Stober PS6A34 - Derating; Tab. 39 Absolute Losses in the Accessories; Tab. 40 Nominal Output Current I2 N,PU Dependent on the Clock Frequency

STOBER 6 | Technical data
02/2019 | ID 442728.05
51
6.3.1.9 Power loss data of accessories
If you intend to order the drive controller with accessory parts, losses increase as follows.
Type Absolute losses
P
V
[W]
SR6 safety module 1
SY6 safety module 2
Tab. 39: Absolute losses in the accessories
Information
Note the absolute power loss of the encoder (usually < 3 W) and of the brake when designing
as well.
Loss specifications for other optional accessories can be found in the technical data of the
respective accessory part.
6.3.2 Derating
When dimensioning the drive controller, observe the derating of the nominal output current as a
function of the clock frequency, surrounding temperature and installation altitude. There is no
restriction for a surrounding temperature from 0°Cto 45°Cand an installation altitude of 0m to
1000m. The details given below apply to values outside these ranges.
6.3.2.1 Effect of the clock frequency
Changing the clock frequency f
PWM
affects the amount of noise produced by the drive, among
other things. However, increasing the clock frequency results in increased losses. During
project configuration, define the highest clock frequency and use it to determine the nominal
output current I
2N,PU
for dimensioning the drive controller.
Type I
2N,PU
4kHz [A]
I
2N,PU
8kHz [A]
I
2N,PU
16kHz [A]
SI6A061 5 4.5 3.5
SI6A062 2 × 5 2 × 4.5 2 × 3.5
SI6A161 12 10 6
SI6A162 2 × 12 2 × 10 2 × 6
SI6A261 22 20 10
SI6A262 2 × 25 2 × 20 2 × 10
SI6A361 50 40 20
Tab. 40: Nominal output current I
2N,PU
dependent on the clock frequency
Information
Select the defined clock frequency using parameter B24. The clock frequency for double-axis
controllers always applies to both axis controllers.