PISA11.CLASS2

PISA11-Series

Fig. 11-1 Functional diagram

Output

Current

Monitor

+ Output 1

Reset,

ON/OFF

Safeguard

for Minimum

Input Voltage

-

-

+

Failure

+ Output 2

Failure

+ Output 3

Failure

+ Output 4

Failure

Current

Limiter &

Shut-down

Manager

Input

Status

12

11

13

14

Outputs-

OK

Contact

Input

Reset,

ON/OFF

Reset,

ON/OFF

(+)

(-)

Output

OK

Synchro-

nization

15

16

Sync.

Redundant

Emergency

Switch

NEC-CLASS-2

Controller

Loads such as decelerating motors and inductors can feed voltage back to the PISA11 protection module. This feature

is also called return voltage immunity or resistance against Back- E.M.F. (Electro Magnetic Force).

The protection module is resistant and does not show malfunctioning when a load feeds back voltage up to 30Vdc to

the protection module. It does not matter whether the protection module is on or off.

The protection module has no capability to absorb energy. Internal diodes (integrated body diodes of the Mosfets)

directs the voltage and energy to the power supply, which is connected on the input side of the protection module.

The power supply defines the amount of energy which can be absorbed.

May 2014 / Rev. 1.7 DS-PISA11.CLASS2 - 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

10/19