Emotron FDU 2.0 Variable Speed Drive

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7.6.2 Fixed MASTER This is the default setting of the Pump Control. The FDU controls the Master pump which is always running. The relay outputs start and stop the other pumps P1 to P6, depending on flow/pressure. In this configuration a maximum of 7 pumps can be controlled, see Fig. 48. To equalize the lifetime of the additional pumps it is possible to select the pumps depending on the run time history of each pump. R: SlavePump6 R: SlavePump5 FDU R: SlavePump4 R: SlavePump3 MASTER R: SlavePump2 R: SlavePump1 R: MasterPump6 R: MasterPump5 R: MasterPump4 R: MasterPump3 R: MasterPump2 R: MasterPump1 (NG_50-PC-5_1) P1 P2 P3 P4 P5 P6 R:SlavePump6 R:SlavePump5 FDU R:SlavePump4 MASTER R:SlavePump3 R:SlavePump2 R:SlavePump1 See menu: [393] to [396] [553] to [55C] (NG_50-PC-4_1) PM See menu: [393] Select Drive [39H] to [39N] Run Time 1 - 6, Pump [554] to [55C] Relays Fig. 48 Fixed MASTER control P1 P2 P3 P4 P5 P6 NOTE: The pumps MAY have different powers, however the MASTER pump MUST always be the largest. 7.6.3 Alternating MASTER With this function the Master pump is not fixed to the FDU all the time. After the VSD is powered up or started again after a stop or sleep mode the Master pump is selected via the relay set to function Master Pump. section 7.6.7 on page 44 shows a detailed wiring diagram with 3 pumps. The purpose of this function is that all pumps are used equally, so the lifetime of all pumps, including the Master pump, will be equalized. Maximum 6 pumps can be controlled with this function. Fig. 49 Alternating MASTER Control NOTE: The pumps MUST have all the same power. 7.6.4 Feedback 'Status' input In this example the additional pumps are controlled by an other kind of drive (e.g. soft starter, frequency inverter, etc.). The digital inputs on the I/O Board can be programmed as a "Error" input for each pump. If a drive fails the digital input will monitor this and the PUMP CONTROL will not use that particular drive anymore and automatically switch to another drive. This means that the control continues without using this (faulty) drive. This function can also be used to manually stop a particular pump for maintenance purposes, without shutting down the whole pump system. Of course the maximum flow/pressure is then limited to the maximum pump power of the remaining pumps. Emotron AB 01-4428-01r2 Main Features 41
See menu: [529] to [52H] Digital Input [554] to [55C] Relay FDU MASTER R:SlavePump3 R:SlavePump2 R:SlavePump1 feedback inputs DI:Pump1Feedb DI:Pump2Feedb DI:Pump3Feedb other drive other drive other drive (NG_50-PC-6_1) Fig. 50 Feedback "Status" input PM P1 P2 P3 7.6.5 Fail safe operation Some pump systems must always have a minimum flow or pressure level, even if the frequency inverter is tripped or damaged. So at least 1 or 2 (or maybe all) additional pumps must keep running after the inverter is powered down or tripped. This kind of "safe" pump operation can be obtained by using the NC contacts of the pump control relays. These can be programmed for each individual additional pump. In this example pumps P5 and P6 will run at maximum power if the inverter fails or is powered down. See menu: [554] to [55C] Relays [55D4] to [55DC] Mode FDU MASTER R:SlavePump6 R:SlavePump5 R:SlavePump4 R:SlavePump3 R:SlavePump2 R:SlavePump1 (50-PC-7_1) PM P1 P2 P3 P4 P5 P6 Fig. 51 Example of "Fail safe" operation 42 Main Features Emotron AB 01-4428-01r2
Page 1 and 2: Emotron FDU 2.0 Variable Speed Driv
Page 3 and 4: Addendum 11.3.4. Mechanical brake c
Page 5 and 6: Addendum 2. Other changes In follow
Page 7 and 8: Addendum 14. Technical Data 14.1 El
Page 10 and 11: Safety Instructions Instruction man
Page 12 and 13: Contents Safety Instructions ......
Page 14 and 15: 1. Introduction FDU is used most co
Page 16 and 17: Table 1 Standards European All USA
Page 18 and 19: 2. Mounting This chapter describes
Page 20 and 21: 2.2.2 Mounting schemes 128,5 24,8 1
Page 22 and 23: Table 5 Flow rates cooling fans Cab
Page 24 and 25: 3. Installation The description of
Page 26 and 27: VSD built into cabinet Litz RFI-Fil
Page 28 and 29: 3.4 Cable specifications Table 7 Ca
Page 30 and 31: 4. Control Connections 4.1 Control
Page 32 and 33: 4.4 Connection example Fig. 29 give
Page 34 and 35: 4.5.2 Types of control signals Alwa
Page 36 and 37: 5. Getting Started This chapter is
Page 38 and 39: 5.4 Local control Manual control vi
Page 40 and 41: 6. Applications This chapter contai
Page 42 and 43: 7. Main Features This chapter conta
Page 44 and 45: 7.1.6 Preset references The VSD is
Page 46 and 47: See Fig. 40. The Enable and Stop in
Page 48 and 49: . Torque [%] [4161] MaxAlarmMar (15
Page 52 and 53: 7.6.6 PID control When using the Pu
Page 54 and 55: 7.6.8 Checklist And Tips 1. Main Fu
Page 56 and 57: Stopping an additional pump This fi
Page 58 and 59: 8. EMC and Machine Directive 8.1 EM
Page 60 and 61: 9. Operation via the Control Panel
Page 62 and 63: Default toggle loop Fig. 64 shows t
Page 64 and 65: 500 Inputs/Outputs and Virtual Conn
Page 66 and 67: 10. Serial communication The VSD pr
Page 68 and 69: Example of Emotron floating point f
Page 70 and 71: Example Emotron 15-bit fixed point
Page 72 and 73: 11. Functional Description This cha
Page 74 and 75: Reference control [214] To control
Page 76 and 77: Communication information Modbus In
Page 78 and 79: Motor Speed [225] Set the nominal a
Page 82 and 83: Fig. 72 shows how the function inte
Page 84 and 85: The active set can be viewed with f
Page 86 and 87: Example: • Autoreset = 5 • With
Page 88 and 89: Motor I 2 t [25A] Delay time starts
Page 92 and 93: Comm Type [261] Select RS232/485 [2
Page 94 and 95: DHCP [2655] Default: Selection: Off
Page 96 and 97: Process Unit [322] Default: rpm Off
Page 98 and 99: Process unit Process Max [325] F(Va
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Acceleration Time Motor Potentiomet
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Start Mode [339] Sets the way of st
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Release Speed [33D] The release spe
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n Skip Speed 2 High [347] The same
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Communication information Modbus In
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+ Process PID Control [381] This fu
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PID Steady state test delay. NOTE:
Page 114 and 115:
Change Condition [394] This paramet
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Stop Delay [39A] This delay time mu
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Transition Speed Stop [39G] The tra
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can be set to basic. This type uses
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Min Alarm Response delay [4192] Set
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Default: Off Off 0 No detection On
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Default: Dependent on 4-20mA 0 0-20
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AnIn1 Function Min [5134] With AnIn
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AnIn2 Setup [515] Parameter for set
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Pump1 Feedb Pump2 Feedb Pump3 Feedb
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AnOut1 Advanced [533] With the func
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AnOut2 Setup [535] Preset scaling a
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Digital Out 2 [542] Relay 2 [552] N
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Virtual Connection 1 Source [562] W
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No. Description Communication infor
Page 144 and 145:
Page 146 and 147:
Y Operator 2 [624] Selects the seco
Page 148 and 149:
Page 150 and 151:
Timer 2 Value [659] Timer 2 Value s
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PT100_1_2_3 Temp [71B] Displays the
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The example in Fig. 115 indicates t
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Energy [733] Displays the total ene
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11.8.3 Reset Trip Log [8A0] Resets
Page 160 and 161:
12. Troubleshooting, Diagnoses and
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Table 31 Trip condition, their poss
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Table 31 Trip condition, their poss
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13. Options The standard options av
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13.4 I/O Board Order number Descrip
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Safe Stop +5V Power board = X1 1 2
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14. Technical Data 14.1 Electrical
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Table 40 Typical motor power at mai
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14.2 General electrical specificati
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14.5 Dimensions and Weights The tab
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14.7 Fuses, cable crosssections and
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14.7.2 Fuses and cable dimensions a
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14.8 Control signals Table 53 Termi
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15. Menu List DEFAULT 100 Preferred
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DEFAULT CUSTOM DEFAULT CUSTOM 4161
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DEFAULT CUSTOM DEFAULT CUSTOM 720 S
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DEFAULT CUSTOM 896 Current 897 Outp
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Index Symbols +10VDC Supply voltage
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(39F) .............................
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Emotron AB, Mörsaregatan 12, SE-25
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Emotron FDU 2.0 Variable Speed Drive

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