Festo Контроллер крайних положений SPC11 - Manual (Page 26)

1. Installation instructions for the DGCI or DDLI
1-14
Festo P.BE-SPC11-DGCI-EN en 1406d
If the DGCI or DDLI is ordered with screw connectors – modu-
lar design feature “QR:”
• Work port 2 of the proportional directional control valve
must be connected to the drive connection of the screw
connector with blue releasing ring.
• Work port 4 of the proportional directional control valve
must be connected to the drive connection of the screw
connector with black releasing ring.
1.5 Notes on installing the electronic components
Caution
Incorrect or missing earthing can cause interference.
Connect the DGCI-... drive with low impedance (short
cable with large cross-sectional area) to the earth poten-
tial, if the drive is not mounted on an earthed machine
stand.