Functions
6.4 Motor control
Motor starter (3RK1308‑0**00‑0CP0)
74
Equipment Manual, 11/2019, A5E34821005002A/RS-AC/003
t
3
Interlock time: 150 ms + 5 ms time slice run
t
4
ON-delay
•
Fail-safe motor starters: 25 ms
•
HF motor starter: 20 ms
t
W
Recovery time t
0
+ t
2
+ t
3
•
Fail-safe motor starters: t
0
+ 210 ms
•
HF motor starter: t0 + 190 ms
Figure 6-3
Control command reaction times
6.4.4
Operating modes
The following modes are available (in ascending order of priority):
●
Operating mode: Automatic (lowest priority)
The motor starter can only be controlled with the PLC via the fieldbus.
Automatic mode is activated automatically when communication with the interface
module or the higher-level CPU is established.
●
Operating mode: Manual bus: Controlling the motor starter by means of software,
e.g. TIA Portal V16, via fieldbus is possible
1)
●
Operating mode: Manual local via the 3DI/LC module (highest priority)
The motor starter can be controlled as follows:
–
Set the "Local Control" (LC on the 3DI/LC module) input to activate
manual local mode.
–
Also set a digital input on the 3DI/LC module (1, 2 or 3, depending on the
parameterization) to "Motor CW" or "Motor CCW", for example.
Using the LED "MAN", the message bits in the Address space (Page 158) and the
DS92 Read device diagnostics (Page 186), you detect which control source currently has
control priority:
●
Operating mode: Automatic ("MAN" LED off)
●
Operating mode: Manual local ("MAN" LED on)
