Puls PISA-B-812-B4 - User Manual

PISA-B-812-B1
PISA-B-812-B4
Apr. 2021 / Rev. 0.1 DS-PISA-B-812-Bx-xx-EN www.pulspower.com 1 / 20
All parameters are specified at 24Vdc input voltage, 8x5A output currents, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
ELECTRONIC FUSE
8X 24V, 2X 1-12A, 6X 1-10A
•
Eight Current Controlled Outputs
•
Adjustable Output Currents for Each Channel
•
Selective Tripping of Overloaded Channels
•
Compatible even with large Capacitive Loads
•
Output Currents Displayed Live on LED Matrix
•
Remote Reset or Reset via Pushbuttons
•
Common Signaling Relay Contact for Tripped
Channels (PISA-B-812-B1)
•
Digital Coded Signal Output for Tripped Channels
(PISA-B-812-B4)
•
Parameter Settings can be Locked by PIN-Code
•
ON/OFF Feature for Each Individual Output
•
Easy Wiring - Distribution Terminals for Negative Pole
•
3 Year Warranty
GENERAL DESCRIPTION SHORT-FORM DATA
The PISA-B devices are DIN rail mountable
eight channel protection modules with integrated
electronic fuses for 24V systems. They distribute the
current of a large power source to eight output
channels each of lower current and therefore allowing
for smaller wires to be used.
The output current of each channel can be set
individually. Channel 1 and 2 are optimized for loads
with large input capacitances. Connect such loads to
these channels to avoid false tripping or unexpected
switch-off such loads.
The PISA-B-812-B1 is equipped with a common
tripping signaling relay contact that reports tripped
channels, while the PISA-B-812-B4 has a digital coded
signal output built in for this function.
All PISA-B devices are equipped with push-in
terminals, which are optimized for automated wiring.
The mechanically robust housing is made of a high-
grade, reinforced molded material on the front and
of an aluminum body, which permits surrounding
temperatures up to +70°C.
Input voltage DC 24V -20%/+25%
Required input voltage
for turning-on of outputs
19.6Vdc
Input current 40A
Internal consumption 40mA PISA-B-812-B1
35mA PISA-B-812-B4
Adjustable
1/2/3/4/6/8/10/12A CH1 and CH2
Nominal output current
1/2/3/4/6/8/10A CH3 to CH8
40A Below +60°C ambientSum current all channels
30A At +70°C ambient
Derate between +60°C and +70°C
Current limitation
CH1-CH2 200% For 1A setting
150% For 2 - 8A settings
130% For 10 - 12A settings
CH3-CH8 50A
Tripping characteristics Slow or Fast Selectable
Tripping delay
CH1-CH2 2ms – 2s At short circuit
CH3-CH8 <10ms At short circuit
CH1-CH8 1.1s For slow tripping at 1.5x
nominal current
CH1-CH8 0.22s For fast tripping at 1.5x
nominal current
Max load capacitance capability
CH1-CH2 100mF Per channel
CH3-CH8 20mF Per channel
Voltage drop per channel
CH1-CH2 125mV For 10A load
CH3-CH8 165mV For 10A load
Standby losses 1W
Power losses 10.8W At 8x 5A load
Temperature range -25°C to 70°C
Size (w x h x d) 52x124x130mm Without DIN rail
Weight 370g / 0.82lb
ORDER NUMBERS MAIN APPROVALS
Description: Electronic Fuse PISA-B-812-Bx-xx
Order Number:
PISA-B-812-B1 Common signaling relay contact
PISA-B-812-B4 Digital coded signal output
Accessories:
BUS-BAR1-L102: A set for 2 modules
BUS-BAR1-L155: A set for 3 modules
BUS-BAR1-L500: Single piece L=500mm
For details and a complete approval list, see chapter 20.
UL 2367 UL 61010-2-201 IEC 61010
IEC 62368 planned

Summary

General Description

Order Numbers

Short-Form Data

Main Approvals

Terminology and Abbreviations

Intended Use

Installation Instructions

Typical Wiring Scheme

DC Input

Output

Output Tripping Characteristics

Control and Monitoring Features

Parameter Mode

Explains parameter mode for settings and status display on the LED matrix.

Changing Trip Currents and Characteristic

Details how to adjust trip currents and characteristics, including PIN protection.

Digital Coded Interface

Alarm Relay Contact

Reset Input

Efficiency and Power Losses

Functional Diagram

Front Side and User Elements

Terminals and Wiring

Lifetime Expectancy

MTBF

EMC

Environment

Safety Features and Protection Features

Approvals and Fulfilled Standards

Regulatory Compliance

Physical Dimensions and Weight

Accessories

Power Connection - Power-Bus-Bars

Describes power-bus-bars for connecting PISA-B modules and distributing 24V supply.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The PULS PISA-B-812-B1 and PISA-B-812-B4 are DIN rail mountable electronic fuse modules designed for 24V systems. These devices distribute current from a single power source to eight output channels, each with individually adjustable current settings, allowing for the use of smaller gauge wires.

Function Description:

The PISA-B modules act as intelligent electronic fuses, protecting 24V systems by selectively tripping overloaded channels. They feature eight current-controlled outputs. Channels 1 and 2 are optimized for loads with large input capacitances, helping to prevent false tripping or unexpected shutdowns. The PISA-B-812-B1 model includes a common signaling relay contact to report tripped channels, while the PISA-B-812-B4 model offers a digital coded signal output for the same function.

Important Technical Specifications:

• Input Voltage: DC 24V, with a range of 19.2-30Vdc. The required input voltage for turning on outputs is typically 19Vdc (max 19.6Vdc).
• Input Current: Maximum 40A at fully loaded outputs.
• Internal Consumption: Typically 40mA for PISA-B-812-B1 and 35mA for PISA-B-812-B4 (stand-by current with no load).
• Nominal Output Current: Adjustable for each channel. Channels 1 and 2 can be set to 1/2/3/4/6/8/10/12A, while channels 3 to 8 can be set to 1/2/3/4/6/8/10A. Factory setting for all channels is 1A.
• Sum Current All Channels: Maximum 40A below +60°C ambient, derating to 30A at +70°C ambient.
• Current Limitation (CH1-CH2): 200% for 1A setting, 150% for 2-8A settings, and 130% for 10-12A settings.
• Current Limitation (CH3-CH8): 50% (overcurrent shutdown behavior only).
• Tripping Characteristics: Selectable Slow or Fast mode.
  • Slow Mode Tripping Delay: Typically 1.1s at 1.5x nominal current (all channels).
  • Fast Mode Tripping Delay: Typically 0.22s at 1.5x nominal current (all channels).
  • Short Circuit Tripping Delay: 2ms-2s for CH1-CH2, <10ms for CH3-CH8.
• Max Load Capacitance Capability: 100mF per channel for CH1-CH2, 20mF per channel for CH3-CH8.
• Output Leakage Current (when switched off): Max 2mA (typ 1.2mA) for CH1-CH2, max 50µA for CH3-CH8.
• Turn-on Delay of Outputs: Typically 750ms (period between applying input voltage and turning on all outputs). Channels switch on in delayed steps to avoid high peak currents on the 24V supply.
• Voltage Drop per Channel (typ. at 10A load): 125mV for CH1-CH2 (other channels not loaded), 190mV for CH1-CH2 (all channels loaded with 5A), 165mV for CH3-CH8 (other channels not loaded), 210mV for CH3-CH8 (all channels loaded with 5A).
• Power Losses: 1W at no output loads, 10.8W at 8x 5A load.
• Efficiency: Typically 98.9% at 8x 5A output load.
• Temperature Range: -25°C to +70°C.
• Dimensions (w x h x d): 52x124x130mm (without DIN rail).
• Weight: 370g / 0.82lb.
• Isolation Voltage (Reset Input): Galvanically isolated from the rest of the device.
• Alarm Signal (PISA-B-812-B1): Relay contact, max 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A (resistive load).
• Digital Coded Alarm Signal (PISA-B-812-B4): Opto-coupler type output, low ohmic for start bit and tripped channels. Signal sequence starts with 200ms start bit, followed by 100ms gap and 100ms signal per channel, repeated every 1900ms.
• Terminals: Push-in terminals (IP20 finger safe).
  • Input: Max 16mm² solid/stranded, 10mm² with ferrules (AWG 20-4).
  • Output: Max 2.5mm² solid/stranded, 1.5mm² with ferrules (AWG 24-12).
  • Signal: Max 2.5mm² solid/stranded, 1.5mm² with ferrules (AWG 24-12).
• Lifetime Expectancy: Determined by electrolytic capacitors, up to 15 years (131,400h).
• MTBF (Mean Time Between Failure): Statistical representation of device reliability.

Usage Features:

• LED Matrix Display: Provides information on measurement, set parameters, and errors. It has two modes: measurement mode (showing actual current values in percent of set value) and parameter mode (showing set tripping currents).
• Control Buttons:
  • SET Button: Used for switching between modes, saving settings, and in combination with channel control buttons for special functions.
  • Channel Control Buttons (CCB1-CCB8): Used to adjust individual channel settings, switch channels on/off, and restart tripped channels.
• Individual Output ON/OFF: Each output can be switched on or off by pushing its corresponding control button for longer than 50ms.
• Remote Reset: Tripped channels can be restarted either by pushing the corresponding channel control button for longer than 1s or by applying a voltage (10-30Vdc for >1s) to the reset input (pins 11-12).
• Parameter Lock: Settings for tripping currents and characteristics can be protected with a 4-digit PIN code using a special key combination (SET + CCB1).
• Power-Bus-Bars: Optional accessories (BUS-BAR1-L102, BUS-BAR1-L155, BUS-BAR1-L500) are available to connect multiple PISA-B modules for shared 24V supply, simplifying wiring.
• Easy Wiring: Equipped with push-in terminals for automated wiring and distribution terminals for the negative pole.
• Robust Housing: Made of high-grade, reinforced molded material on the front and an aluminum body, allowing for ambient temperatures up to +70°C.
• Convection Cooling: Designed for convection cooling, no external fan required. Minimum clearances: 40mm top, 20mm bottom, 5mm left/right (15mm if adjacent device is a heat source). No clearance needed between multiple PISA-B modules.

Maintenance Features:

• No User-Serviceable Parts: In case of damage or malfunction, the unit should be sent to the factory for inspection.
• Packaging Recycling: Packaging and packaging aids should always be recycled. The product itself should not be disposed of as domestic refuse.

Puls PISA-B-812-B4 Specifications