Current Limit Monitoring; Description - Siemens SIMOCODE pro System Manual

5.2

Current limit monitoring

5.2.1

Description

Current limit monitoring is used for process monitoring, independent of
overload protection.
SIMOCODE pro supports two-phase monitoring of the motor current for
freely-selectable upper and lower current limits. The response of
SIMOCODE pro when a pre-warning or trip level has been reached can be
freely parameterized and delayed.
Motor current measurement is carried out via current measuring modules or
current/voltage measuring modules.
Current I_max from
Current measuring
(Current or
module or
Current/voltage
measuring module)
1) Upper limit
2) Lower limit
Fig. 5-3: "Current Limits" function block
SIMOCODE pro
GWA 4NEB 631 6050- 22 DS 03
Current limits
1)
Trip level: I>
Response when I>
Delay when I>
Warning level: I>
Response when I>
Delay when I>
2)
Trip level: I<
Response when I<
Delay when I<
Warning level: I<
Response when I<
Delay when I<
Hysteresis
Monitoring functions
QE1
QE2
QE3
Tripping
QE4
QE5
See
Event
Table 5-3
- Trip level I>
See
Event
Table 5-4
- Warning level I>
Event
See
Table 5-5
- Trip level I<
See Event
Table 5-6
- Warning level I<
5-5