Lenze EVF9333−xV - Manual (Page 329)

Configuration
Function blocks
Internal motor control with vector control (MCTRL2)
8
8.2
8.2.7
l
8.2−67 EDSVF9333V EN 6.2−04/2012
Flying restart circuit with protection against unexpected start−up
(C0142 = 2):
0
1
2
3
4
 ‚ ƒ „
9300vec087
Fig. 8.2−23 Signal characteristic for manual start with flying restart circuit (C0142 = 2)
0 Speed setpoint (e.g. AIN−OUT)
1 Actual speed value
2 Fault (e.g. DCTRL−FAIL = HIGH)
3 Pulse inhibit (e.g. DCTRL−IMP = HIGH)
4 Enable controller (e.g. X5/28 = HIGH)
 The motor rotates with setpoint
‚ A fault (e.g. mains failure, TRIP SET) activates a pulse inhibit c . The motor
coasts. After eliminating the fault (e.g. mains recovery, TRIP RESET) the pulse
inhibit remains active until the controller is enabled again (e.g. LOW−HIGH
edge at X5/28)
Important in case of an OU message: if the OU message is not pending
anymore, the pulse inhibit is deactivated.
ƒ The flying restart circuit is active now and determines the current motor
speed
„ The motor is accelerated along the set acceleration ramp to the speed
setpoint and is being kept there