Foreseeable Misuse; Responsibilities Of The System Owner; Safety Instructions; Commissioning And Operation - Ross DM2 D Serie Instrucciones De Servicio

DM2D / DM2F | English

6.2 Foreseeable misuse

Risk of injury!
Misuse may result in injury or damage.
f The product must be used exclusively as intended.
Foreseeable misuse includes:
• Use in non-industrial applications/residential areas
• Use outside of the product limits defined in the technical data
• Unauthorised modifications
• Bypassing the safety function
• Use in reversible operation (reversing of supply and exhaust air)
• Vacuum operation

6.3 Responsibilities of the system owner

f Observe the information on assembly and operating conditions listed in
the operating instructions or the data sheet.
f Comply with the further requirements of ISO 13849 (e. g., CCF, DC, PL
if you intend to use the product in higher categories (2 to 4).
f Make sure that the maximum number of switching cycles (B
life T (typical assumption as per ISO 13849-1 = 20 years) is not exceeded.
M
If the expected number of switching cycles for a component exceeds the B
value during its period of use, suitable 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 principles 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.
f If you operate the DM2® double valve together with an electric two-hand
control, it must comply with the standard EN 574. Selection and installation
of this two-hand control must take place in accordance with the manufacturer's
specifications.

6.4 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 DM2D 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 DM2D 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

7 Assembly and Installation

Risk of injury due to installation whilst pressurised or with live parts!
Installation whilst pressurised or with electrical power switched on can result
in injuries due to sudden pressure build-up or electric shock.
f De-energise and de-pressurise the relevant system parts before installing
the valves.
f Secure the system to prevent it being switched back on again.
WARNING
) within the service
10D
CAUTION
Destruction of components!
Chemical substances can damage the surface, the markings and the seals
of the device.
f Install the valve such that it is protected against the effects of chemicals.
Damage to the device through storage at incorrect temperatures!
The storage temperature represents the permissible ambient temperature
and depends on the type of valve in question.
f Observe the temperature information in chapter 10 „Technical Data".
7. 1 Connecting the mechanics
The double valves described in these operating instructions may only be installed
by a qualified, trained professional. The product may only be used within the scope
of the "intended use" as described in these operating instructions. The cables and
cable connections as well as the electrical control for the double valves must comply
with the applicable safety regulations.
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7.2 Connecting the pneumatics and the electrics
r
Pneumatic connections 1 + 2 can be used on both sides. The delivery contents
include two blanking plugs for unused connections.
f Connect the compressed air supply to connection 1 and the load to connection
10D
2 (see Fig. 1).
Connection 3 is equipped with a silencer at the factory with type DM2D.
f Connect the electrics in accordance with Fig. 2 and 3. Sockets in accordance with
EN 175301-803 form A (previously DIN 43650, form A) for pilots a, b and reset
have to be ordered separately. The pressure switch includes a socket.

8 Commissioning and Operation

Damage to health due to loud noise!
Levels above 70 dB(A) may lead to damage to health!
f Always wear ear protectors when working on the product.
Before commissioning, the installation has to be carefully inspected by a qualified,
trained professional.
f Make sure that the technical data matches the operating criteria of the machine
and/or the pneumatic system.
f Always set the compressed air supply to a level that ensures that the minimum
operating pressure is adhered to (see section 10 „Technical Data").
The reset valve may only be actuated by a pulse (electrical, manual, or pneumatic)
of max. 3 seconds and with solenoids a + b switched off.
For pneumatic resets, the reset pressure must be higher than or equal
to the operating pressure!
f Before valve assembly and before initial commissioning, always actuate
the reset valve to switch the DM valve to its normal position.
In this switching position, the DM valve is ready to run.
ATTENTION
CAUTION
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