Erstellt am: 14.07.2020
Erstellt durch: RT
Geändert am: 11.01.2021
Geändert durch:RT
ROTECH Antriebselemente GmbH
Tel.: +49(0) 7243-5931-0
http://www.rotech.de
Fax: +49(0) 7243-5931-31
E-Mail: [email protected]
Seite/sheet 6 von 6
Operating manual
Limit switch box type DRZ
Type of protection: flame proof enclosure
6. Connection of solenoid valves
Depending on their design the switch-boxes offer the possibility to additionally connect up to two solenoid valves on the terminal block.
You may only wire solenoid valves with approval for the required Ex-zone. At some limit switch boxes it is not possible to additionally
wire solenoid valves.
Consider the instruction manual and the explosion protection labeling of the solenoid valve.
If you want to wire solenoid valves additionally, act as follows:
1. Device must be switched to zero-potential.
2. Remove the blind plugs and replace it by a certified cable gland acc. point 3.
3. Unfasten cover screws and open housing cover.
4. Lead the system cable through the cable gland and wire it on the terminal block.
The manual of the cable glands must be regarded!
Please note the wiring diagram in the technical data sheet.
The wiring diagram can also be found inside the housing cover.
5. Refasten housing cover (fastening torque of the screws tightness class min. 8.8: 5 Nm)
7. Maintenance
Repairs of the flameproof joints and threads für cable glands are not allowed.
Long-time outdoor usage can cause gaskets to become brittle after some time. Safe operation can only be guaranteed with leak-proof
boxes
.
Gaskets should be exchanged immidiately when they are damaged, or at least after five years.
Gaskets may be replaced by qualified personell only.
Gaskets can be ordered at Rotech Systemkomponenten anytime.
→
→
→
