5
05.01
5.3 Technical data
5-124
©
Siemens AG 2012 All Rights Reserved
SIMODRIVE 611 Configuration Manual (PJU) – 02/2012 Edition
5.3
Technical data
The technical data of the power modules is specified in Table 5-1 for the 1–axis
version and in Table 5-2 for the 2–axis version.
The specified values are valid for:
S
The specified rated frequency (inverter pulse frequency)
S
Maximum ambient temperature of 40
°
C
S
Installation altitude<1000 m above sea level
Derating must be applied for conditions that deviate from those specified above.
The power modules do not have any overload protection, but only a current
acquisition without its own processing. The overload protection is realized in the
SIMODRIVE 611 control unit.
Also refer to the definition of the load duty cycles (Fig. 5-2 to 5-5)
S
FD mode
–
I
n
Continuous nominal current, rated current
–
I
max
Peak current
S
Operating modes, MSD–IM and MSD–SRM
–
I
n
Continuous nominal current, rated current
–
IS6–40%
Current for maximum of 4 min. for the S6 load duty cycle
–
I
max
Peak current
–
I
min
Minimum motor current
–
n
FS
Speed at the start of field weakening
–
I
0Mot
Motor no–load current in A
rms
The following restrictive conditions must be met:
for induction motors:
–
The no–load current of the motor (I
0Mot
) must be less than the rated cur-
rent of the power module (according to Table 5-1).
–
On the basis of the actual current value resolution, the lowest occurring
no–load current of the motor must satisfy the following condition:
w
n
max
n
FS
I
0Mot
I
min
(I
min
according to Table 5-1)
for synchronous motors:
A ratio of I
max_powersection
/I
0_100K (motor)
X
5 should not be exceeded for
synchronous motors.
Appropriate values are specified in Table 5-1 and 5-2 to dimension the cabinet
cooling. These are defined as follows:
S
P
Vtot
Total power loss dissipated by the module
S
P
Vext
Power loss that can be dissipated externally or using
hose cooling
S
P
Vint
Power loss that cannot be dissipated using hose cooling or
external cooling (this power loss remains in the control cabinet)
For components with internal cooling, the complete dissipated power loss re-
mains in the control cabinet.
General
Definition of the
currents
Definition of the
power ratings
5 Power Modules
10.04
03.08
12.07
05.08