Metronix 9200-4104-2000, Инструкция по монтажу

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6 Technical data
6.6 BL 4800-M / BL 4800-D:
Motor connector [X6]
Performance data
With supply voltage 48 VDC [± 10 %], f
PWM
= 5 kHz, f
el
> 3 Hz,
T
Ambient
= 30°C
Characteristic BL 4840-M BL 4840-D
Nominal output power 1.0 kW 1.1 kW
Maximum output power for 2 s 3.6 kW
Nominal output current 40 A
eff
42 A
eff
Max. output current for 2 s 120 A
eff
Power loss/efficiency
*)
3 % / 97 %
*)
As a guide value for the cooling measures.
Current derating
The BL 4800-M / BL 4800-D series servo drives have a current derating during nominal
operation. The rated current and the duration of the maximum permissible peak current of
the servo drive depend on several factors. These factors are:
l
Output current level: The higher the output current is, the shorter the permissible
time will be.
l
Clock frequency of the power output stage: The higher the clock frequency is, the
shorter the permissible time will be.
The current derating begins as of a PWM frequency of 10 kHz (f
PWM
) and is linear
between the reference values that are stated in the following table:
PWM frequency f
PWM
*)
BL 4840-M / BL 4840-D
I
nominal
I
max
10 kHz 40 A 120 A
16 kHz 30 A 90 A
*)
The PWM frequency is the reciprocal of half of the current controller cycle time t
i
. The
variable cycle times enable particularly high dynamics combined with reduced power
data.
Motor cable requirements
Characteristic Value
Cable length
l
≤
2 m
siehe section 5.1 Notes concerning the safe and
EMC-compliant installation on page 26
Cable capacity C‘
≤
160 pF/m
of one phase against shield or between two lines
Mounting Instructions BL 4000-M and BL 4000-D Page 74 of 95