![Cattron MP48 Series Скачать руководство пользователя страница 40](http://html.mh-extra.com/html/cattron/mp48-series/mp48-series_user-manual_2574679040.webp)
Cattron™ MP96/48 Series Portable Remote Control Systems
User Manual
40
68C-MP96/48-RD-EN
Version 006
Figure 4: Operate (OPR) Contact Wiring
The Operate (OPR) relays are energized for the first time when the receiver/decoder has power applied, the
controller is turned on, and a matching address code is sent from the controller via an RF signal to the decoder.
The OPR relays are wired in series to the mainline (ML) contactor. Once the mainline is energized, a continuously
repeated valid signal must be received for function outputs to engage. If this signal is interrupted for any reason,
all function outputs will turn off. The mainline control in non-licensed systems is an exception. Because FCC rules
state that RF transmitters in non-licensed controllers must switch off within five seconds after the operator
releases the function button, OPR outputs are programmed to stay on for ten minutes after the last valid message
is received. During this time all ASO monitored outputs must stay off unless programmed otherwise or the ASO
sensing in the decoder will interrupt this hold up time, de-energizing OPRs.
In Figure 4, the Operate (OPR) contacts are wired directly to the mainline (ML) contactor. Turning the remote
controller on energizes the mainline contactor.
Referring to Figure 5, an auxiliary function may be used as a Reset (RST) output that will only be effective when
the Operate (OPR) relays have been closed.
Momentary closure of the Reset (RST) relay picks up the mainline (ML) contactor, which is maintained under
control of the OPRs. Thus, power is supplied to the controlled device. If an OPR opens, the mainline contactor
releases, removing power from the controlled device and stopping all motion.
Figure 5 shows the Operate (OPR) relays and optional Reset (RST) relay wired to control a mainline contactor.
This configuration requires the operator to activate the reset function on the controller after he or she has turned
the unit on. Once reset, the ML contactor remains energized until an OPR de-energizes.
Refer to the customized drawings provided with your system for OPR contact wiring details.
In addition to being energized by the presence of a signal from the controller, OPRs are under the supervision of
the Automatic Safety Override (ASO) circuit. The ASO circuit disables the OPRs (shutting down the controlled
machinery) if a critical or directional output relay is active when no corresponding command is being received
from the controller. In this event, no action is required by the operator to stop the equipment. The ASO safety
circuitry will stop motion automatically without any operator command when an output relay fault is detected.