Convection Cooled Systems, Ny4125 - Bosch rexroth NYCe 4000 Hardware Manual

NYCe 4000 Multi-axis motion control system Hardware Sys‐
tem Manual
17.5.5

Convection cooled systems, NY4125

4
2
0
0 10
Fig. 17-5: Max. motor current for 5 axes and all digital outputs at 1 A load with
3 fans (airflow 11.3 m
When the NY4125 drive module is used in the NY4063 system housing, you
can connect 5 axes. fig. 17-6 "Max. motor current for 5 axes and all digital
outputs at 1 A (line Ⓐ and Ⓑ) or all digital outputs at 0 A (line Ⓒ) vs.
environmental temperature" on page 222
motors ask continuously the same maximum motor current, and all digital
outputs drive a load of 1 A continuously, or are not used.
If the PWM frequency is 96 kHz and all digital outputs drive a load of 1 A
continuously, the following conditions apply. See line Ⓐ.
● The maximum motor current is 2.0 A rms for all axes at an
environmental temperature up to 20 °C.
● The absolute maximum environmental temperature is 43 °C (motor
current is 0).
If the PWM frequency is 32 kHz and all digital outputs drive a load of 1 A
continuously, the following conditions apply. See line Ⓑ.
● The maximum motor current is 2.0 A rms for all axes at an
environmental temperature up to 28 °C.
● The absolute maximum environmental temperature is 45 °C (motor
current is 0).
If the PWM frequency is 32 kHz and all digital outputs are not used, the
following conditions apply. See line Ⓒ.
● The maximum motor current is 2.0 A rms for all axes at an
environmental temperature up to 45 °C.
● The absolute maximum environmental temperature is 55 °C (motor
current is .95 A rms).
Environmental Conditions
B
A
20 30 40
Environmental temperature (°C)
3 /hr) installed vs. environmental temperature
shows the situation where all 5
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