Installation
51
300314330_002_C7 - 05/2021 - © Leybold
Fig. 3.10 Main and control circuit wiring DRYVAC DV 450/650 (-r)
Main and Control Circuit Wiring DRYVAC 650 S
< 1 > Connected using sequence input signal (S1 to S6) from NPN transistor.
Default: sink mode (0V com).
< 2 > Use only the +24V internal power supply in sinking mode.
The source mode requires an external power supply.
Exhaust pressure switch*
Fault reset*
Pt 1000
Temperature
sensor
Digital
Output
Warning*
Digital
Output
Failure*
Leybold
Baseblock
Pt 1000 Analog Input
Temperature limiter*
< 1 > Connected using sequence input
signal (S1 to S6) from NPN transistor.
Default: sink mode (0V com).
< 2 > Use only the +24V internal power
supply in sinking mode.
The source mode requires an external
power supply.
DIP switch S4 changes the func-
tionality of analog input A2. When
DIP switch S4 is set to P the func-
tion is PTC input. When DIP switch
S4 is set to M the function of analog
input A2 is multi-function input.
RS 485 interface
see next page
DV 450/650 and 450/650-r
