Possible operating mode of the electronic drive unit
● Operation without control unit
Operation without control unit
1. Connect the corresponding connection cable to the control input with bridges from the Pfeiff-
er Vacuum accessories or the supplied D-Sub mating plug.
2. Provide the current supply.
7.4 Operating mode display via LED
The LEDs indicate the basic operating and communication states.
LED A1 is visible from the outside during operation.
LED A2 is inside and only visible once the cover plate has been removed, i.e. for troubleshooting. LED
A2 is only active when the “Modbus” protocol is used.
LED
LED status
Display
Meaning
A1
Off
Vacuum pump switched off
On, constant, green
Vacuum pump switched on
No errors
On, constant, red
Vacuum pump switched on
Error
A2
Off
No communication
Flashes green
Communication is established (ready for operation)
Tbl. 8:
Behavior and meaning of the LEDs
7.5 Refilling operating fluid
WARNING
Danger of poisoning from toxic vapors
Igniting and heating synthetic operating fluid generates toxic vapors. Danger of poisoning if inhaled.
► Observe the application instructions and precautions.
► Do not allow tobacco products to come into contact with the operating fluid.
Prerequisite
● Vacuum pump switched off
Required tool
● Ring spanner
WAF 32
Required consumable
● Operating fluid
Required aids
● Funnel (optional)
Operation
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