Lenze EVS 9300 series - Page 273

Function library
Function blocks
9.2.41 Mains failure control (MFAIL)
9-147
L
EDSVS9332S-D11 EN 3.0
External system for mains failure detection (934x supply module)
z A digital output of the supply module 934x is switched to the function block MFAIL via the
digital inputs DIGIN of the 93XX controller. In the example, input X5/E4 is used. Set the signal
link:
– C0971 = 54 (DIGIN4 to MFAIL-FAULT)
– C0871 = 1000 (remove DCTRL-TRIP-SET from terminal X5/E4)
– Select level (HIGH or LOW active) with C0114/4
Enter the function block MFAIL into a free position of the processing table in C0465.
C0989/1
MFAIL-FAULT
MFAIL-RESET
C0971
C0972
1
0
C0988/1
C0970
C0989/2
CTRL
MFAIL-NOUT
MFAIL-N-SET
MFAIL
E1
E2
E3
E4
E5
1
0
C0114/1...5
DIGIN
DIGIN1
DIGIN2
DIGIN3
DIGIN4
DIGIN5
C0443
28
DCTRL -X5/28
X5
Fig. 9-100 Example of a mains failure detection by an external monitoring system
Combination of the two methods
z The methods are combined by means of an OR link and an internal function block. OR5 is
used in the example. Set the signal links:
– C0688/1 = 5005 (MCTRL-DCVOLT to CMP2-IN1)
– C0688/2 = 19540 (free code C0472/20 to CMP2-IN2)
– Set function of the comparator CMP2 with C0685 = 3
– C0838/1 = 10655 (CMP2-OUT to OR5-IN1)
– C0838/2 = 54 (DIGIN5 to OR5-IN2)
– C0971 = 10570 (OR5-OUT to MFAIL-FAULT)
Enter the function blocks CMP2, OR5 and MFAIL into free positions of the processing table in C0465.
C0989/1
MFAIL-FAULT
MFAIL-RESET
C0971
C0972
1
0
C0988/1
C0970
C0989/2
CTRL
MFAIL-NOUT
MFAIL-N-SET
MFAIL
E1
E2
E3
E4
E5
1
0
C0114/1...5
DIGIN
DIGIN1
DIGIN2
DIGIN3
DIGIN4
DIGIN5
C0443
28
DCTRL -X5/28
X5
C0686
C0687
C0689/1
CMP2
CMP2-OUT
CMP2-IN1
C0689/2
CMP2-IN2
C0688/1
C0688/2
C0685
C0472/20
MCTRL-DCVOLT
OR5
³1
OR5-IN1
OR5-IN2
OR5-IN3
OR5-OUT
C0839/1
C0839/2
C0839/3
C0838/1
C0838/2
C0838/3
FIXED0
Fig. 9-101 Example of a mains failure detected by different sources