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Service Mode / Manual Control
18. SERVICE MODE / MANUAL CONTROL
By default, the control head provides the following (e.g. for service purposes):
• a magnetic manual control which is easily accessible from the outside for Solenoid Valve 1 (2/A1)
*)
as well as
• a mechanical manual control accessible when the hood is open on each equipped solenoid valve.
18.1. Magnetic manual control
Markings for
magnetic
manual control
Fig. 33: Manual control on the basis of encoded magnetic fields
Activation/deactivation is possible using PC software. Connection to the PC is via the Service interface. Details
are described in the "PC software" manual under the "SYSTEM / Start-up" menu option.
Irrespective of the signal of the higher-level control, the magnetic manual control sets the output of Solenoid
Valve 1
*)
electrically to an ON signal and, if control pressure is present, switches the 2/A1 output
*)
.
However, if the output of solenoid valve 1
*)
is activated by the control (ON signal), this switching state
cannot be set to an OFF signal with the manual control!
Caution!
When the magnetic manual control (Solenoid Valve 1
*)
) is activated:
• the peripheral fault bit is set for the AS interface design.
• The mode is switched to "Manual control active" for the DeviceNet design and can be read out.
• The feedback signals (positions 1-3, external initiator) function as per normal operation.
Always observe the safety guidelines and the system states!
2
*) both solenoid valves are actuated simultaneously for the model for double-acting actuators (see Chapter
"15. Design for Double-Acting Actuators" on page 76)
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