PISA11

PISA11-Series

Large input capacitors of drives, monitors or other similar loads can result in an unintended shutdown of the module

when trying to turn-on such loads. This especially can occur after a reset or by turning on a load via the push button or

the external signal input. The PISA protection module is designed to be exceptionally compatible with such types of

loads. The module can turn-on as much capacitance as possible and comprises several different protection mechanisms

to protect against an unintended shutdown or damage of the unit.

The permissible capacitor sizes which can be connected to the output of the PISA module depends on the load current

itself as well as on the characteristic of the load.

The following tables show two typical cases (case A and case B) for the permissible capacitors, which can be connected

on the outputs without shutdown of the protection module. The listed values are valid for the entire temperature

range.

Case A: All outputs are loaded.

The minimum values are worst-case figures for the permissible capacitors which are defined with an additional

constant current load and with the maximum permissible total current of the PISA protection module. See also the

parameter list below the table.

The typical values are defined with an additional resistive load. See also the parameter list below the table.

Permissible Capacitors

PISA11.401

PISA11.402

PISA11.403

PISA11.404

(4x1A)

(4x2A)

(4x3A)

(4x4A)

Per channel

typ.

48mF

94mF

69mF

57mF

min.

41mF

43mF

22mF

11mF

All four outputs together

typ.

135mF

124mF

69mF

57mF

min.

94mF

43mF

22mF

11mF

Permissible Capacitors

PISA11.406

PISA11.410

PISA11.203206

PISA11.206212

(4x6A)

(4x10A)

(2x3A, 2x6A)

(2x6A, 2x12A)

For channel 1 & 2

typ.

42mF

33mF

43mF

34mF

min.

9mF

8mF

11mF

8mF

For channel 3 & 4

typ.

42mF

33mF

48mF

33mF

min.

9mF

8mF

12mF

8mF

All four outputs together

typ.

42mF

33mF

48mF

33mF

min.

9mF

8mF

12mF

8mF

Parameters for typical values

Parameters for minimum values

PISA11.401

0.5A resistive load per output

1A constant current load per output

PISA11.402

1A resistive load per output

2A constant current load per output

PISA11.403

1.5A resistive load per output

3A constant current load per output

PISA11.404

2A resistive load per output

4A constant current load per output

PISA11.406

3A resistive load per output

5A constant current load per output

PISA11.410

5A resistive load per output

5A constant current load per output

PISA11.203206

1.5A resistive load for outputs 1 & 2

3A constant current load for outputs 1 & 2

3A resistive load for outputs 3 & 4

6A constant current load for outputs 3 & 4

PISA11.206212

3A resistive load for outputs 1 & 2

5A constant current load for outputs 1 & 2

6A resistive load for outputs 3 & 4

5A constant current load for outputs 3 & 4

May 2014 / Rev. 1.7 DS-PISA11 - data sheet -

All parameters are specified at 24Vdc input, 25°C ambient temperature and a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278-0

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