Siemens MICROMASTER 420 - Manual (Page 81)

Issue 07/04 3 Functions
MICROMASTER 420 Operating Instructions
6SE6400-5AA00-0BP0 81
3.5.5.15 Inverter-specific Functions
Flying start
P1200 =... Flying start
Starts inverter onto a spinning motor by rapidly changing the output frequency of the
inverter until the actual motor speed has been found.
0 Flying start disabled
1 Flying start is always active, start in direction of setpoint
2 Flying start is active if power on, fault, OFF2, start in direction of setpoint
3 Flying start is active if fault, OFF2, start in direction of setpoint
4 Flying start is always active, only in direction of setpoint
5 Flying start is active if power on, fault, OFF2, only in direction of setpoint
6 Flying start is active if fault, OFF2, only in direction of setpoint
P1202 =... Motor-current: Flying start (entered in %)
Defines search current used for flying start.
P1203 =... Search rate: Flying start (entered in %)
Sets factor by which the output frequency changes during flying start to synchronize with
turning motor.
Automatic restart
P1210 =... Automatic restart
Configures automatic restart function.
0 Disabled
1 Trip reset after power on
2 Restart after mains blackout
3 Restart after mains brownout or fault
4 Restart after mains brownout
5 Restart after mains blackout and fault
6 Restart after mains brown/blackout or fault
Holding brake
P1215 =... Holding brake enable
Enables/disables holding brake
function (MHB).
0 Motor holding brake disabled
1 Motor holding brake enabled
NOTE
The following must apply when
controlling the brake relay via a
digital output: P0731 = 14 (refer to
Section 3.5.5.4 "Digital ").
0 t
fmin
(P1080)
P1217 P1216
1
r0052
Bit12
t
f
Point 2 Point 1
P1216 =... Holding brake release delay (entered in s)
Defines the time interval during which the frequency inverter runs with the min. frequency
P1080 after magnetizing, before the ramp-up starts.
P1217 =... Holding time after ramp-down (entered in s)
Defines time for which inverter runs at minimum frequency (P1080) after ramping down.
0
100 %
100 %
0
1.0 s
1.0 s
0