Commissioning And Operation; Technical Data - Ross DM1 C Instrucciones De Servicio

1 2®
DM C, DM C

7 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 8 „Technical Data").
The reset valve (not available with DM
trical, 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 re-
set valve to switch the DM valve to its normal position.
In this switching position, the DM valve is ready to run.
7.1 Conducting a function test
Test
1. Solenoid "a" actuated
De-energize DM
Valve ready to run again.
2. Solenoid "b" actuated
De-energize DM
Valve ready to run again.
3. Solenoids "a" and "b"
actuated within ∆t < 0.1 s
4. Solenoids "a" and "b"
actuated with ∆t > 0.1 s
5. After fault, permanent signal at
reset valve – solenoids "a" and "b"
or only "a" or only "b" actuated
De-energize DM
Valve ready to run again.
If this function test provides deviating results, see section 4 „Service, Repair,
and Maintenance".
Each asynchronous movement of the piston elements > 0.1 s leads to the valve
switching off. This could happen for a variety of reasons, such as:
• Defective piston seals,
• Main valve elements experiencing a switching delay due to dirt or resinous oil,
Insufficient electrical signals to valve solenoids; suitable voltage not available,
•
• Receipt of signals at solenoids not synchronous,
• Pilot valves experiencing a switching delay due to damaged components, dirt, or
resinous oil,
• excessive water build-up in the valve.
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CAUTION
1
C) may only be actuated by a pulse (elec-
Result
Valve is in lockout position,
slight leakage at connection 3.
1 2®
C! Actuate reset for DM C!
Valve is in lockout position,
slight leakage at connection 3.
1 2®
C! Actuate reset for DM C!
Valve switches properly.
Valve switches to lockout position,
slight leakage at connection 3.
If the valve remains deactivated, slight
leakage at connection 3.
1 2®
C! Actuate reset for DM C!

8 Technical Data

Design: Two redundant 3/2 directional main valve elements in seat-valve design,
normally closed. Pneumatically operated. Combined spring and air reset.
Actuation: Solenoid-operated pilot control.
Medium: Compressed air (neutral gases), filtered in acc. with ISO 8573‑1 (class 7
/ 40 µm, recommended: class 6 / 5 µm), oiled or oil-free (mineral oils according to
DIN 51519/ISO-VG, viscosity class 32).
Pressure range: 30 to 120 psig (2 to 8 bar).
Ambient temperature: 15° to 122°F (-10° to 50°C).
Medium temperature: 40° to 175°F (4° to 80°C). For temperatures below (40°F)
4°C, the compressed air must be dried according to ISO 8573-3, class 7.
Shock test (based on DIN EN 60068-2-27):
• Acceleration: 30 g.
• Shock duration: 18 ms.
• Shock waveform: Half-sine.
• Vibration test (vibration based on DIN EN 60068-2-6):
• Frequency: 10 to 55 Hz.
• Amplitude: 0.35 mm ± 0.05 mm.
Min. switching frequency: 1x per month, to ensure proper function
Max. switching frequency: 30 Hz measured without volume. The switching fre-
quency decreases depending on the volume to be controlled.
Mounting orientation: Any, preferably vertical.
Monitoring: Dynamic, cyclic, internal – with any change in switching state and in
any switching state.
Solenoids: Version as per VDE 0580. Designed for continuous operation
Electrical connection according to DIN EN 175301-803 form A (previously
DIN 43650, form A). Protection class according to DIN 400 50 IP 65.
Status indicator unit optional (pressure switch): NO/NC contacts –
5 A 250 V AC, or 5 A 30 V DC.
Standard voltages: 24 V DC, 110 V AC 50-60 Hz, 220/230 V AC 50-60 Hz,
other voltages on request.
Voltage tolerance: ±10%.
B value according to DIN 13849‑1 and ‑2: Service life parameter measured
10
according to ROSS Engineering Standard, Laboratory Test Procedures Section 8:
B = 10 million switching cycles, B
10
Sound pressure level [dB(A)]: DM1C /DM2C
level at the loudest measuring point when exhausting the valve with a correspon-
ding ROSS silencer
Power consumption:
Pilot valve/ 24 V DC
reset valve
[W]
Pilot valve 5.8 W
(sizes 2, 4, 12, 30)
Pilot valve (size 8) 15 W
Reset valves 5.8 W
9 Order Key (Example)
DM1C / DM2C D
PRODUCT
THREAD
BSP ............................ D
NPT ............................ N
Without base plate ...... X
REVISION LEVEL
SIZE
2 ................................. 2
4 ................................. 4
8 ................................. 5
12 ............................... 6
30 ............................... 8
BASE PLATE CONNECTION
G 1/4 inlet – G 1/4 outlet ............................ 0 (1340 / 2420)
G 3/8 inlet – G 3/8 outlet ............................ 1 (1950 / 2420)
G 1/2 inlet – G 1/2 outlet ............................ 2 (2990 / 2990)
G 3/4 inlet – G 3/4 outlet ............................4 (4390 / 4390)
(Flow rate values Qn at 6 bar ∆p = 1 bar [l/min] Connections: 1-2 / 2-3)
ENGLISH
= 20 million switching cycles
10d
®
= 91, max. impulse sound pressure
110 V AC 220/230 V AC
Pull-in [VA] Hold [VA] Pull-in [VA]
15.8 12.8 14.4
35.4 22.9 35.7
15.8 12.8 14.4
A 2 0 A 2 1
STATUS INDICATOR
1 .................................... Yes
X ..................................... No
RESET TYPE
1 .........................
2
..............................
3
..........................
After switching the
compressed air on again
VOLTAGE
A ............................. 24 VDC
B ............................ 110 VAC
C ..................... 220/230 VAC
D ..............................12 VDC
G 1 inlet – G 1 outlet
..................................
G 1 inlet – G 1 outlet
..................................
G 1 1/2 inlet – G 2 outlet
........................
N/A (without base plate)
....................................................
Hold [VA]
10.4
23.2 W
10.4
Pneumatic
Electric
Automatic
5 (4400 / 4400)
6 (8500 / 8500)
8 (21900 / 21900)
X
5