Soft Start; Care And Maintenance; Disassembly And Exchange; Troubleshooting - Ross MCSE Serie Instrucciones De Servicio

ENGLISH
The following table shows an overview of LED displays with the corresponding function.
Display Type
LED Color
RUN Green Permanently illuminated
IN 1 Green Off
IN 1
Green Permanently illuminated
IN 1
Green Flashes quickly
IN 1
Green Flashes slowly
IN 2 Green Off
IN 2 Green Permanently illuminated
IN 2 Green Flashes quickly
IN 2
Green Flashes slowly
Out Green Off
Out
Green Permanently illuminated
Out Green Flashes slowly
ERR
Red Off
ERR
Red Flashes slowly
ERR
Red Flashes quickly

8.2.2. Soft Start

If the MCSE safety valve is activated, the operating line is pressurized. The time
required for the output pressure to reach approx. 50% of the input pressure can be
changed with the help of the "soft start function". For this, you must turn the adjustment
screw for the "soft start function" (see page 2).
If you turn the adjustment screw in a clockwise direction, the time required for the
output pressure to reach approx. 50% of the input pressure is increased. Turn the
adjustment screw in an anti-clockwise direction to reduce the time. By fully opening the
soft start, the soft start function could be disabled if not needed.
Note: The time interval is directly influenced by the volumes of the system that is
currently being filled. The time to reach 50% of the input pressure is longer in systems
with larger volumes than in systems with smaller volumes.

9. Care and Maintenance

Damage to the product due to the use of solvents and aggressive cleaning agents!
The product can be damaged if washed with a solvent or aggressive cleaning agent. The
chemical resistance of the valve material to such products is not guaranteed. Solvents
and aggressive detergents will destroy the surface, labeling and seals of the product.
f Make sure that no solvents and aggressive cleaning agents come into contact with
the valve.
Damage to the product due to washing at high pressures and temperatures!
The product will be damaged if you clean it with high pressure and/or at a high temperature.
f Make sure that the product is not cleaned with high pressure and/or at a high
temperature.
No special care is required for the MCSE safety valve. Note the following if you would
like to clean the valve:
• Check that all seals and plugs for the plug connections are firmly seated so that no
humidity can penetrate the MCSE safety valve during cleaning.
• Only clean the MCSE safety valve using a slightly damp cloth. Only use water to do
this and, if necessary, a mild detergent.
Risk of injury while working on a running system!
Working while the system is running can cause major injuries from moving machinery.
f Bring the system mode into a state in which working movements are no longer
possible. Wait until all moving machine parts come to a standstill, and protect the
system against being switched on.
In normal operation, the MCSE safety valve is maintenance-free. However to ensure
proper function, the MCSE safety valve must be actuated at least once per month.
The MCSE safety valve seals may age faster in aggressive ambient conditions. A
damaged seal can be recognized by parts of the seal visibly protruding from the
housing gaps. Defective seals will lead to pneumatic leaks.
• Regularly check that the seals are in perfect order.
8
© 2021, ROSS CONTROLS
®
Function
The MCSE safety valve is ready
Safety input 1/P not actuated
Safety input 1/P actuated
Time for synchronization exceeded
Second input S22 has not opened
Safety input 2/M not actuated
Safety input 2/M actuated
Time for synchronization exceeded
Second input S12 has not opened
MCSE safety valve in the non-activated state,
operating line is being exhausted
MCSE safety valve in the activated state
The MCSE safety valve is waiting for start
signal X2
No error
See "Signal sequence when a fault occurs"
See "Signal sequence when a fault occurs"
ATTENTION
WARNING
. All Rights Reserved.
• Immediately exchange the MCSE safety valve if the seals are defective.
• Check regularly whether all plug connectors are firmly fitted.
• Establish the maintenance intervals according to your ambient conditions and
enter them in the system-dependent maintenance plan.
• Observe the system-specific maintenance intervals.
In case of any maintenance requirements, it is advisable to replace the entire MCSE
safety valve as this is the only way of ensuring a life cycle value for the entire valve.
Note: The operator is responsible for determining the maintenance intervals.

10. Disassembly and Exchange

Risk of injury if disassembled under pressure or voltage!
Uncontrolled movement of the system components!
f Make sure that the system is not under pressure or voltage when you disassemble
the MCSE safety valve.
Contamination during disassembly!
During disassembly, greases or lubricant may escape from the MCSE safety valve.
f Make sure that the environment is not contaminated with greases or lubricant during
disassembly.
Disassemble the MCSE
1. Stipulate a signal on safety inputs 1/2 to deactivate the MCSE safety valve and to
exhaust the outlet line on outlet connection 2.
2. Switch off the 24 V DC supply.
3. Remove the connected plugs.
4. Switch-off the supply pressure and exhaust the supply line.
5. Remove the pneumatic lines.
6. Remove the valve fastening screws depending on the mounting type
This concludes the disassembly.
Exchange the MCSE
1. Disassemble the MCSE safety valve as described above.
2. Assemble a new MCSE safety valve as described in chapter "Assembly".

11. Troubleshooting

Risk of injury by dismantling the valve!
Pre-tensioned springs may suddenly be released when dismantling the valve.
f Never dismantle the valve.
f Do not attempt to perform any unauthorized repairs.
• Check the connections, operating voltage, and working pressure of the relevant
system part if malfunctions occur.
Additional help for malfunctions can be found in the following table:
Possible cause
Malfunction
Operating pressure is too
Pressure/flow level is
low
not reached or drops off
slowly
Leak on tubing
No output pressure on
output 2 and LED display
Incorrect control
differs from the normal
display (see below)
Device is not supplied with
RUN LED is OFF
a voltage
The corresponding safety
LED IN 1, IN 2 OFF
input does not have a signal
Control of signals IN 1 and
The IN 1, IN 2 LEDs
IN 2 outside of the
flash quickly
synchronization time
OUT LED flashes slowly No start signal on X2
An error has occurred in
ERR LED flashes
the device
MSCE Series Operating Instructions
WARNING
ATTENTION
WARNING
Remedy
Increase the operating pressure
Check tubing diameter
Check tubing and tubing connections
Troubleshooting using the LED
display (Normal state: RUN, IN 1, IN 2
and OUT illuminate, ERR is off)
Supply a voltage to the device
according to the instructions
Check the wiring and control of safety
inputs
Check signal sequence on IN 1 and
IN 2
Check the wiring and control of the
start signal
Establish the fault number using
the flash code and carry out
troubleshooting in accordance with
"Signal sequence when a fault occurs".
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