Carrier 39S handleiding

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Carrier

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Handleiding

Table 7 — VFD Parameters — Control Option D (Constant cfm Control)

NOTE(S):

a. Control Option “D” indicates factory settings for VFD with constant cfm (airflow) control. VFD speed is controlled using the differential pressure output from the differential

pressure transducer. The VFD changes RPM to keep the DP setpoint constant, which results in constant airflow.

PARAMETER INDEX PARAMETER FUNCTION SETTING

1611 Parameter View 3 (Long View)

9902 Application Macro 1 (HVAC Default)

9905 Motor Nom Voltage 230 or 460 (see Nameplate)

9906 Motor Nominal Current See Table 8

9908 Motor Nominal Speed 3500

1001 Start/Stop Command 1 (DI1)

1002 EXT 2 Commands 1 (DI1)

1003 Motor Direction 1 (Forward)

1102 EXT 1 - EXT 2 SEL EXT 2

1104 Min Frequency 10 Hz

1105 Max Ref Frequency See Table 8

1103 REF1 Select 2(AI2)

1106 REF2 Select 19(PID1Out)

1201 Constant Speed Selection 0 (No Constant Speed)

1301 AI-1 Minimum 0.2

1302 AI-1 Maximum 1

1601 Run Enable 1 (DI1)

1608 Start Enable 1 (DI1)

1609 Start Enable 2 1 (DI1)

1610 Display Alarms 1 (Yes)

2003 Max Motor Current See Table 8

2008 Maximum Output drive frequency See Table 8

2202 Acceleration Time 5s

2203 Decel Time 5s

2606 Switching Frequency 16 kHz

3404 Output 1 Display Form 9 (Direct)

3408 Signal 2 Param 130 (PID 1 FBK)

3411 Output 2 DSP Form 6 (2 DEC)

3412 Output 2 DSP Unit 58 (in H20)

3415 Output 3 Parameter 0128 (PID SETPOINT)

3418 Output 3 Display Form 6 (2 DEC)

3419 Output 3 Units 58 (in H20)

4001 PID Gain 0.7

4002 PID Integrate 5 s

4005 Error Value Inverted 0 (No)

4006 Units 58 (in H20)

4007 Unit Scale 2 (2 DEC)

4008 0% Value 0.0 (in H20)

4009 100% Value 25.0 (in H20)

4010 Set Point Select 19 (INTERNAL)

4011 Set Point See Table 9

4014 Feedback Select 1 (ACT1)

4016 ACT-1 Input 2(AI2)

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