Technical Data - Ross DM2 D Serie Instrucciones De Servicio

DM2D / DM2F | English
8. 1 Conducting a function test
Test
1. Solenoid 'a' actuated
Valve ready to run again.
2. Solenoid "b" actuated
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
Valve ready to run again.
If this function test provides deviating results, see section 5 „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.
9 Dismounting and Removal
Risk of injury due to dismounting whilst pressurised or with live parts!
Dismounting 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 dismounting
the valves.
f Secure the system to prevent it being switched back on again.

10 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 —m, recommended: class 6 / 5 —m), oiled or oil-free (mineral oils
according to ISO 3448/ISO-VG, viscosity class 32).
Pressure range: 2 to 8 bar. Ambient temperature: -10°C to 50°C.
Medium temperature: 4°C to 80°C.
For temperatures below 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 (based on DIN EN 60068-2-6):
• Frequency: 10 Hz to 55 Hz.
• Amplitude: 0.35 mm ±0.05 mm.
Minimum switching frequency: 1 x per month, to ensure proper function
Max. switching frequency: 30 Hz measured without volume. The switching
frequency decreases depending on the volume to be controlled.
Mounting orientation: Any, preferably vertical.
Monitoring: Dynamic, cyclical, 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 EN 175301-803 form A (previously DIN 43650,
form A). Protection class according to EN 60529 IP 65.
Result
Valve is in lockout position, slight leakage
at connection 3.
Actuate reset!
Valve is in lockout position, slight leakage
at connection 3.
Actuate reset!
Valve switches properly.
Valve switches to lockout position, slight
leakage at connection 3.
If the valve remains deactivated, slight
leakage at connection 3.
Actuate reset!
CAUTION
Status indicator unit optional (pressure switch):
NO/NC contacts – 5 A 250 VAC, or 5 A 30 VDC.
Standard voltages: 24 V DC, 110 V 50-60 Hz, 220/230 V 50-60 Hz, other
voltages on request.
Voltage tolerance: ±10%.
B value according to ISO 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)]: DM2D = 91, max. pulse sound pressure level
at the loudest measuring point when exhausting the valve with a corresponding
silencer. The DM2F series is delivered without a silencer. The sound pressure level is
influenced by the individual systems used for reduction of noise emissions. Use of the
product without a noise silencer is not recommended.
Flow rates:
DM2D
Size Size
1 J 2
2 1.9
4 2.4
8 4.0
12 7.7
30 17.6
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
11 Order Key (Example)
DM2 D D A 4
PRODUCT
Series: .................. D
Series: .................. F
THREAD
BSP ......................... D
NPT ........................ N
without baseplate ... X
CHANGE STATUS
Sizes 4 ,8 ,12 ,30 ...... A
Size 2 (only series D) B
SIZE
2 (only series D) 2
4 ........................ 4
8 ........................ 5
12 ..................... 6
30 ..................... 8
BASE PLATE CONNECTION
G 1/4 inlet - G 1/4 outlet ...... Size: 2 ..................... 0
G 3/8 inlet - G 3/8 outlet ...... Size: 2 ..................... 1
G 1/2 inlet - G 1/2 outlet ...... Size: 4 ..................... 2
G 1/2 inlet - G 3/4 outlet ...... Size: 4 ..................... 3
G 1/2 inlet - G 3/4 outlet ...... Size: 8 ..................... 4
12 Disposal
Dispose of the valve in accordance with the applicable statutory regulations in your
country.
= 20 million switching cycles
10D
DM2F
kv value
2 J 3 1 J 2
3.2 –
5.8 2.4
10.9 4.0
18. 1 7.7
46.7 17.6
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
2 A 2 1 AXB
ATEX IDENTIFICATION
AXB ATEX variant for solenoid coils with
terminal box
AXB ATEX variant for solenoid coils with
potted cable
ERROR INDICATOR
1 .............................. yes
X ................................. no
RESETTING UNIT
1
2
4
VOLTAGE
A ........................24 VDC
B ..................... 110 VAC
C ..................... 220 VAC
D ..................... 12 VDC
E ..................... 24 VAC
F
G 1 inlet - G 1 outlet .................. Size: 8 .................... 5
G 1 inlet - G 1 outlet ..................... Size: 12 .................. 6
G 1 inlet - G 1 1/2 outlet ............... Size: 12 .................. 7
G 1/2 inlet - G 2 outlet .................. Size: 30 .................. 8
N/A (without base plate) ............ all sizes.................. X
6
2 J 3
–
8.0
13.0
22.5
101.0
Hold [VA]
10.4
23.2 W
10.4
............... pneumatic
.................. electric
.................. manual
..................... 48 VAC