where all 5 motors ask continuously the same maximum motor current, all 10
digital outputs drive a load of 1 A continuously.
If the PWM frequency is 16 kHz, the following conditions apply.
●
The maximum motor current is 4.0 A rms for all axes at an
environmental temperature of 30 °C.
●
The maximum motor current is 1.5 A rms for all axes at an
environmental temperature of 40 °C.
●
The absolute maximum environmental temperature is 45 °C.
If the PWM frequency is 32 kHz, the following conditions apply.
●
The maximum motor current is 1.5 A rms for all axes at an
environmental temperature of 30 °C.
●
The absolute maximum environmental temperature is 37 °C.
70
20
30
40
10
0
50
60
Environmental temperature (°C)
Motor
current
(A. rms)
2
4
6
8
0
PWM frequency: 32 kHz
PWM frequency: 16 kHz
Fig. 17-10:
Maximum motor current for 5 axes (5 NY4140 drive modules) and all
digital outputs at 1A load vs. environmental temperature
As shown in
fig. 17-11 "Max. motor current for 5 axes (5 NY4140 drive
modules, PWM frequency = 16 kHz) and digital outputs not used vs.
environmental temperature" on page 225
, when the digital outputs are not
used and the PWM frequency is 16 kHz, the following conditions apply.
●
The maximum motor current is 5 A rms for all axes at an environmental
temperature of 30 °C.
●
The maximum motor current is 3 A rms for all axes at an environmental
temperature of 40 °C.
●
The absolute maximum environmental temperature is 50 °C.
224/233
Environmental Conditions
NYCe 4000 Multi-axis motion control system Hardware Sys‐
tem Manual
Bosch Rexroth AG R911337671_Edition 18
Содержание R911172904
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