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Electrical connection
7.2.2
External power supply
Configuration B
7-10
PST 6101.321 / PSI 6101.321
The power supply to PSI 6101.321 / PST 6101.321 is provided by an external unit (exter-
nal supply). Several jumpers have to be positioned to enable the external power supply.
The power supply to the timer is thus independent of the welding network.
For configuration B, the external power supply must satisfy the following requirements:
-
Maximum ripple <5 %, tolerance -15 % / +20 %.
-
PSI 6101.321
-
Making current: approx. 2.0 A, duration approx. 10 ms, plus the current of
the inputs and outputs (with PSI 6101.321 / PST 6101.321 only the output
current) and the current of the external unit connected to X5.
-
continuous current: approx. 1.5 A, plus the current of the inputs and outputs
(with PSI 6101.321 / PST 6101.321 only the output current) and the current
of the external unit connected to X5.
-
PST 6101.321
-
Making current: approx. 1.5 A, duration approx. 10 ms, plus the current of
the inputs and outputs (with PSI 6101.321 / PST 6101.321 only the output
current) and the current of the external unit connected to X5.
-
continuous current: approx. 1.0 A, plus the current of the inputs and outputs
(with PSI 6101.321 / PST 6101.321 only the output current) and the current
of the external unit connected to X5.
Functions:
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No interfaces are interrupted when the welding network is switched off:
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communication via I/O interfaces is possible
-
communication between the timer and the programming terminal, e.g. pro-
gramming and visualization.
-
Preferably used in networked systems
-
only one non-floating 24 V DC supply for the entire system
-
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 / PST 6101.321)
-
the power supply to the external unit.
1070 080 056-101 (99.09) GB
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