10-26
Additional Components
Rexroth EcoDrive Cs Drives
DOK-ECODR3-DKC**.3-CS*-PR02-EN-P
10.4 DC24V NTM power supplies
Application recommendations
If there is no external DC24V control voltage available, then Rexroth
recommends the use of NTM power supply units.
The power supply NTM supplies the control of the holding brake or the
control of the I/O's.
•
The power supplies contain an overvoltage safety switch with
automatic shutdown. After the automatic shutdown device has
responded, operation can be resumed by switching the power supply
off, briefly, and on again.
•
The power supplies always function with a starting current limiter.
However, if you switch off and on again within a period of 10 s, the
starting current limit do not work!
•
The NTM01.1-024-004 and NTM01.1-024-006 power supplies make it
possible to measure the voltage applied to the load via cable sensor.
If there is a voltage drop, the power supply will increase the output
voltage accordingly.
•
Installation in enclosed control cabinet required.
Rexroth recommends a 10 A automatic circuit breaker with tripping
characteristics C for DC24V NTM power supplies.
Note:
Mains filters are available to comply with EMC-limits. For a
selection of information see project planning manual
"Electromagnetic Compatibility (EMC) in Drive and Control
Systems", doc.-type DOK-GENERL-EMV********-PRxx.
Technical data
Designation
Symbol
Unit
NTM01.1-24-002
NTM01.1-24-004
NTM01.1-24-006
Output rated voltage
U
out
VDC
24
24
24
Adjustment range
%
+-10
+-10
+-10
Rate current of the 24V output for
45 °C ambient temperature
I
N
A
2.1
3.8
5.5
Output power for 45 °C ambient
temperature
P
OUT
VA
50
100
150
input current at 230 (115) V
I
IN
A
0.61 (1.2)
1.2 (2.2)
1.9 (3.2)
inrush current for 230 (115) V at the
power input line when the NTM is
switched on. Size the back-up fusing
accordingly
I
EIN
A
32 (16)
32 (16)
32 (16)
Input voltage
U
N
V
Standard AC 170...265
by changing the bridge circuit setting AC 85...132
Degree of protection
installation in enclosed control cabinet required
Fig. 10-36: Technical data for DC24V NTM power supply units
Features
Fuse protector Q2
Line filter
Courtesy
of
CMA/Flodyne/Hydradyne
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Control
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426-5480
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