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PISA11.402
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Catalog excerpts

PISA11.402 - 1

PISA11 PROTECTION MODULE 24V, 4 OUTPUTS PROTECTION MODULE One Input and Four Current Controlled Outputs Ensures Sufficient Supply Voltage for Critical Loads even in the Event of an Fault Protects Small Cable Sizes against Overload Hassle-free Turn-on of Loads with Large Input Capacitors NEC Class 2 Compliant (1A and 2A Model) Wide Temperature Range between -25°C and +70°C On/Off Function of Outputs Compact Design, Width only 45mm Remote Monitoring and Control Functions 3 Year Warranty GENERAL DESCRIPTION SHORT-FORM DATA This protection module fulfills two basic functions. First it distributes the current of a large power source to four lower current output channels and therefore allows for smaller wires to be used. The second function is to permit only so much current on the outputs that the input voltage of this unit (which corresponds to the output voltage of the power supply) does not fall below 21V. Input voltage Input voltage range Input current Number of outputs Output currents This ensures a safe and an uninterrupted supply voltage for sensitive equipments, such as PLCs, controls or sensors, when they are connected directly to the same power supply as the PISA module. Less critical loads that are not affected to short voltage interruptions or that could even be the cause of a fault on the 24V power supply are connected to one of the four current PLC, controls DC 24V controlled (sensitive loads) Power PISA Protection Module Supply output A1 Motor 1 channels of the Relays, Solenoids A2 PISA module. A3 Displays A4 At no load See order information Input voltage protection levels Temperature range -25°C to +70°C Operational -40°C to +85°C Storage Type of current Active current limitation followed limitation by a shutdown Dimensions 45x75x91mm *) WxHxD *) Add 13mm in depth for signal connector. ORDER NUMBERS Protection module Please note: An additional, NEC Class 2 optimized module (PISA11.CLASS2), can be found in a separate datasheet. 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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PISA11.402 - 2

PISA11 PROTECTION MODULE 24V, 4 OUTPUTS The information presented in this document is believed to be accurate and reliable and may change without notice. The housing is patent by PULS (US patent No US D442,923S). No part of this document may be reproduced or utilized in any form without permission in writing from the publisher (PULS GmbH). This also applies to all kinds of electronic publishing. A figure displayed with the AC or DC before the value represents a nominal voltage with standard tolerances (usually ±15%) included. E.g.: DC 12V describes a 12V battery disregarding whether it is...

Open the catalog to page 2
PISA11.402 - 3

PISA11 PROTECTION MODULE 24V, 4 OUTPUTS 1. INTENDED USE This device is designed for installation in an enclosure and is intended for the general use such as in industrial control, office, communication, and instrumentation equipment. Do not use this protection module in equipment, where malfunction may cause severe personal injury or threaten human life. This device is designed for use in hazardous, non-hazardous, ordinary or unclassified locations. 2. PRODUCT DESCRIPTION This protection module fulfills two basic functions. First it distributes the current of a large power source to four...

Open the catalog to page 3
PISA11.402 - 4

PISA11 PROTECTION MODULE 24V, 4 OUTPUTS This device is designed for convection cooling and does not require an external fan. Do not obstruct airflow and do not cover ventilation grid. The standard mounting orientation is input terminals on the bottom and output terminals on the top. Do not use the unit in other mounting orientations. Keep the following installation clearances: - Top and bottom: min. 40mm on top, 20mm on the bottom - Left and right: min. 0mm if the total output current of the PISA module is less than 15A min. 6.4mm if the total output current is equal or higher than 15A and...

Open the catalog to page 4
PISA11.402 - 5

PISA11 PROTECTION MODULE 24V, 4 OUTPUTS 4. INPUT Input voltage Input voltage range Turn-on voltage Turn-on delay of outputs Input voltage protection level *) Stand-by input current *) ±25% Absolute maximum continuous input voltage with no damage to the PISA module Required input voltage for turning-on the outputs Period between applying the input voltage and turning on the outputs. All outputs will be turned-on at the same time. Below this voltage level, outputs will shutdown. Stand-by current with no load current on the outputs Voltage dips below this value can occur for maximal 200μs. May...

Open the catalog to page 5
PISA11.402 - 6

PROTECTION MODULE 24V, 4 OUTPUTS Output current limitation*' min. 9A 9A 16.6A 16.6A Voltage drop"' per output typ._41 mV_83mV_75mV_101mV Output leakage current ***' typ. 0.4mA 0.4mA 0.4mA 0.4mA Output current limitation*' min. 20.5A 20.5A 20.5A 20.5A Output leakage current ***' typ. 0.4mA 0.4mA 0.4mA 0.4mA *) The current limitation value for the sum of all four output currents. This current can be drawn from each individual output regardless whether it is a 1A, 2A, 3A, 4A, 6A,10A or 12A output. According to the specified ampacity of the outputs, the current can flow for a shorter or longer...

Open the catalog to page 6
PISA11.402 - 7

□IfUlEOISIOnj PISA11-Series PROTECTION MODULE 24V, 4 OUTPUTS I 6. CURRENT LIMITATION AND SHUTDOWN BEHAVIOR_ The PISA11 protection module comprises one common limitation and switching element for all four outputs. In a protection event, all four outputs limit the current or shutdown at the same time. The following reasons can cause a limitation of the output currents or a shutdown of the output channels: 1) The output current of one or more output channels was too high. 2) The sum of the output current of all four output channels was exceeded. 3) The outputs needed to be shutdown in order to...

Open the catalog to page 7
PISA11.402 - 8

PISA11 PROTECTION MODULE 24V, 4 OUTPUTS Shutdown behavior to avoid under-voltage situations on the supply voltage A further limitation of the output current activates when the supplying power source can not deliver enough current to support all loads without bringing the power source into overload followed by a voltage drop. In such an event, the voltage dependent current limitation of the input stage of the protection module is activated (safeguard circuit). This safeguard circuit acts like a valve only permitting so much current so that the supply voltage does not fall below 21V. The...

Open the catalog to page 8

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