PULS YRM2.DIODE 24V 20A Redundancy Module Instruction Manual
- June 12, 2024
- PULS
Table of Contents
PULS YRM2.DIODE 24V 20A Redundancy Module
Read this first!
Before operating this device, please read this manual thoroughly and retain this manual for future reference! This device may only be installed and put into operation by qualified personnel. If damage or malfunction should occur during operation, immediately turn power off and send device to the factory for inspection. The device does not contain serviceable parts. The information presented in this document is believed to be accurate and reliable and may change without notice. For any clarifications the English translation will be used.
Risk of electrical shock, fire, personal injury, or death:
- Turn power off before working on the device. Protect against inadvertent re-powering.
- Do not open, modify or repair the device.
- Use caution to prevent any foreign objects from entering the housing.
- Do not use in wet locations or in areas where moisture or condensation can be expected.
- Do not touch during power-on and immediately after power-off. Hot surfaces may cause burns.
Product Description
The YRM2.DIODE is a redundancy module for building redundant power supply systems. It is equipped with two input channels and one output. The two inputs are decoupled by diodes. The device has a monitoring circuit included. Two LEDs and two relay contacts signal when one of the two DC-input voltages is not in range due to a non-functioning or disconnected power supply
Intended Use
This device is designed for installation in an enclosure and is intended for commercial use, such as in industrial control, process control, monitoring and measurement equipment or the like. Do not use this device in equipment where malfunction may cause severe personal injury or threaten human life. The redundancy module can be used with any type of power supply as long as the maximum output current ratings are not exceeded. It is suitable for power supplies with continuous overload current as well as any kind of intermittent (Hiccup) overload behavior.
Installation Instructions
Install the device in an enclosure providing protection against electrical,
mechanical and fire hazards.
Do not ground or earth the positive output pole which could prevent redundancy
in case of a ground failure. Ground the negative output pole, when needed.
Use only power supplies with a negligible output ripple voltage in the low
frequency range between 50Hz and 10kHz when used in marine applications
according to the DNV regulations.
Install the device onto a DIN rail according to EN 60715 with the input
terminals on the top of the device. Other mounting orientations require a
reduction in output current.
Make sure that the wiring is correct by following all local and national
codes. Use appropriate copper cables that are designed for a minimum operating
temperature of +60°C for ambient temperatures up to +45°C, +75°C for ambient
temperatures up to +60°C and +90°C for ambient temperatures up to +70°C.
Ensure that all strands of a stranded wire enter the terminal connection.
Unused screw terminals should be securely tightened.
The device is designed for pollution degree 2 areas in controlled
environments. No condensation or frost is allowed.
The enclosure of the device provides a degree of protection of IP20.
The input must be powered from a PELV or SELV source or an “Isolated Secondary
Circuit” in order to maintain a SELV or PELV output.
Check correct input polarity. The device will not operate when input voltage
is reversed.
The device is designed as “Class of Protection III” equipment according to IEC
61140.
A PE (ground) connection is not required. However, connecting the chassis
ground terminal to ground can be beneficial to gain a high EMI immunity.
The device is designed for convection cooling and does not require an external
fan. Do not obstruct airflow and do not cover ventilation grid!
The device is designed for altitudes up to 6000m. See additional requirements
in the product datasheet for use above 2000m.
Keep the following minimum installation clearances: 40mm on top, 20mm on the
bottom, 5mm left and right side. Increase the 5mm to 15mm in case the adjacent
device is a heat source. When the device is permanently loaded with less than
50%, the 5mm can be reduced to zero.
The maximum surrounding air temperature is +70°C. The operational temperature
is the same as the ambient or surrounding air temperature and is defined 2cm
below the device.
The device is designed to operate in areas between 5% and 95% relative
humidity
Installation Instructions for Hazardous Location Areas
The device is suitable for use in Class I Division 2 Groups A, B, C, D
locations and for use in Group II Category 3 (Zone 2) environments.
Hazardous Location classification: ATEX: EPS 11 ATEX 1 312 X, II 3G Ex ec nC
IIC T4 Gc
WARNING EXPLOSION HAZARDS!
Substitution of components may impair suitability for this environment.
Do not disconnect the device unless power has been switched off or the area is
known to be nonhazardous.
For Class I Division 2 Groups A, B, C, D locations only an altitude up to
2000m and the standard mounting orientation is allowed.
A suitable enclosure must be provided for the end product which has a minimum
protection of IP54 and fulfils the requirements of the EN 60079-0.
Functional Description
The device can supply any kind of loads, including unlimited capacitive and
inductive loads.
Do not apply return voltages from the load to the output higher than 60Vdc.
Both input voltages are monitored individually. The green Input-OK LEDs report
an input voltage above 21.5V for the corresponding input channel.
The Input-OK relays monitor the input voltages. The contact is closed, when
the Input-OK LED is on. Contact ratings: 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A for
resistive loads.
Technical data
All values are typical figures specified at 24Vdc input voltage, 20A output current, 25°C ambient temperature and after a 5 minutes run-in time unless otherwise noted.
Input voltage
Input voltage range
Input current| DC 24 – 48V
18 – 60Vdc
2x 10A
2x 7.5A
2x 16A| ±25%
Below +60°C ambient
At +70°C ambient
Up to 5 seconds
---|---|---
Output current
Maximum overload current| 20A
15A
32A
25A R.M.S.| Continuous, <+60°C
Continuous, at +70°C
Short term, up to 5s
In any overload or short circuit condition
Derate linearly between +60 and +70°C
Input to output voltage loss| 780mV
850mV| At 2x 5A input
At 2x 10A input
Power losses| 0W
8.8W
18W| At no load
At 2x 5A input
At 2x 10A input
Temperature range| -40°C to +70°C
Max. wire size (litz wire)
Wire size AWG
Max. wire diameter
Wire stripping length
Tightening torque| 4mm²
AWG 20-10
2.8mm
7mm
1Nm| Power terminals
Power terminals
Power terminals
Power terminals
Power terminals
Max. wire size (litz wire)
Wire size AWG
Max. wire diameter
Wire stripping length
Tightening torque| 1.5mm²
AWG 22-14
1.5mm
6mm
0.4Nm| Signal terminals
Signal terminals
Signal terminals
Signal terminals
Signal terminals
Size (wxhxd)
Weight| 32x124x117mm
350g| Without DIN rail
Functional diagram
Wiring scheme – 1+1 redundancy
Wiring scheme – n+1 redundancy
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