Siemens SIMOTRAS 6SG7050 - SIMOTRAS HD - Control Characteristics for Lifting Gear

Description 01.04
3-6 SIEMENS AG 6SG7000-0BA76
SIMOTRAS HD Operating Instructions
3.3.5 SIMOTRAS HD – control characteristics for lifting gear
+n
+M
-M
100
80
60
40
20
-20
-40
-60
-80
-120
%
%
-140 -100 -60 -20
20 60 100 140 180
%
%
-n
Full load curve
Lift
Full load curve
Lower
Driving Lift
Driving Lower
Braking Lift
Braking Lower
K
K
*
*
*
K ...................
S2, S3, S4 ....
* ....................
Characteristic curves for counter-torque operation (plug braking), i.e.
delay lowering with overhauling loads or delay lifting
when active counter-torque operation requested
Characteristic curves for open-loop operation
Use of current limiting (e.g. Imax = 2 * I
N
)
..... SIMOTRAS HD control range
S3
S2
S1
S4
S3
S2
S1
S4
Up to 4 rotor resistance switching stages can be provided. With less than 4 stages, the upper
stages (S3 / S4) remain free.