PISA11

PISA11-Series

This relay contact is closed when the input voltage is sufficient and the outputs are not shutdown.

Threshold voltage

typ.

21.4Vdc

Required voltage to power the relay and to close

the relay contact. The outputs must also not be

shutdown.

Contact ratings

max.

30Vdc, 1.0A

Resistive load

max.

30Vac, 0.5A

Resistive load

min.

1mA at 5Vdc

Galvanic isolation

nom.

500Vac

Test voltage: Signal path to power path

This signal input is galvanically isolated with an integrated optocoupler and works in the same manner as the reset

and ON/OFF button. The ON/OFF function has no safety feature included.

In a failure mode (outputs have shutdown), the outputs can be turned on again by

applying a voltage for more than 1 second.

5.1V

3mA

Inhibit

In normal mode (outputs have not shutdown), a short (> 50ms) voltage pulse will turn

all outputs ON or OFF.

The unit will be shipped (factory setting) with the outputs turned-on.

Signal voltage

max.

30Vdc

Signal current

typ.

3mA

Active current limited

max.

6mA

active current limited

Threshold voltage levels

min

6Vdc

Voltages above this level will trigger the inhibit or

max.

10Vdc

reset.

Galvanic isolation

nom.

500Vac

Test voltage: signal path to power path

If multiple PISA modules are used on the same power supply, it is recommended to connect the sync. bus of all

modules together. If one unit shuts down due to the protection function of the input voltage protection circuit

(safeguard), all other modules will shutdown too. This avoids a false interpretation of which output channel caused

the problem. If the sync. terminals are not linked, the module with the highest safeguard protection voltage level

(caused by tolerances) would shutdown

first regardless whether the failure was

caused by this module or not.

1 2 3 4

Outputs

Input

+

-

-

sync.

16

15

14

13

12

11

Reset

+

-

OK

PISA11

Input

L1 L2 L3 PE

QT40.241

Power

Supply

Output

+

-

1 2 3 4

Outputs

Input

+

-

-

sync.

16

15

14

13

12

11

Reset

+

-

OK

PISA11

1 2 3 4

Outputs

Input

+

-

-

sync.

16

15

14

13

12

11

Reset

+

-

OK

PISA11

1 2 3 4

Outputs

Input

+

-

-

sync.

16

15

14

13

12

11

Reset

+

-

OK

PISA11

Please note:

If the cause for the shutdown was an over-

current of one individual channel only this

module will shutdown and the other

modules will stay on. In this case the sync.

line has no impact on the other modules.

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

Germany

11/23