Simotras Hd - Control Characteristics For Lifting Gear - Siemens SIMOTRAS 6SG7050 Operating Instructions Manual

Description
3.3.5 SIMOTRAS HD – control characteristics for lifting gear
Braking Lift
K
%
-M
S1
S2
S3
S4
Driving Lower
K ...................
S2, S3, S4 ....
* ....................
Up to 4 rotor resistance switching stages can be provided. With less than 4 stages, the upper
stages (S3 / S4) remain free.
3-6
-140 -100 -60
..... SIMOTRAS HD control range
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
Full load curve
%
100
80
60
40
20
-20
20 60
-20
-40
-60
-80
-120
%
-n
Full load curve
Lower
)
N
Driving Lift
Lift
S4
S3
S2
S1
100 140 180
K
Braking Lower
SIEMENS AG 6SG7000-0BA76
SIMOTRAS HD Operating Instructions
01.04
*
*
%
+M
*