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Electrical connection
Configuration C
7-12
PST 6101.321 / PSI 6101.321
The I/O range of the PSI 6101.321 is supplied with a voltage of 24 V DC (internal supply,
derived from the mains voltage). Several jumpers have to be positioned to enable this
configuration.
The logic portion is supplied by an external 24 V DC power supply unit (external power
supply). The power supply to the timer logic is therefore independent of the welding net-
work.
In configuration C, the timer logic is supplied by an external 24 V DC power supply unit [1].
In configuration C, the external power supply unit must satisfy the following requirements:
-
maximum ripple <5%, tolerance -15% / + 20%.
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PSI 6101.321
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Making current: approx. 2.0 A, duration approx. 10 ms, plus the current of
the external unit connected to X5.
-
continuous current: approx. 1.5 A, plus the current of the external unit con-
nected to X5.
Functions:
-
When the welding network is switched off, the following interfaces will be inter-
rupted:
-
no communication via the parallel I/O interfaces possible
-
communication via the serial I/O interface is possible
-
communication between the timer and the programming terminal, e.g. pro-
gramming and visualization, is possible.
-
Preferably used with networked systems.
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The Stop function is ensured by means of a floating contact which is to be con-
nected to terminals X4/3 and X4/4.
-
Opening the stop contact will interrupt:
-
the firing
-
the power supply to the parallel inputs and outputs
(only outputs for PSI 6101.321)
-
the power supply to the external unit.
1070 080 056-101 (99.09) GB
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