WEG PSRW, Руководство пользователя

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Signals
PSRW | 5-5
5
ATTENTION!
Is not allowed connect the OSSD like power supply.
Each OSSD is an independent double channel output and can be configurable individually.
Each OSSD perform a logic ‘AND’ between the inputs when a reset command is occurs. At this time the CPU
execute the logic according to its inputs configuration. The following reset configuration can be performed:
Mode Function Description
Automatic
Inputs related to
automatic reset
The system read the inputs and perform the “AND” logic. To
turn on the OSSD the respective RESET must be connected
to 24 V
Manual
Inputs related to
manual reset. Falling
edge or rising edge
The system reads the inputs and executes the “AND” logic.
To connect the OSSD, it is necessary a transition from “0” to
“1” or “1” to “0” at the reset terminal according to the edge
selected
Manual
Monitored
Inputs related to
monitored manual
reset The system read the inputs and perform the “AND” logic. To
turn on the OSSD is necessary a transition “0” - “1” – “0” at
reset terminal. The pulse mustn't be more than 3 seconds
Manual and
Automatic
Inputs related to
automatic reset and
manual reset, rising
edge only
The system reads the inputs and executes the “AND” logic.
To turn on the OSSD, it is necessary a transition from “0” to
“1” to validate the manual inputs. Then the + Vdc signal
must be maintained at the reset pin to validate the automatic
inputs
RST_n
OSSD_n
td
OSSD_n
RST_n
td
OSSD_n
RST_n
td
tm
(a) Manual Rising Edge (b) Manual Falling Edge (c) Time Pulse
td = Time to switch on (5 ms maximum)
tm = Time to monitored reset 50 ms < tm < 3 s
Figure 5.5: (a) to (c) OSSD operation