Danfoss vlt aqua, Instruction

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6.4.20 25-** Cascade Controller
Par.
No. #
Parameter description Default value
(SR = Size related)
4 set-up Change during
operation
Conver-
sion index
Type
25-0* System Settings
25-00 Cascade Controller [0] Disabled 2 set-ups FALSE - Uint8
25-02 Motor Start [0] Direct on Line 2 set-ups FALSE - Uint8
25-04 Pump Cycling [0] Disabled All set-ups TRUE - Uint8
25-05 Fixed Lead Pump [1] Yes 2 set-ups FALSE - Uint8
25-06 Number Of Pumps 2 N/A 2 set-ups FALSE 0 Uint8
25-2* Bandwidth Settings
25-20 Staging Bandwidth 10 % All set-ups TRUE 0 Uint8
25-21 Override Bandwidth 100 % All set-ups TRUE 0 Uint8
25-22 Fixed Speed Bandwidth
casco_staging_bandwidth
(P2520) All set-ups TRUE 0 Uint8
25-23 SBW Staging Delay 15 s All set-ups TRUE 0 Uint16
25-24 SBW De-staging Delay 15 s All set-ups TRUE 0 Uint16
25-25 OBW Time 10 s All set-ups TRUE 0 Uint16
25-26 Destage At No-Flow [0] Disabled All set-ups TRUE - Uint8
25-27 Stage Function [1] Enabled All set-ups TRUE - Uint8
25-28 Stage Function Time 15 s All set-ups TRUE 0 Uint16
25-29 Destage Function [1] Enabled All set-ups TRUE - Uint8
25-30 Destage Function Time 15 s All set-ups TRUE 0 Uint16
25-4* Staging Settings
25-40 Ramp-down Delay 10.0 s All set-ups TRUE -1 Uint16
25-41 Ramp-up Delay 2.0 s All set-ups TRUE -1 Uint16
25-42 Staging Threshold ExpressionLimit All set-ups TRUE 0 Uint8
25-43 De-staging Threshold ExpressionLimit All set-ups TRUE 0 Uint8
25-44 Staging Speed [RPM] 0 RPM All set-ups TRUE 67 Uint16
25-45 Staging Speed [Hz] 0.0 Hz All set-ups TRUE -1 Uint16
25-46 De-staging Speed [RPM] 0 RPM All set-ups TRUE 67 Uint16
25-47 De-staging Speed [Hz] 0.0 Hz All set-ups TRUE -1 Uint16
25-5* Alternation Settings
25-50 Lead Pump Alternation [0] OFF All set-ups TRUE - Uint8
25-51 Alternation Event [0] External All set-ups TRUE - Uint8
25-52 Alternation Time Interval 24 h All set-ups TRUE 74 Uint16
25-53 Alternation Timer Value 0 N/A All set-ups TRUE 0 VisStr[7]
25-54 Alternation Predefined Time ExpressionLimit All set-ups TRUE 0
TimeOf-
DayWoDate
25-55 Alternate if Load < 50% [1] Enabled All set-ups TRUE - Uint8
25-56 Staging Mode at Alternation [0] Slow All set-ups TRUE - Uint8
25-58 Run Next Pump Delay 0.1 s All set-ups TRUE -1 Uint16
25-59 Run-on Line Delay 0.5 s All set-ups TRUE -1 Uint16
25-8* Status
25-80 Cascade Status 0 N/A All set-ups TRUE 0 VisStr[25]
25-81 Pump Status 0 N/A All set-ups TRUE 0 VisStr[25]
25-82 Lead Pump 0 N/A All set-ups TRUE 0 Uint8
25-83 Relay Status 0 N/A All set-ups TRUE 0 VisStr[4]
25-84 Pump ON Time 0 h All set-ups TRUE 74 Uint32
25-85 Relay ON Time 0 h All set-ups TRUE 74 Uint32
25-86 Reset Relay Counters [0] Do not reset All set-ups TRUE - Uint8
25-9* Service
25-90 Pump Interlock [0] Off All set-ups TRUE - Uint8
25-91 Manual Alternation 0 N/A All set-ups TRUE 0 Uint8
6 How to Program the Low Harmonic Drive
VLT AQUA Low Harmonic Drive Instruction
Manual
6-64
MG.20.T1.22 - VLT
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