User manual

µC
2
SE process chiller +030220416 - rel. 2.2 - 25.01.2013
6.10 Heaters management
r43 defines the relationship between absolute set-point, intended as electric
heaters activation threshold and relative set-point, i.e. electric heaters activation
threshold referring to an operational set-point. For example, if r43 = 7, the anti-
freeze/support heater will activate below the value of r01-A04, instead of A04.
Regarding the activation set-points of the heaters, when the temperature measured
by the probe B1/B2 (see A06) drops below the value of the parameter A08/A11
the heater or heaters activates, if the respective outputs are set with the parameter
H11.
Par. Description
Def Min Max U.M.
r43 Heaters se
t
-point:
0=A04, A08, A11, P16, P19 absolute
1=A04, P16, P19 absolute, A08, A11 relative
2=A08, A11, P16, P19 absolute, A04 relative
3=P16, P19 absolute, A04, A08, A11 relative
4=A04, A08, A11 absolute, P16, P19 relative
5=A04 absolute, A08, A11, P16, P19 relative
6=A08, A11 absolute, A04, P16, P19 relative
7=A04, A08, A11, P16, P19 relative
7 0 7 -
Par. Description
Def
Min
Max
U.M.
A06
Auxiliary heater probe
0=Control probe (B1)
1=Anti-freeze probe (B2)
0 0 1 -
A08 Heater 1 set point (see r43)
5
A01 80 °C/°F
A08
Heater 1 relative se
t
point
(see r43)
2 0 20 °C/°F
A09 Heaters differential
2
0.3 50 °C/°F
A11 Heater 2 set point (see r43) 7 A01 80 °C/°F
A11
Heater 2 relative se
t
point
(see r43)
7
0 20 °C/°F
A08
B1or B2
ON
A09
OFF
A11
A09
Key
B1/B2 Support heaters probe
26