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Optima 820 Series
3.3.3 Controls Breaker
There is a small pop-out breaker protecting the control system components. This isn’t used during normal operation. If it
were to pop out, try pressing it back in. If it fails to stay in, there may be failure in one of the controls which is shorted, or
is drawing excessive current. This would likely indicate the need for an RMA repair. Contact Marway support.
3.4
Remote Switching / EPO Option
The Remote Switching / EPO option includes the controls to interface to Marway’s Commander UCP 5000 Remote On/
Off/EPO panels and similar compatible panels. This panel is not required to operate the PDU. Refer to Marway’s Standard
Products Catalog for a list of the specific models which include this option.
Enable
Disable
Return
J 8
J 10
J 1
Controls
Breaker
J 9
PRESS
RESET
Ethernet Serial
Aux 1
Aux 2
Ethernet Serial
Aux 1
Aux 2
Values
Devices
Menu
Optima RCM
Main
Power
OFF
ON
EPO Only
Outlets Off
Normal
UCP Control Mode
3.4.1
Remote Mode Switch
The
UCP Control Mode
is a three-position switch used as a local override to the remote command system. The three
modes are labeled
EPO Only
,
Outlets Off
, and
Normal
. These are named from the perspective of having a remote
control panel connected to the system.
When there is a remote panel connected to the PDU:
•
Normal
(down position) is the normal operating mode. Outlets 1–8 are subject to the remote panel On/Off/EPO
controls (and, of course, the internal software-controlled relays).
•
Outlets Off
(center position) causes an internal contactor to disengage power from outlets 1–8. Outlet 9 is not
affected. The PDU will ignore the On/Off/EPO commands of the remote panel. Therefore,
Off
disconnects power to
outlets 1–8 even if the main breaker is switched on, and even if the internal software-controlled relays are switched
on.
•
EPO Only
(up position) causes the PDU to ignore the On/Off commands of the remote panel. The EPO signal is still
allowed.
When there is not a remote control panel connected:
•
EPO Only
(up position) is the normal operating mode. Effectively, this is a Local Control mode.
•
Outlets Off
(center position) causes an internal contactor to disengage power from outlets 1–8. Outlet 9 is not
affected. The PDU will ignore the On/Off/EPO commands of the remote panel. Therefore,
Off
disconnects power to
outlets 1–8 even if the main breaker is switched on, and even if the internal software-controlled relays are switched
on.
•
Normal
(down position) will behave like
Off.
(With no remote control panel connected, this label is a bit of a
misnomer as this would not be the normal position.)
