Siemens SINAMICS S200 - External 24 V DC Power Supply; Replacement Fans

3.4.4 External 24 V DC power supply
Description
A 24 V DC power suppl
y is needed to supply the converter. The following table provides the
technical speci󹪝cations of the required external 24 V DC power supply:
Table 3-11 Speci󹪝cations of the required external 24 V DC power supply
Parameter Description
Rated voltage (V) 24 (-15% to +20%)
1)
Permissible voltage 󹪞uctuation
(V)
When using a motor without brake: 20.4 ... 28.8
When using a motor with brak
e: 22.8 ... 28.8
Maximum current (A)
• For 200 V variants
When using a motor without brak
e: 1.2
When using a motor with brake: 2.2
• For 400 V variants
When using a motor without brake: 1.2
When using a motor with brake: 3.2
Safety insulation class SELV/PELV
1)
When using a mo
t
or wit
h br
ak
e, the minimum voltage of 24 V DC -5% must be available at the
connector on the motor side to guarantee that the brake reliably opens. If the maximum voltage of
24 V DC +20% is exceeded, then the brake could re-close. The voltage drop along the brake feeder cable
must be taken into consideration. The voltage drop ΔU for copper cables can be approximately
calculated as follows:
ΔU [V] = 0.01742 Ω·mm
2
/m ∙ (2*l/q) ∙ I
Brake
Where: l = cable length [m], q = brake cable cross section [mm
2
], I
Brake
= DC current of brake [A]
Note
Siemens recommends that you use di󹪜erent 24 V DC po
wer supplies for the converter and for
the inductive loads such as relays or solenoid valves.
If you use the 24 V DC power supply to supply both the inductive loads and the converter at the
same time, make sure that you connect surge protection devices to the load side.
3.4.5 Replacement fans
Description
The 400 V
converters FSC and FSD are integrated with a fan unit. The service life of the fan can
reach 20000 hours at the rated operating temperature and the average 100% operating load.
Replace the defective fan in time to ensure the proper operation of the converter.
To replace the fan, you can order fan units from Siemens using the following article numbers.
Description
3.4Accessories
SINAMICS S200 pulse train servo drive system with SIMOTICS S-1FL2
66 Operating Instructions, 11/2023, FW V6.3, A5E51646767B AA