HIMA A18 014 Extended Temperature Range



HIMA products give you maximum, long-term plant availability. To ensure this, we continually

modernize our product portfolio with new technologies. Compatible successor products ensure

your safety system continues to operate smoothly many years after installation. This reduces life

cycle costs, avoids unplanned downtime, and ensures investment protection for your assets.

HIQuad H41q/H51q was introduced to the market in 1997 as the third generation of central modules

for certified programmable safety systems. In 2018. the fourth generation of central modules was

introduced to ensure the sustainability of the HIQuad system family. The new central modules support

a wide variety of I/O modules from the previous generation. The combination of the reliable HIQuad I/O

modules and the new central modules is named HIQuad X. This guarantees maximum compatibility

for field installations and minimum modernization efforts.

Extensions, Upgrades, and Modernization

Systems, technology, and standards change continuously. To ensure the long-term safety and

availability of your plants, our experts will assist you to keep them up to date during operation.

As part of our modernization services, our experts support you with on-site analysis and advise

you on all options and technologies to keep your plant up to date. This includes consulting on

system upgrades, maintaining your equipment, and updating to compatible successor models.

Our modernization services include upgrade planning, logic conversion from ELOP II to SILworX,

and installing your systems in accordance with the latest safety standards.

Safety Function

The remote I/O is equipped with safety-related digital inputs and outputs. The input values

on the inputs are safely transmitted to the connected controller via safeethernet. The

outputs are safely assigned their values by the connected controller via safeethernet.

Safety-Related Digital Inputs

The remote I/O is equipped with 20 digital inputs. The state (HIGH, LOW) of each input is

signaled by an individual LED.

Mechanical contacts without own power supply or signal power source can be connected to

the inputs. Potential-free mechanical contacts without own power supply are fed via an

internal short-circuit-proof 24 V power source (LS+). Each of them supply a group of 4

mechanical contacts. Figure 1 shows how the connection is performed.

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