WEG MMW03-M22CH, User Manual

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24 | Energy Analyzer - MMW03-M22CH
Amplitude
High limit
Hysteresis %
Hysteresis %
Low limit
Time
C
B
A
Figura 3.6: Alarm Example
„
A low limit alarm occurs at point A.
„
Alarm disappears at point B.
„
A high limit alarm occurs at point C.
„
Alarm disappears at point D.
3.5.3 Alarm Relay Settings Menu (RELAYS) (MMW03-M22CH)
Use this menu item to set the conditions of the alarm relays. You can set both alarm relays to the following positions:
„
OFF : Relay does not energize in an alarm condition;
„
LO : Relay energizes when a low limit alarm occurs;
„
HI : Relay energizes when a high limit alarm occurs.
Related relay is de-energized when the alarm condition ends. Please see Table 3-3 for the menu tree and SECTION
5 for the factory default settings.
3.5.4 Demand Period Setting Menu (DEMAND)
Use this menu item to setup the demand period. At the end of the specified period, demand values are calculated
in a periodic cycle.
Please see Table 3-3 for the menu tree and SECTION 5 for the factory default settings.
3.5.5 RS485 Settings Menu (RS485)
Use this menu item to set the baudrate, slave ID and parity control settings in RS485 communication. Please see
Table 3-3 for the menu tree and SECTION 5 for the factory default settings.
Baudrate (bAud): Communication Signal speed is expressed with "baud" in terms of units. The baud rate can
be changed in the adjustment range.
Slave ID (Id): RS485 communication is working on the basis of one or more slave devices communicate with
one master. MMW03-M22CH, as a slave in the RS485 communication responds to queries made by the master.
If the device is slave match in this communication are set in the slave ID Menu.
Parity Check (PrtY): It is a control mechanism for data accuracy. It counts odds ‘’1’’ in Binary data. There are
"odd" and "even" parity control method. For communication, master and slave devices must be using the same
method. The desired method is selected from the menu or "NONE" option selected to make parity check feature
turned off.
3.5.6 3.5.6 Digital Input Settings Menu (DI INPUT)
Use this menu item to set the on/off position, type, delay time and detection edge for the digital input. Please see
Table 3-3 for the menu tree and SECTION 5 for the factory default settings.