TXP CLC Course
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Mode of Operation
Motor Drive
Standard Application:
• Plug-in Switchgear unit with 2 contactor relays (one per command
direction)
• Latching in the switchgear
• 1 NO/NC contact on main contactor
When latching in the switchgear, the command output (ALA or ALE) is reset
after the feed-back message (RME or RMA) arrives to reduce power losses on
the module. This function must be configured with parameter “BAV”.
Solenoid Valve
Standard Application:
• Plug-in Switchgear unit with:
2 contactor relays
or 1 contactor relay
• Latching in the control system
• Limit switches:
1 NO/NC contact on the contactor
or 1 NO/NC contact on the valve
When latching in the control system the command output (ALA or ALE)
is not
reset after the feed-back message (RME or RMA) arrives. This function is
configured.
The control command is permanently output by the module (configurable with
parameter “BAV” ) in the case of switchgear without latching. In this case, a
change in the command output (from “On” to “Off”) only takes place with the
counter (opposite) command.
The logic functions correspond to those of a motor drive. It is possible to have
applications where only one contactor relay is connected to the command output
(preferably on (ALE) but can be either on or off).
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