2 Safety
HIMax System
HI 801 001 E Rev. 4.01
Page 10 of 122
2 Safety
All safety information, notes and instructions specified in this document must be strictly
observed. The product may only be used if all guidelines and safety instructions are
adhered to.
This product is operated with SELV or PELV. No imminent danger results from the product
itself. The use in Ex-Zone is permitted if additional measures are taken.
2.1 Intended
Use
This chapter describes the conditions for using HIMax systems.
2.1.1 Scope
The safety-related HIMax controllers are certified for use in process controllers, protective
systems, burner systems and machine controllers.
All HIMax input and output modules (I/O modules) can be operated with an individual
processor module or with several redundant processor modules.
When implementing safety-related communications between various devices, ensure that
the overall response time does not exceed the fault tolerance time. All calculations must be
performed in accordance with the rules specified in Safety Manual HI 800 003 E.
Only connect devices with safe electrical isolation to the communications interfaces.
Application in accordance with the 'De-Energize to Trip Principle'
The automation devices have been designed in accordance with the 'de-energize to trip'
principle.
A system that operates in accordance with the 'de-energize to trip principle' does not
require any power to perform its safety function.
Thus, if a fault occurs, the input and output signals adopt a de-energized, safe state.
Application in accordance with the 'Energize to Trip Principle'
The HIMax controllers can be used in applications that operate in accordance with the
'energize to trip' principle.
A system operating in accordance with the 'energize to trip' principle requires power (such
as electrical or pneumatic power) to perform its safety function.
When designing the controller system, the requirements specified in the application
standards must be taken into account. For instance, line diagnosis for the inputs and
outputs may be required
Use in Fire Alarm Systems
All HIMax systems with analog inputs are tested and certified for used in fire alarm systems
in accordance with DIN EN 54-2 and NFPA 72. To contain the hazard, these systems must
be able to adopt an active state on demand.
The operating requirements must be observed!
2.1.2 Non-Intended
Use
The transfer of safety-relevant data through public networks like the Internet is not
permitted unless additional security measures such as VPN tunnel or firewall have been
implemented to increase security.
With fieldbus interfaces, no safety-related communication can be ensured.
The use under environmental conditions other than those specified in the following section
is not permitted.
Summary of Contents for HIMax
Page 1: ...SYSTEM HIMax System Manual...
