Acknowledge Esr Reactions - Siemens SINUMERIK 840D sl Function Manual

R3: Extended stop and retract
6.3 ESR executed autonomously in the drive
Interrelationship between signals
MELDW
MELDW.Bit9
(ESR initiated / generator operation
active (r0887.12))
MELDW.Bit4
(VDC_min controller is active (Vdc link
< p1248))
MELDW.Bit2
(|n_act| < speed threshold value 3
(p2161))
6.3.8

Acknowledge ESR reactions

Acknowledging axis-specific drive-independent ESR reactions must be programmed on a
user-specific basis in a part program/synchronized action. After the ESR reaction in the drive
has been completed, an edge change must be generated in the system variables
$AA_ESR_ENABLE: 1 → 0 → 1. In order that the drive-integrated ESR reactions can be
retriggered, the system variable $AN_ESR_TRIGGER must also be reset to a value of 0.
390
System variable
$AA_ESR_STAT .Bit2
(ESR is triggered)
$AA_ESR_STAT .Bit3
(DC link undervoltage)
$AA_ESR_STAT .Bit4
(Generator minimum speed)
NC/PLC interface signal
-
DB31, ... DBX95.0
(VDC link < alarm threshold)
DB31, ... DBX95.3
(Generator operation minimum speed
fallen below)
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
Special Functions