8.7.3 Digital Outputs
Digital Outputs (Standard)
The
digital outputs are compatible with digital inputs of types 1, 2 and 3
(IEC 61131).
Fig. 8-30: Symbol
Data Unit Min. Max.
Output voltage ON
1)
V U
ext
- 1 U
ext
Output current OFF mA 0,05
Output current ON mA 500
Sum of output currents
2)
■ 4 outputs
■ 8 outputs
mA
■ 1000
■ 2000
Allowed energy content of con‐
nected inductive loads
3) 4)
■ f < 0.5 Hz
■ f < 2 Hz
mJ
■ 500
■ 200
Control delay µs
800
200
5)
Short circuit protection Present
Overload protection Present
1) U
ext
: Supply voltage
2) When several outputs supply current simultaneously, the maxi‐
mum allowed total current of these outputs must be taken into
account. According to the number of outputs, the total current
must be related to to 4 or 8 outputs.
3) In the case of inductive loads with a greater energy content, an
external free-wheeling arm must be installed. The effective ter‐
minal voltage must be < 25 V.
4) The maximum energy content depends on the switching fre‐
quency f of the outputs
5) Applies to optional I/O extension DA
Tab. 8-31: Digital Outputs
● The
digital outputs have been realized with high-side
switches. This means that these outputs only can actively
supply current.
● The energy absorption capacity of the outputs is used to limit
voltage peaks caused when inductive loads are switched off.
Limit voltage peaks by using free-wheeling diodes directly at
the relay coil.
DOK-INDRV*-CXX02******-PR03-EN-P Bosch Rexroth AG 119/143
IndraDrive Control Sections CSB02, CSE02, CSH02, CDB02
Technical data - functions
Courtesy of CMA/Flodyne/Hydradyne ▪ Motion Control ▪ Hydraulic ▪ Pneumatic ▪ Electrical ▪ Mechanical ▪ (800) 426-5480 ▪ www.cmafh.com
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