Burkert Type 8611 - Manual (Page 89)

89
FunctionsoftheConfigurationLevel
Schematic representation of a 2-state control relatively to the set-point value:
SETP
PV
SETP + HYHI
SETP - HYLO
HYHI
HYLO
24 V
0 V
24 V
0 V
24 V
0 V
24 V
0 V
inverted control (cooling)
direct control (heating)
time
Process value Set-point value
Active HIGH
(NC valve)
Active HIGH
(NC valve)
Active LOW
(NO valve)
Active LOW
(NO valve)
Process actual value
Figure 66: B_O1, 2_P; 2-state control relatively to the set-point value
english
Type 8611