Description
Symbol
Unit
Value
control voltage for drive systems without
operation of motor holding brakes in Re‐
xroth motors
U
N3
V
19,2 … 28,8 (24 ±20%)
When using supply units HMV01.1E, HMV01.1R,
HMV02.1R, HLB01.1D:
22,8 … 27,3 (24 ‑5%, 26 +5%)
control voltage for drive systems with op‐
eration of motor holding brakes in Rexroth
motors
U
N3
V
Depending on the motor cable length, the control volt‐
age must be within the following voltage ranges:
●
motor cable length < 50 m: 22,8 … 25,2 (24 ±5%)
●
motor cable length > 50 m: 24,7 … 27,3 (26 ±5%)
Take the data of the corresponding motor holding brake
into account.
external control voltage at devices of de‐
sign "NNNV"
(see type code HCS02, HCS03; other de‐
sign:
DC 24 V power supply from the DC bus or
external)
U
N3
V
26 … 28,8
The output voltage of the internal switching power sup‐
ply unit is 24 ±10% (see control voltage block diagram
"int. SMPS").
max. ripple content
w
-
The amplitudes of the alternating component on U
N3
must be within the specified voltage range.
maximum allowed overvoltage
U
N3max
V
33 (max. 1 ms)
Fig.4-12:
Control voltage
Overvoltage
Overvoltage greater than 33 V has to be discharged by means of
the appropriate electrical equipment of the machine or installation.
This includes:
●
24V power supply units that reduce incoming overvoltage to
the allowed value.
●
Overvoltage limiters at the control cabinet input that limit ex‐
isting overvoltage to the allowed value. This, too, applies to
long 24V lines that have been run in parallel to power cables
and mains cables and can absorb overvoltage by inductive or
capacitive coupling.
Power supply units with buffer (UPS)
For HMV supply units, use 24 V supplies with buffer times of at least
100 ms (e.g. UPS), if commutation drops and short-time interrup‐
tions in the application exceed the specified values.
For the 24V supply, also take the following chapter into account:
“Dimensioning the Mains Connection” in the Project Planning Man‐
ual “Rexroth IndraDrive – Drive System”.
Insulation monitoring impossible
The input 0 V is connected in conductive form with the housing po‐
tential. Insulation monitoring at +24V and 0V against housing is
therefore impossible.
24/369
Bosch Rexroth AG | Electric Drives
and Controls
Rexroth IndraDrive | Project Planning Manual
General Specifications of the Devices
Содержание Rexroth lndraDrive HCS02 Series
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