Transistor Output Behavior In The Event Of A Short Circuit/Overload64; Connecting Outputs In Parallel; Figure 20: Inductive Load With Suppressor Circuit - Eaton easyE4 Manual

2. Installation
2.4 Connection terminals
2.4.7.1 Transistor output behavior in the event of a short circuit/overload

2.4.7.2 Connecting outputs in parallel

64
Depending on the actual inductive load (I, L):
If the +24 V
emergency stop, and if more than one driven output with an inductive load
can be switched off, you must provide these inductive loads with a sup-
pressor circuit.
+ 24 V H
U
emax
Q
0 V H

Figure 20: Inductive load with suppressor circuit

The following applies to easyE4 devices with transistor outputs:
In the event of a short circuit or overload at a transistor output, this output will switch
off and a general fault alarm ID (please refer to fault IDs) will be set to 1. The output will
switch back on up to the maximum temperature after a cooling time that depends on
the ambient temperature and the current level. If the fault continues, the output will
switch off and on until the fault is rectified or the power supply is switched off.
Only outputs of the same group (Q1 to Q4 or Q5 to Q8) can be connected in parallel; e.g.
Q1 and Q3 or Q5, Q7 and Q8. Parallel switched outputs must be similtaneously ener-
gized.
If the outputs are not switched on and off automatically, or if outputs from
both groups are connected in parallel, this may result in malfunctions such
as those occurring in the case of overloads.
easyE4 10/19 MN050009 EN www.eaton.com
power supply is switched off via a contact in the event of an
DC
< U < 33 V
Z
Q