Service And Repairs; Commissioning And Operation; Disassembly And Exchange - Aventics PM1 Instrucciones De Servicio

AVENTICS | PM1 | R412018626–BAL–001–AH | English
Overview of PM1 pressure switch, ATEX certified
Pneumatic flange connection
1 O-ring Ø 5x1.5
(included in delivery contents)
2 Cylinder screw M5x30 ISO 1207 (2x);
+0.5
M = 2.5 Nm
A
(included in delivery contents)
Pneumatic connection, internal thread G1/4
+0.1
1 Connection G1/4, M = 12
A
Material numbers can be found in the AVENTICS online catalog
(www.aventics.com/pneumatics-catalog).
Product identification
O Observe the product information on the product and packaging.
Identification on the name plate
1 Internal plant ID
2 Country of manufacture
3 CCC mark
4 CE mark
5 Material number
6 Operating pressure range
7 Max. permissible voltage
8 Max. current consumption
1) The first four digits of the 7-digit date code show the year and the last two show the week.
5 Assembly
O Let the product acclimatize for several hours before commissioning, otherwise,
water may condense in the housing.
Danger of injury if assembled under pressure or voltage!
Assembling when under pressure or electrical voltage can lead to injuries and
damage to the product or system components.
O Make sure that the relevant system part is not under voltage or pressure
before you assemble the product.
O Protect the system against being switched on.
Assembling the pressure switch and connecting
the pneumatics
1. Make sure that the system is not under voltage or pressure.
2. Connect the pressure switch with the pressure system:
– Flange connection M5: M
A
+1
– Connection G1/4: M = 12
A
Electrically connecting the pressure switch
Wire identification corresponds with the contact assignment in Fig.
The installation of electrical devices must be carried out in accordance with
applicable national regulations and performed or supervised by an electrical
specialist (in compliance with TRBS 1203 or equivalent).
6

Commissioning and Operation

Danger of explosion!
There is a damage of ignition in explosive areas if the product is not
commissioned properly.
O Observe the warnings under "ATEX information on explosion protection"!
3
3 Adjustment screw for fine
adjustment, self-holding
4
Nm 2 Adjustment screw for fine
adjustment, self-holding
5
9 Max. power consumption
10 Serial number
11 Manufacturer's address
1)
12 Date code
13 Switching pressure
14 Wiring diagram
15 Manufacturer logo
CAUTION
+0.5
3
= 2.5 Nm ( )
4
Nm ( –1)
DANGER
Risk of injury due to uncontrolled actuator movements when the pneumatics
are switched on!
There is a danger of personal injury if the system is in an undefined state.
O Put the system in a defined state before switching it on.
System is operating under pressure!
Incorrect installation could damage the pressure switch or the system and cause
serious injury.
O Before start-up, check that all connections, ports and components have been
correctly installed.
Commissioning the pressure switch
Proceed as follows to commission the pressure switch:
1. Check whether the pressure switch is assembled correctly (see chapter 5
"Assembly" and chapter 2 "Notes on Safety", especially "ATEX information on
explosion protection") and make sure that all pressure switch connections are
properly connected.
2. Secure the components to be switched to prevent unintentional responses,
and apply voltage.
3. Apply the compressed air to the system.
4. Check that the switch outputs are functioning properly.
Setting the switching point
W Factory setting: pressure switch = 3 bar; vacuum switch = –0.4 bar
W The adjustment screw is self-holding.
The switching point is continuously adjustable, even during operation.
O To check the switching point, an external pressure gauge must be used.
To set the switching point to a higher pressure:
1. Turn the adjustment screw (1) to the right (+).
To set the switching point to a lower pressure:
2. Turn the adjustment screw (1) to the left (–).
7

Service and Repairs

Cleaning and servicing
Danger of explosion due to electrostatic charge!
Cleaning with a dry cloth may cause the surface to become electrostatically
charged. This can lead to an explosion in explosive areas.
O Use only a water-moistened cloth to clean the pressure switch! Never use
aggressive solvents or detergents.
O Do not use high-pressure cleaners for cleaning.
Maintenance
The pressure switch is maintenance-free.
O Contact the AVENTICS service department in case of technical problems.
8

Disassembly and Exchange

6
.
Danger of explosion!
Disassembly and exchange when under pressure or voltage can lead
to explosions in explosive areas.
O Make sure that the relevant system part is not under voltage or pressure
before you assemble/disassemble the product.
O Protect the system against being switched on.
1. Make sure that the system is not under voltage or pressure.
2. Disconnect the electrical connection.
3. Loosen the mounting screws on the pressure switch.
4. Remove the pressure switch from the pressure system.
9 Disposal
O Dispose of the product in accordance with the currently applicable regulations
in your country.
CAUTION
7
DANGER
DANGER
5