Rockwell Automation 1760-xxxx Pico Controller User Manual - Manual (Page 49)

Publication 1760-UM001D-EN-P - September 2005
Installation 2-25
Parallel Connection
Up to four outputs can be connected in parallel in order to increase
the load current. The output current will increase to a maximum of
2A.
Switch Inductive Loads
If inductive loads are not suppressed, only one inductive load should
be switched off at any one time to prevent the output transistors from
overheating. If, in the event of an emergency stop, the +24V dc power
supply is to be switched off by means of a contact, and this would
mean switching off more than one controlled output with an inductive
load, then you must provide suppressor circuits for these loads. See
the following diagrams.
ATTENTION
Outputs may only be connected in parallel within a
group (S1 to S4) or (S5 to S8) such as (S1 and S3) or
(S5, S7 and S8). Outputs connected in parallel must
be switched ON and OFF at the same time.
ATTENTION
Observe the following when switching off inductive
loads:
Suppressed inductive loads cause less interference in
the entire electrical system. For optimum
suppression, the suppressor circuits are best
connected directly to the inductive load. See Use
Surge Suppressors on page 2-12.
0 V
+24V
0V
S
S
Ue max. < Uz < 33V