Siemens SINUMERIK 810D

12.95
4.4 Integrated power sections: 3-axis CCU box
4-78
E Siemens AG, 2002. All rights reserved
SINUMERIK 810D Manual Hardware Configuration (PHC) -- 11.02 Edition
t
I
I
max
I
n
4secs
10secs
I
max
= peak current
I
n
= rated current
Fig. 4-14 Peak current load cycle without previous load for FSD
Only for the MSD power section with 24A/32A
t
I
I
n
4min
10min
I
max
0.7xI
n
I
S6
I
max
= peak current
I
n
= rated current
Fig. 4-15 S6 load cycle with previous load at MSD
t
I
I
n
10secs
60secs
I
max
0.7xI
n
I
S6
I
max
= peak current
I
n
= rated current
Fig. 4-16 S6 peak current load cycle with previous load at MSD
At simultaneous continuous operation, power sections A2 and A3 must only
operate on average at 63% of their rated current. There is no s imultaneity
restriction for A1.
Rated load cycles
MSD
Simultaneity factor
(GZF)
4De
s
c
r
i
p
tion o
f
the SINUM
E
RI
K
8
10D