Perspic CAN-ISO-2500 Galvanic CAN Bus Isolation Device User Manual

CAN-ISO-2500 Galvanic
CAN Bus Isolation Device
User Manual CAN-ISO-2500
Galvanic CAN bus Isolation Device

Overview

The CAN-ISO-2500 is a galvanic isolation device for use on CAN Bus networks in mobile or stationary applications. The device features 2500 V isolation between the HV and LV sides and supports CAN Baudrate of up to 1 Mbit/s.
The CAN-ISO-2500 is available with M12 5-pin connector pigtails or M12 connectors directly on the case and features flange-style holes for mounting to a surface. Two case options are available. The ABS case is rated IP54 (protection  against dust and splashing water) while the Polycarbonate option is rated IP68 (Protection against dust and long-term submersion in water) and features an extended temperature range.

Features

• Up to 2500 V Galvanic Isolation
• Up to 1 Mbit/s data rate
• Automatically adjusts to CAN baud-rates, no need to set data rate
• Wide input voltage range of 6-28v DC
• IP54 standard rating, IP68 optional

Applications

CAN Bus data transmission is ubiquitous on vehicles and mobile equipment and is a popular protocol for industrial communications applications. Many CAN data busses are powered by a single power supply; however, on busses with different power supplies voltage transients can travel across the data bus causing signal integrity problems and possibly destroy CAN connected devices. Alternately, high precision data acquisition systems may require isolation from the main power supply to ensure measurement accuracy. Either of these scenarios will require high-quality galvanic isolation for  proper operation.
Multiple Power Supplies on single CAN Network
For scenarios where CAN devices are connected to different power supplies (see Figure 1) voltage differences on the CAN network can cause data transmission issues and even damage components. The CAN-ISO-2500 can be used to  isolate different components on the bus and eliminate the possibility of damage caused by voltage differences.

Specifications

Physical – ABS Enclosure

Dimension| Measure (pigtails) (Figure 2)| Measure (Bulkhead) (Figure 3)
---|---|---
Width| 5.8 cm| 5.8 cm
Length| 13 cm (measured from strain reliefs) 8.6 cm (case)| 8.6 cm
Height| 3 cm| 4.2 cm (no connector)
Weight| 110 g| 87 g
Cable Length| 15 cm| On Case
IP Rating| IP54| IP54
Flange Mounting Holes| Rectangular pattern 4x 5mm through holes, countersunk (see Figure 4)| Rectangular pattern 4x 5mm through holes, countersunk (see Figure 4)

Physical – Polycarbonate Enclosure

Electrical

Environmental – IP56 ABS Case

Environmental – IP68 Polycarbonate Case

Protections
• Reverse Polarity protected

Installation Considerations

The CAN-ISO-2500 adds 150 ns of propagation delay to the CAN data signals, see table below for CAN data bus lengths with CAN Isolator installed. For proper operation ensure maximum CAN bus length does not exceed the following values with one CAN-ISO-2500 installed.

Bit Rate| Typical Max Bus Length| Recommended Max Bus length with CAN-ISO-2500
---|---|---
1 Mbit/s| 40 m| 10 m
500 kbit/s| 110 m| 80 m
250 kbit/s| 240 m| 210 m
125 kbit/s| 500 m| 470 m
50 kbit/s| 1300 m| 1270 m
Bitrates below 50 kbit/s the propagation delay is negligible

Tests and Certifications
RF Emissions: Tested per CISPR22 Edition 5.2 2006-03 Class A
EMC: Tested per IEC 61000-4-2 Edition 3.2 2010-04 Level 2
ESD Immunity: Tested per IEC 61000-4-2 Edition 2.0 2008-12 Class 2
Galvanic Isolation: tested 2.5kV between HV and LV connector pins
Wiring and Connections
The CAN-ISO-2500 comes standard with two waterproof M12 A-Code barrel type connectors. The CANISO-2500 contains a 120 Ohm termination resistor on both the input and output and can be placed anywhere in the middle of an existing CAN data bus. Pinouts are consistent across all M12 connector types.

Pigtail Option
The pigtail option has a Male M12 connector on the LV side and Female M12 connector on the HV side.
The wires are each 15 cm long. The LV side has a female M12 connector and the HV side has a male M12 connector. See Figure 2.
Bulkhead Option
The bulkhead option features two Male M12 connectors directly on the case. See Figure 3.
M12 connector part numbers
Use the following parts or equivalents to connect to the CAN-ISO-2500. Any M12 A keyed connector will connect properly. Below are some examples that will fit.

Wiring Option: Deutsch/Amphenol plugs
Deutsch/Amphenol connectors are optional on any pigtail design.
Contact us for assembly part numbers with Deutsch/Amphenol plugs.

Note: standard wiring harness limited to -20..80C ambient temperatures.
Contact us for extended temperature range wiring harness.
Wiring Option: Custom Connectors
Contact us for more details on custom wiring harnesses and connectors
CAN-ISO-2500 Part Numbers

Part Number| IP Rating| Wiring Option| Input Voltage Range| Temperature Range| Connector
---|---|---|---|---|---
10-21001| IP54| Pigtail| 5..28V| -20..80 C| M12 Male/Female
10-21002| IP54| Bulkhead| 5..28V| -20..80 C| M12 Male/Male
10-21003| IP54| Pigtail| 5V| -20..80 C| M12 Male/Female
10-21022| IP68| Pigtail| 5..28V| -40..105 C| M12 Male/Female
10-21023| IP68| Bulkhead| 5..28V| -40..105 C| M12 Male/Male

Troubleshooting

No CAN data

• Check Input Voltage (7-30v DC)
• Confirm CAN HV/LV wiring pin out
• Check power status LED inside cover

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>