About This Documentation; Notes On Safety - Ross DM1 C-Serie Betriebsanleitung

ENGLISH

1 About this Documentation

These instructions contain important information for the
safe and appropriate assembly and commissioning of the
product.
f Read these instructions all the way through, particularly
section 2 "Notes on Safety", before working with the
product.
Additional documentation:
• SISTEMA libraries
• DGUV (formerly BG) certificate: German professional
association
• Technical documents
For more information see last page for contact information, or
visit www.rosscontrols.com.
f In addition, observe
national regulations on accident prevention and on
environmental protection.

2 Notes on Safety

The product has been manufactured according to the
accepted rules of current technology. Even so, there is a
risk of injury or damage if the following safety instructions
and the warnings given in this instruction manual are not
observed.
2.1 Intended Use
1 2®
The type DM C / DM
(DM valves) are safety components in accordance with
Machinery Directive 2006/42/EC and bear the CE marking.
Their intended use is to control ventilation and exhaust in
compressed air systems or similar applications, as well as
to avoid unexpected switch-on and release of energy in
pneumatic tubing systems and end devices in the industry.
f See section 8 „Technical Data" for the standards and
test values complied with and adhered to by the product.
See the declaration of conformity for product-relevant EC
directives.
2.1.1 Safety Function according to ISO 13849
DM valves are self-testing, redundant systems in accordance
with the requirements listed in ISO 13849‑1 and ‑2. Their
pneumatic "fail‑safe exhaust" safety function is ensured even
in case of a valve failure (e.g., caused by wear, contamination,
or similar).
For the safety function, DM valves feature control
technology properties to category 4 / Performance Level e
in accordance with ISO 13849‑1 and ‑2, if integrated
correctly into the control system.
All DM valves are equipped with a "Dynamic Monitoring"
function (self-contained). Series DM
memory (fault memory) and reset functions.
The product has been engineered and manufactured
according to the fundamental and proven safety principles
of ISO 13849‑1 and ‑2.
2.1.2 Common Cause Failure – CCF
Common cause failures result in a loss of the safety
function as both channels fail simultaneously in this case.
Apply the following measures to prevent common cause
failures:
• Observe the permissible values for vibration and impact
loading
• Observe the temperature range
• Observe the compressed air quality as specified in the
technical data
• Observe the permissible operating pressure
4 © 2021, ROSS CONTROLS
all applicable local
C electropneumatic double valves
2®
C feature additional
® . All Rights Reserved.
2.2 Foreseeable Misuse
Warning: Misuse may result in injury or damage.
Foreseeable misuse includes:
• Use in non-industrial applications/residential areas
• Use outside of the product limits defined in the technical
data
• Unauthorized modifications
• Bypassing the safety function
• Use in reversible operation (reversing of supply and
exhaust air)
• Vacuum operation
2.3 Responsibilities of the System Owner
f Observe the information on assembly and operating
and
conditions listed in the operating instructions or the data
sheet.
f Comply with the further requirements of ISO 13849
(e.g., CCF, DC, PL
product in higher categories (2 to 4).
f Make sure that the maximum number of switching cycles
(B ) within the service life T
10d
per ISO 13849‑1 = 20 years) is not exceeded. If the
expected number of switching cycles for a component
exceeds the B
exchange intervals have to be specified.
f Switch the valve at least once a month to ensure its
proper function.
f Make sure that the fundamental and proven safety prin-
ciples in accordance with ISO 13849 for implementation
and operation of the component are complied with.
f Make sure that the permissible switch-on and switch-
off pulses for feedback-free operation of the pneumatic
devices are observed.
2.4 Safety Instructions
f When implementing safety measures against switch-off
surges, check whether these extend the valve's switch-
off time.
f If required, determine the run‑on time (possible "reach
into hazard area") of a machine equipped with DM
valves and a plug at connection "3" of the valve or at
the switching point of the machine's overrun monitoring
(if available).
f Check if the valve's electrical connection cables have to
be routed separately.
f In case of high levels of machine vibrations, use
appropriate vibration-reducing elements when mounting
the valve.
f Avoid overvoltages as these result in solenoid burnout.
The DM valves come with a special silencer that complies
with the requirements of ISO 13849 and which features a
design that largely prevents clogging.
f Only use DM valves with a properly mounted silencer.
f Make sure that the silencer's flow capacity is not
restricted as this would impair valve performance.
f If required, replace the silencer exclusively with a
corresponding ROSS model.
3 Prerequisites for Use of the Product
f Make these operating instructions available to the
engineer and assembly technician of the machine/
system in which the product will be used.
f Keep these operating instructions during the entire
product life cycle.
, software) if you intend to use the
r
(typical assumption as
M
value during its period of use, suitable
10d

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1 2®
DM C, DM C