Installation, Operating & Maintenance Instructions
Series 650 DN 350 (I.D. 14”), CC-Link
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel +41 81 771 61 61 Fax +41 81 771 48 30 [email protected] www.vatvalve.com
286241EA
2010-10-11
12/86
2.6 Electrical
connection
2.6.1 Ground
connection
Recommendation for ground strap between controller and system (chassis)
Material
L (Length max.)
B1 (min.)
B2 (min.)
d1 (
∅
)
d2 (
∅
)
copper tinned
200 mm
25 mm
25 mm
4.5 mm
customized
Note: Connection plates of ground strap must be total plane for a good electrical contact!
Note: The connection point at chassis (PE) must be blank metal (not coated).
It is also possible to connect the ground strap at system chamber if it is well connected to PE.
Note: Avoid low chassis cross section to the system PE connection. (Min. same cross section as ground strap)
d1
B1
Controller
Master
Controller
Slave(s)
Recommendation
ground connection
Slave: AWG 12
(3mm
2
)
System
Chassis (PE)
(Protective Earth)
B2
d2
L
Ground strap
PE