5.5
Control Voltage (24V Supply)
PELV
For the 24V supply of the devices of the Rexroth IndraDrive
range, use a power supply unit or a control-power transformer
with protection by PELV according to IEC 60204-1 (section 6.4).
In the scope of CSA/UL, the data of the control-power transformer
are limited to:
●
Max. output voltage: 42.4 V
peak
or 30 V
ac
●
Max. output power: 10000 VA
The data in the table below generally apply to the 24V supply of the devices
of the Rexroth IndraDrive range. For other data, such as power consumption
and inrush currents, see the technical data of the respective device.
The specified values apply at the connections (+24V, 0V) to the "24V supply"
of the devices!
Description
Symbol
Unit
Value
Control voltage for drive systems without
operation of motor holding brakes in
Rexroth motors
U
N3
V
20,4 … 28,8 (24 +20% -15%)
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 voltage
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
and external)
U
N3
V
26 … 28,8
The output voltage of the internal switching power supply
unit is 24 ±10%.
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)
Tab.5-11:
Control Voltage
Protective Extra Low Voltage
DOK-INDRV*-SYSTEM*****-PR06-EN-P
Rexroth IndraDrive Drive Systems with HMV01/02 HMS01/02, HMD01, HCS02/03
Bosch Rexroth AG
65/309
General Data and Specifications
