Siemens 6DR50 Series Operating Instructions Manual page 35

Please note the following before working on the control valve and when attaching the
positioner
Danger of injury.
• Prior to working on the control valve, you must move the control valve into a completely
• Make sure that the valve has reached the pressureless state.
• If you interrupt the pneumatic auxiliary power to the positioner, the pressureless position
• When mounting, observe the following sequence imperatively to avoid injuries or
Mechanical impact energy
In order to ensure the degree of protection of the housing (IP66), protect the housing
versions of the positioners listed here from mechanical impact energy:
• 6DR5..3; not greater than 2 Joule
• 6DR5..0; not greater than 1 Joule
• 6DR5..1 with inspection window; not greater than 1 Joule
NOTICE
Torque with NPT screwed gland
Device damage. The maximum torque of the cable gland must not be exceeded.
• To avoid damage to the device, you must hold the NPT adapter in place while screwing
SIPART PS2 with and without HART
Operating Instructions, 09/2014, A5E00074631-12
CAUTION
pressureless state. Proceed as follows:
– Depressurize the actuator chambers.
– Switch off the supply air PZ.
– Lock the valve in its position.
may only be reached after a certain waiting time.
mechanical damage to the positioner/mounting kit:
– Mount the positioner mechanically.
– Connect the electrical auxiliary power supply.
– Connect the pneumatic auxiliary power supply.
– Commission the positioner.
WARNING
the NPT gland into the NPT adapter. Refer to the section "Technical specifications >
Construction (Page 243)" for the torque value.
Installing/mounting
4.1 Basic safety instructions
33