Lenze EVF9383 - Manual (Page 124)

Configuration
2−116
l
EDSVF9383V−EXT EN 2.0
Range of functions
l Mains failure detection
l Mains failure control
l Restart protection
l Reset of the mains failure control
l Dynamic adaptation of the control parameters
l Fast mains recovery (KU)
l Application examples
2.4.41.1 Mains failure detection
The type of the mains−failure detection to be used depends on the drive system used.
A failure of the voltage supply of the power stage is detected:
l by the level of the DC−bus voltage or
l by an external system (e.g. supply module or voltage−detection relay).
l Different systems can be combined.
Mains failure detected by the level of the DC−bus voltage
Use with single drives or multi−axis drives, which do not use external monitoring systems.
l For this, you can use a comparator (e.g. CMP2). Set the following signal links:
– C0688/1 = 5005 (MCTRL−DCVOLT to CMP2−IN1)
– C0688/2 = 19540 (free code C0472/20 to CMP2−IN2)
– C0971 = 10655 (CMP2−OUT to MFAIL−FAULT)
– Set the comparator function CMP2 with C0685 = 3
Enter the function blocks CMP2 and MFAIL at free positions into the processing table under C0465.
C 0 9 8 9 / 1
M F A I L - F A U L T
M F A I L - R E S E T
C 0 9 7 1
C 0 9 7 2
1
0
C 0 9 8 8 / 1
C 0 9 7 0
C 0 9 8 9 / 2
C T R L
M F A I L - N O U T
M F A I L - N - S E T
C 0 9 8 3
C 0 6 8 6
C 0 6 8 7
C 0 6 8 9 / 1
C M P 2
C M P 2 - O U T C M P 2 - I N 1
C 0 6 8 9 / 2
C M P 2 - I N 2
C 0 6 8 8 / 1
C 0 6 8 8 / 2
C 0 6 8 5
C 0 4 7 2 / 2 0
M C T R L - D C V O L T
M F A I L
Fig. 2−93 Example of a mains failure detection with internal function blocks (section)