70
20
30
40
10
0
50
60
Environmental temperature (°C)
Motor current (A. rms)
2
4
0
A
B
Fig. 17-5:
Max. motor current for 5 axes and all digital outputs at 1 A load with
3 fans (airflow 11.3 m
3
/hr) installed vs. environmental temperature
17.5.5
Convection cooled systems, NY4125
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
shows the situation where all 5
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).
NYCe 4000 Multi-axis motion control system Hardware Sys‐
tem Manual
221/233
Environmental Conditions
R911337671_Edition 18 Bosch Rexroth AG
