Schneider Electric LUFP7 user manual Controlling and Supervising the 8 TeSys U Motor Starters

11. Appendix D: Sample Use under PL7 PRO

11.3. Controlling and Supervising the 8 TeSys U Motor Starters

The “Supervision Control” operating screen (see picture below) is meant to monitor the status of the 8 TeSys U motor starters, numbered from 1 to 8. It is also meant to control them individually using several buttons.

Registers 455 and 704 of each of the 8 TeSys U motor starters are used to conduct this control and supervision:

455 – TeSys U status register (IEC61915)

Bit 0	Motor starter ready
..........Bit 1	Contactor in the ON position (			1	)
..........Bit 2	Fault (trip or dropout)
Bit 3	Alarm presence
..........Bit 4	Specific: Tripped (	I >>	)
..........Bit 5	Specific: Fault reset	authorized
Bit 6	Specific: A1-A2 supply
Bit 7	Specific: Motor running
Bits 8- ...13 Motor current (2#10 0000 = 200%)
Bit 14	Reserved: Local control
Bit 15	Ramping (motor starting)

704 – (IEC61915) command register

Bit 0	Reserved: Run forward
Bit 1	Reserved: Run reverse
Bit 2	Reserved (stopping)
Bit 3	Reset
Bit 4	Reserved (emergency start)
Bit 5	Self test: Triggering test (trip)
Bit 6	Reserved (low speed)
Bits 7- ...11 Reserved by the IEC61915 standard
Bit 12	Specific: Overload (shunt trip)
Bit 13	Specific: Pause (reserved for adjustment)

Bits 14-15 .Specific: Reserved

These statuses and controls are grouped in two sections: “General Status”, for the general operating mode of the motor starters, and "Motor" for the general operating mode of controlled motors. The last section, “DEBUG COMM.”, displays the registers %IW and %QW used for each motor starter.

This screen is represented below, but only for the first motor starter, as it is identical for the 7 others.

Most displays in this operating screen are directly tied to the %MW registers containing the values of registers %IW4.0.1 to %IW4.0.8 and %QW4.0.1 to %QW4.0.8 (status and command registers of the TeSys U motor starters). Only the indirect controls and statuses are described below.

The “Cmd_mon” program conducts the following tasks:

•Copy the values of words %MW20 to %MW27 to output registers %QW4.0.1 to %QW4.0.8, and copy the values of input registers %IW4.0.1 to %IW4.0.8 to words %MW10 to %MW17.

These data are copied because word bit extraction can be carried out on %MW indexed words, but not on %IW indexed words. Actually, the sub-program “Sr0” uses word indexing to a large extent, as it makes it possible to process any motor starter, since it is designated by the word %MW0. E.g.: “%MW10[%MW0]:X13” is allowed, but not “%IW4.0.1[%MW0]:X13”.

Furthermore, the input and output words are copied one by one, as PL7 PRO does not support expressions such as “%IW4.0.1:8”.

•“Sr0” sub-program calling loop, whose purpose is to control and monitor of the 8 TeSys U motor starters. Upon each iteration of this loop, the word %MW0 (“Module”) takes a value from 0 to 7 in order to be used as an index for words %MW10 to %MW17 (inputs) and %MW20 to %MW27 (outputs).

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