Digital Power Amplifier
Series VRD350 and VRD355Installation Manual
43
IA VRD UK.INDD RH 02.06
Parker Hannifin GmbH & Co. KG
Hydraulic Controls Division
Note
All screens are to be earthed over a large areal! Earth amplifier with short lines! Bridge unused analogue inputs to analogue 0V!
In the case of terminal names with a number of letters, the terminals are bridged on the amplifier.
If no electrical isolation is required (e.g. isolated supply from PLC and amplifier), terminal 32z must be bridged with 32bd and terminal
2d with 26bd.
Wiring diagram for proportional DC valves, external closed loop
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