Technical Data - Siemens SIMODRIVE 611 digital Configuration Manual

4 Power Modules

4.3 Technical data

4.3 Technical data
General
Definition of the
currents
Definition of the
power ratings
4-86
www.aotewell.com
The technical data of the power modules is specified in Table 4-1 for the 1--axis
version and in Table 4-2 for the 2--axis version.
The specified values are valid for:
The specified rated frequency (inverter pulse frequency)
S
Maximum ambient temperature of 40 °C
S
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. 4-2 to 4-5)
FD mode
S
-- I Continuous nominal current, rated current
n
-- I Peak current
max
S Operating modes, MSD--IM and MSD--SRM
-- I Continuous nominal current, rated current
n
-- IS6--40% Current for maximum of 4 min. for the S6 load duty cycle
-- I Peak current
max
-- I Minimum motor current
min
-- n Speed at the start of field weakening
FS
-- I Motor no--load current in A
0Mot
The following restrictive conditions must be met:
for induction motors:
-- The no--load current of the motor (I
rent of the power module (according to Table 4-1).
-- On the basis of the actual current value resolution, the lowest occurring
no--load current of the motor must satisfy the following condition:
n
FS
I
¯ ≥
n
0Mot
max
for synchronous motors:
A ratio of I
max_powersection
synchronous motors.
Appropriate values are specified in Table 4-1 and 4-2 to dimension the cabinet
cooling. These are defined as follows:
P Total power loss dissipated by the module
S
Vtot
S P Power loss that can be dissipated externally or using
Vext
hose cooling
P Power loss that cannot be dissipated using hose cooling or
S
Vint
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.
SIMODRIVE 611 Configuration Manual (PJU) - - 05/2008 Edition
sales@aotewell.com
rms
) must be less than the rated cur-
0Mot
I (I according to Table 4-1)
min min
/I ~ 5 should not be exceeded for
0_100K (motor)
© Siemens AG 2008 All Rights Reserved
Industry Automation
05.08 12.07 03.08 10.04
05.01
+86-755-8660-6182