Device 48 - Incomplete Sequence Relay Device - Maximum Stop Time; Table 6-11 Advanced Motor Protection Menu - Incomplete Sequence - Maximum Stop Time (Id 7330) - Siemens SINAMICS PERFECT HARMONY GH180 Function Manual

6.13

Device 48 - Incomplete Sequence Relay Device - Maximum Stop Time

Overview
Maximum stop time protects the motor against excessive time between the stop command and
dropping down to a desired speed. The function produces a trip or alarm condition when the
machine fails to reach an adjustable speed threshold in an adjustable time period following a
stop. The per-unit speed protection variable may be derived from a flux based Phase Locked
Loop (PLL) or encoder.
Note
Encoder Loss
Depending upon the value of parameter 1320 (encoder loss response), when a loss of the
encoder occurs, the drive will either default to the phase locked loop to obtain motor speed
information or the drive will stop.
Device 48 provides parameter status as shown in table
Incomplete Sequence - Maximum Stop Time
Table 6-11 Advanced Motor Protection Menu - Incomplete Sequence - Maximum Stop Time (ID 7330)
Keypad Parameter Text
Tool Parameter Text
Maximum Stop Time
Incomplete Sequence Maximum Stop
Time Stopping Time
Maximum Speed
Incomplete Sequence Maximum Stop
Time Maximum Speed
Low Pass Time Const
Incomplete Sequence Maximum Stop
Time Low Pass Time Constant
Picklist
Enable State
Maximum Stop Time Enable State
The maximum response time with zero delay (pickup counter=0) is 50 milliseconds.
Advanced Motor Protection for Variable Speed Operation
Manual, AA, A5E46373908A
Advanced Motor Protection and RTD Protection Functions
6.13 Device 48 - Incomplete Sequence Relay Device - Maximum Stop Time
ID Units
7331 sec
7332 %
7333 msec
ID Units
7334
Advanced Motor Protection Menu -
Default Minimum - Maximum Value
Value
10
5
0 0 - 1000
Default
Value
● Disabled
● Alarm
● LatchedAlarm
● Trip
0 - 180
0 - 100
Values
57