User manual

35
r01 r01 + r29
on
off
r01 r01 + r02
on
off
1 2
5 5
ENGLISH
µC
2
SE process chiller +030220416 - rel. 1.1 - 27.04.2010
- Differential during the low load condition in chiller mode
r29: This parameter represents the new differential considered by the controller in chiller mode during
the low load condition.
Specifi cally, r02 is replaced by r29.
This also has the meaning of freecooling differential.
- Differential during the low load condition in heat pump mode
r30: This parameter represents the new differential considered by the controller in heat pump mode
during the low load condition.
Specifi cally, r04 is replaced by r30.
This also has the meaning of freeheating differential.
Fig. 5.b.m
Key:
1. chiller;
2. chiller in low load;
5. temperature.
- Electric heater set point relationship
r43: defi nes the relationship between the absolute set point, considered as the activation threshold for
the electric heaters, and the relative set point, that is, the activation threshold for the electric heaters
referred to a working set point (set point sent by µAD, r01 or r04 or from time band) depending on the
various applications and the mode, cooling or heating, and more precisely:
r43= 0 A4, A8, A11, P16, P19 absolute values
r43= 1 A4, P16, P19 absolute values; A8, A11 relative values
r43= 2 A8, A11, P16, P19 absolute values; A4 relative value
r43= 3 P16, P19 absolute values; A4, A8, A11 relative values
r43= 4 A4, A8, A11 absolute values; P16, P19 relative values
r43= 5 A4 absolute value; A8, A11, P16, P19 relative values
r43=6 A8, A11 absolute values; A4, P16, P19 relative values
r43=7 A4, A8, A11, P16, P19 relative values
- Maximum value of calculated set point in relative regulation
r45: for the relative set point function, there is a maximum limit. When the control works in relative
mode, the set point calculated is lmited by r45.
- Minimum value of calculated set point in relative regulation
r46: for the relative set point function, there is a minimum limit. When the control works in relative mode,
the set point calculated is lmited by r46.
• Firmware parameters: (F-r*)
These parameters cannot be set (display only:
H95: software version of I/O board;
H96-H97: software version of Driver 1, 2;
H98: software version of the expansion;
H99: software version of the µC
2
SE controller.
Functions available with the clock board
The alarm log is only active and operative if the clock board is fi tted. The terminal shows whether the
clock board is fi tted by displaying the following parameters:
- RTC hours
t01: RTC hours
- RTC minutes
t02: RTC minutes
- RTC day
t03: RTC day
- RTC month
t04: RTC month
- RTC year
t05: RTC year
The alarms are only shown on the local display.
The controller saves the signifi cant events that stop (alarms) or limit (warnings) the operation of the unit.
Up to 25 events can be saved, highlighting:
— Event code;
— Start hours;
— Start minutes;
— Start day;
— Start month;
— End hours;
— End minutes;
— End day;
— End month.