Altech Corp MRF102 Two Channel Electronic Circuit Breaker Instruction Manual
- May 15, 2024
- Altech Corp
Table of Contents
- Altech Corp MRF102 Two Channel Electronic Circuit Breaker
- Product Information
- Product Usage Instructions
- Frequently Asked Questions
- Product Description
- Safety and warning notes
- How to Install
- Drive a Channel
- LED indication
- Control and Programming
- Technical data
- Norms
- Accessory
- References
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
Altech Corp MRF102 Two Channel Electronic Circuit Breaker
Product Information
Specifications
- Product Name: MRF102 Two Channel Electronic Circuit Breaker
- Mounting: Din Rail or Panel Mounting
- Input Voltage: 12V or 24V
- Output Voltage: 0.2 V to 32 Vdc
- Maximum Current Consumption: 10 A
- Control Interface: Push Button and LED indicators
Product Usage Instructions
Installation
Mounting: The MRF102 can be mounted on a Din rail or panel using 4 screws (2.9×8-16).
Supply: Connect the device using the specified cable cross-sections for solid or stranded wires. Ensure proper torque and stripping length.
Drive a Channel
Turn On/Off: Use the push button to toggle channels on and off. LED indicators will show the status of each channel.
LED Indication
Verification: Check the trip current set for each channel and configure it if needed.
Control and Programming
Verify Trip Current: Press the set button for more than 2 seconds to check the trip current settings for each channel.
Set Trip Current: Press the push button for more than 2 seconds to set the trip current for each channel based on the number of orange LED blinks.
Frequently Asked Questions
Q: How do I reset the input voltage?
A: To reset the input voltage, ensure that the device is disconnected from the power source for at least 30 seconds before reconnecting.
Q: Can I use the MRF102 with a supply voltage other than 12V or 24V?
A: No, the MRF102 is designed for use with supply voltages of 12V or 24V only. Using a different voltage may damage the device.
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Product Description
The MRF102 2-channel electronic circuit breaker with Din Rail and Wall mounting is designed for current distribution and protection of 12V or 24V load circuits.
Safety and warning notes
- WARNING – Explosion Hazard Do not disconnect Equipment unless power has been switched off or the area is known to be non-hazardous.
- WARNING – Explosion Hazard. Substitution of components may impair suitability for class I, Division 2.
- WARNING – Switch off the system before connecting the module. Never work on the machine when it is live. The device must be installed in according to EN61010 or EN62368-1. The device must have a suitable isolating facility outside the power supply unit, via which can be switched to idle. Danger of fatal Injury!
- WARNING – The device is equipped whit an internal fuse. If the internal fuse blows Up (fails opens), it is most probable that there is a fault in the device. If this failure occurs, the device must be returned to the factory.
How to Install
Mounting
Din Rail or Panel Mounting
Fig. 1 shows a dimensional drawing of the MRF102. It is possible to mount the device on Din rail or in panel and fix it by 4 screws 2.9×8-16. There is no limit for the Panel thickness.
How to Supply MRF102
The MRF102 is supplied directly from the power source which provide power to
the load. The device it is protected by internal physic fuse, also in worst
case situations. The input rating is 8 – 35Vdc.
Device Connection (Fig.2)
The following cable cross-sections may be used:
Connection by the screw, type 2.5 mm2. Wiring terminal shall be marked to indicate the proper connection for the power supply. Use copper cables only, for supply connections, use wires suitable for at least 75°C.
Connection terminal and wiring
Drive a Channel
Turn On Channel
- On the first power up, all channel are OFF.
- To enabling channel 1(LED Blink Red for short time) push the set button for short time: one time; < 1 sec.
- To enabling channel 2(LED Blink Red for short time) push the set button for short time: two time; < 1 sec.
- Each channel could be enabled after a Switch off for Overload or Short circuit, (LED Red ON). When the LED Red flash for 3 time, the devise it’s ready to turn ON the channel. If the channel is ON, the device maintains in memory the state also without the power; this function it is not enabled if the device is in configuration mode.
Turn Off Channel
When the channel 1 is ON (LED Blink Green or Orange for short time) push
button for short time: one time and the channel turn OFF; < 1 sec. When the
channel 2 is ON (LED Blink Green or Orange for short time) push button for
short time: Two time and the channel turn OFF; < 1 sec. If the channel is OFF,
the device maintains in memory the state also without the power.
LED indication
- Led RED ON: the channel is in protection due to Overtemperature, Overcurrent, Over/Under voltage (<8.5V or >32.5V). The device could be in this situation for some sec. In this condition it is not possible turn ON the device.
- Led RED flashes three times for short time: the channel is OFF after switch protection, but is ready to be turned ON. Push the set button to turn ON the device.
- Led RED flashes one for short time, the channel is OFF but ready for turn ON. Push the set button to turn ON the device.
- Led GREEN blinks for short time: the channel is ON and the current through the channel is <80% of the tipping point switch.
- Led ORANGE blinks for short time: the channel is ON and the current through the channel is >80% of the tipping point switch. Config. Mode: One Led OFF and the second Led ORANGE blinks, in this condition it is enabled the procedure:
- Verify the trip current set for each channel
- Configure the trip current for each channel
Control and Programming
How to verify the trip current sett
Press the set button for more than 2 sec. until LED channel 1 start to blink
Orange.
- The number of Orange blink provide the number of Ampere set for the trip current: 1 Blink = 1A … 10 Blink 10A
- Press the push button for more than 2 sec. until LED channel 2 start to blink Orange.
- The number of Orange blink provide the number of Ampere set for the trip current: 1 Blink = 1A … 10 Blink 10A
- End the procedure by holding down the button for 2 seconds until the LEDs resume their regular flashing.
If the button is not pressed for 20 seconds, the procedure ends automatically and the LEDs resume their regular flashing.
How to set the trip Current
Press the push button for more than 2 sec. until LED channel 1 start to blink Orange.
-
Option: it is possible count the number of orange blinks according to the number of Ampere set for the trip current: 1 Blink = 1A … 10 Blinks = 10A
-
Press the push button for a number of time equivalent to the desired number of tripping Ampere.
-
Verify option: successively press the desired Ampere, the device will return the set number after 2 sec
-
Correction option: correction of the current setting by pressing one more time the set button: e.g., 6A + 1A more = 7A. When 10A is reached, the counter restart from 1A.
-
To confirm the New Trip Current setting, press the push button for 2 sec. until LED channel 2 start flashing orange.
Set the current limit for channel 2 in the same way as for channel 1. -
Confirm the new Trip Current of the channel 2 and finish the Configuration procedure by holding the button for 2 seconds until the LEDs start flashing regularly again.
-
Mandatory: to ensure the new value is set, the procedure must be completed. If the button is not pressed for 20 seconds, the procedure automatically ends and the LEDs resume flashing regularly. The device retains the old value.
Note: On the first power up the device is programmed at 3A for each channel.
Connection Diagram
Multiple Devices
PLC Fail Connection
CBI60 – MRF102 Driver
Technical data
Norms
Immunity and Emission
The CE mark in conformity to EMC 2014/30/EU: Electromagnetic Compatibility
Directive; 2014/35/EU: Low Voltage Directive; ROHS 2011/65/EU: Restriction of
the use of certain Hazardous Substances in Electrical and Electronic Equipment
(RoHS), as amended by 2015/863/EU
- EMC Immunity: EN61000-6-2
- EMC Emission: EN61000-6-3, EN 55022 ClassB
Electrical Safety for mounting
According to:
- Electrical Equipment for Machinery EN 60204
- Electrical safety (of information technology equipment) IEC/EN EN62368-1.
- Safety requirements for electrical equipment for measurement, control and Laboratory use IEC/EN 61010
Accessory
RTConn: connector cable for the connection to AUX1. It is possible drive the device through the ADELBus network.
Altech Corp.® 35 Royal Road Flemington, NJ 08822-6000 P 908.806-9400 F 908.806.9490 www.altechcorp.com