GE F650 - Front Port and Cover Sealing System

GEK-106310AE F650 Digital Bay Controller 3-43
3 HUMAN INTERFACES. SETTINGS & ACTUAL VALUES 3.2 HUMAN MACHINE INTERFACE (HMI)
3
3.2.3.2 COMMAND PUSH BUTTON
The unit incorporates a command pushbutton located at the bottom right side of the HMi interface and at the top left for
Enhanced interface, with three options: local, remote, and off. The first option (LOCAL) allows executing operations in local
mode (HMI, front port, and rear COM2 port). The second option (REMOTE) allows operation execution only through
remote communications (COM1 and ETH_1/ETH2 or ETH_E/ETH_A/ETH_B (Depending on model)). The third option
(OFF) blocks the execution of operations. Each position is identified with an LED indicator, as follows:
LOCAL operations (green)
REMOTE operations (green)
OFF (red)
Press the command button to switch from local to remote operations mode and vice versa. OFF status (operation inhibited
for maintenance and safety) can be reach pressing the commands pushbutton during several seconds (local-remote-off
sequence).
The local-remote-off sequence can be also available through communications (see chapter 5.8), with a configurable signal
that can be set in the "Setpoint>Relay Configuration>Control Elements” screen.
3.2.4 FRONT PORT AND COVER SEALING SYSTEM
The following Figure 3–22: shows the detail of the front RS232 communication port and local/remote button access cover
sealing system in Non-enhanced displays. The sealing system is similar to the one used in energy meters, using wire and
plumb seal. High quality plastic have been used in the design to withstand extreme environmental conditions, both
mechanical and electrical, sun radiation, humidity, etc. in order to guarantee a long life for the unit.
Figure 3–22: DETAIL OF FRONT PORT AND COVER SEALING SYSTEM
Screen contrast regulator
Cover sealing system
Electrically isolated RS232 port
Local/remote Operations access