimum
(valley) reading of Ch-A and Ch-B rate (
rst Lo
), both
high and low value of Ch-A and Ch-B rate (
rst HL
),
Ch-A total (
tot A
) or Ch-B total (
tot B
), Ch-A grand
total (
Gtot A
) or Ch-B grand total (
Gtot B
), both Ch-
A and Ch-B totals (
tot AB
), or both Ch-A and Ch-B
grand totals (
Gt AB
).
Manual Control Menu (
Contrl
)
The Manual Control menu is used to control the 4-20
mA analog output (Aout 1 only) and the relays
manually, ignoring the input. Each relay and analog
output can be programmed independently for manual
control. Selecting automatic control sets all relays and
analog output for automatic operation.
1 2 3 4 5 6
+5 I1 I2 I3 I4 O1
7 8
O2 O3
9 10
O4 G
DI 1-4 DO 1-4
5 VDC GND
SW2
SW1