Installation, Operating & Maintenance Instructions
Series 615 DN 63-100 (I.D. 2.5“ - 4”), RS232
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel +41 81 771 61 61 Fax +41 81 771 48 30 [email protected] www.vatvalve.com
290227EA
2011-06-24
25/79
3.4 Behavior in case of power failure
Reaction of valve:
Valve position before
power failure:
Without Power Failure Option (PFO)
615 . . - . . G . - . . . .
615 . . - . . A . - . . . .
615 . . - . . T . - . . . .
615 . . - . . V . - . . . .
With Power Failure Option (PFO)
615 . . - . . H . - . . . .
615 . . - . . C . - . . . .
615 . . - . . U . - . . . .
615 . . - . . W . - . . . .
Any
Valve remains at current position.
Valve will close or open depending
on valve configuration *).
Default is not defined.
Display indicates F.
*) Provided that battery pack of the VAT controller is charged. Charging time after power up is 2 minutes max..
All parameters are stored in a power fail save memory.