Bell-gossett S14334B Technologic 5500 Series Variable Primary P Manual do Utilizador descarregar pdf (Página 18)

Variable Unit Description Default Value Range Field Value

AFD Fail s Proof timer prior to setting the AFD fail alarm 20 0-999

Pr Tm

Pump Fail s Proof timer prior to setting the pump fail alarm 30 0-999

Pr Tm

O.L. Fail s Proof timer prior to setting the O.L. fail alarm 3 0-999

Pr Tm

Reset Tm s Time delay between pressing the RESET key and 10 0-999

restarting the pumps in variable speed mode, allows

for pump deceleration

Table 13: Alarm Variables

4.3.1.4 EOC Destage

From the Stage/Destage Menu, shown in section

4.3.1, press ALTERNATION/4 and ENTER to get to

the EOC Destage screen shown below.

Destage Flow: ##%

Destage Pr Tm: ##s

Tm Forced Destg: #m

Ok ? (Y/N)

To edit the fields, press NO/0 and ENTER. To return

to the Stage/Destage Menu, shown in section 4.3.1,

press YES/7 and ENTER. See Table 11 below for a

description of the EOC Destage variables.

4.3.2

PID

From the System Setup Menu, shown in section 4.3,

press SETPOINT/2 and ENTER to get to the PID

screen shown below.

PID-P ### PID-I #

PID-D #

Ramp Timer ###s

Ok ? (Y/N)

To edit the fields, press NO/0 and ENTER. To return

to the System Setup Menu, shown in section 4.3,

press YES/7 and ENTER. See Table 12 below for a

description of the PID variables.

4.3.3

Alarms Setup

From the System Setup Menu, shown in section 4.3,

press SETUP/3 and ENTER to get to the Alarms

Setup screen shown below.

AFD Fail Pr Tm: ##s

Pump Fail Pr Tm: ##s

O.L. Fail Pr Tm: ##s

Reset Tm: 10s Ok ? YN

To return to the System Setup Menu, shown in sec-

tion 4.3, press YES/7 and ENTER. To edit the fields,

press NO/0 and ENTER. See Table 13 for a descrip-

tion of the Alarms Setup variables.

4.3.4 Alternation Setup

From the System Setup Menu, shown in section 4.3,

press ALTERNATION/4 and ENTER to get to the

Alternation Setup screen shown below.

Time Between: # Hr.

Duration: ##s

Ok ? YN

To return to the System Setup Menu, shown in sec-

tion 4.3, press YES/7 and ENTER. To edit the fields,

press NO/0 and ENTER. See Table 14 on next page

for a description of the Alternation Setup variables.

Note: Alternation can also be accomplished manually.

See section 5.10.

Variable Unit Description Default Value Range Field Value

PID-P N/A Proportional value 200 0-999

PID-I N/A Integral value 5 0-999

PID-D N/A Derivative value 2 0-999

Ramp s The amount of time it takes to get a pump up to full speed 100 25-100

Timer immediately after starting a chiller. This variable only

applies to dedicated pump to chiller systems.

Table 12: PID Variables

Variable Unit Description Default Value Range Field Value

Destage % Percentage of max flow at which the lag pump is 45 0-100

Flow destaged

Destage s Proof timer prior to destaging lag pump 30 0-999

Pr Tm

Tm m Time elapsed before a forced destage 0 0-100

Forced

Destg

Table 11: EOC Destage Variables

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 53 54

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