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Sinee EM330D-011-3B, User Manual

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Sinee EM330D-011-3B User Manual Download Page 96

EM330D User Manual   
A Special Purpose Inverter for Hoisting 

                             

96 

 

 
 

9.2.9

 

Inverter Stops Output While Motor Runs 

 

Insufficient DC brake at stop 

 

DC brake torque at stop is too small. Please increase setting value of DC brake 

current at stop (F3-25). 

 

DC braking time  at stop is too short. Please increase setting value of stop DC 

brake  time  (F3-27).  Generally,  please  increase  the  DC  brake  current  at    stop 
first. 
 

9.2.10

 

Output Frequency Does Not Output as per the Setting Frequency 

 

The setting frequency is within the range of skip frequency 
The  function of  skip  frequency is to forbid the inverter to output within the  skip 
frequency range. Please check if the skip frequency of F6-16~F6-21and its range 
are proper. 

 

Setting frequency exceeds the upper limit frequency 

When  the  setting  frequency  exceeds  the  setting  value  of  upper  limit  frequency, 
output  frequency  outputs  as  per  the  upper  limit  frequency.  Reset  the  setting 
frequency to make it within the range of upper limit frequency, or check whether 
F0-16 and F0-17 are proper. 

 

 

Summary of Contents for EM330D-011-3B

Page 1: ...t has been smoothed greatly Optimum current limit Inverter will not trip fault when the load varies frequently Wide voltage input range AVR function ensures that the output can meet torque output requ...

Page 2: ...ming any procedure with this inverter Confirmations upon Delivery Caution 1 Never install an inverter that is damaged or missing components Failure to comply can result in injury Installation Caution...

Page 3: ...erter Otherwise it may result in injury and fire 2 Never perform voltage withstanding test Otherwise semi conductors and other devices can be damaged 3 Connect braking resistor or braking unit accordi...

Page 4: ...may occur 3 Install an emergency switch for a quick brake in case of abnormal conditions An injury may occur Caution 1 Never touch braking resistor It will be very hot and with high voltage when runn...

Page 5: ...nance and inspection must be performed only by authorized professionals Otherwise an electric shock may occur 5 Do not change the wiring and uninstall terminal wiring when power is on Otherwise an ele...

Page 6: ...TION AND SPACE OF INSTALLATION 16 3 WIRING 17 3 1 CONNECTIONS TO PERIPHERALS 17 3 2 WIRING MAIN CIRCUIT TERMINALS 18 3 3 WIRING CONTROL CIRCUIT TERMINALS 25 3 4 WIRING CHECK 29 3 5 STANDARD CONTROL CI...

Page 7: ...RAMETERS 89 8 2 PRECAUTIONS BEFORE AUTOTUNING 89 8 3 AUTOTUNING PROCEDURE 90 9 TROUBLESHOOTINGS 91 9 1 FAULTS 91 9 2 FAULT ANALYSIS 93 10 MAINTENANCE AND INSPECTION 97 10 1 MAINTENANCE AND INSPECTION...

Page 8: ...34 EM330D 018 3 EM330D 018 3B 18 5 41 EM330D 022 3 EM330D 022 3B 22 48 EM330D 030 3 EM330D 030 3B 30 60 EM330D 037 3 EM330D 037 3B 37 75 EM330D 045 3 EM330D 045 3B 45 90 EM330D 055 3 EM330D 055 3B 55...

Page 9: ...Limiting Automatically limit output current avoid frequent overcurrent tripping Do not apply it to construction lift and hoisting function of tower crane DC Brake Brake frequency 0 1 60Hz brake time 0...

Page 10: ...dback when hoist runs downward To make motor brakes quickly within given deceleration time the inverter does not perform overvoltage protection dynamic braking can be started to consume the energy via...

Page 11: ...s setting status After power is on inverter finishes initialization and enters standby status without fault or start up command Meanwhile it does not output Normal running status After receiving activ...

Page 12: ...K2 K1 0 0 0 1 1 0 1 1 Reverse Forward Stop Stop 24V PLC RUN Xi COM F R K1 K2 Run Command K2 K1 0 0 0 1 1 0 1 1 Stop Forward Reverse Stop 0 On 1 Off 0 On 1 Off a 2 wire sequence 0 F0 05 0 b 2 wire sequ...

Page 13: ...utlook if any damages Any screw loosened Check with a screw driver if necessary Contact the distributor or SINEE directly for quality issue Nameplate Model EM330D 4R0 3B Rated Power 4 0kW Input Voltag...

Page 14: ...shown in Figure 2 1 and Table 2 2 The keypad can be installed on the metal panel separately with a hole size of 116 5 0 1 L 71 5 0 1 W mm and applicable panel thickness 1 2 2 0mm 71 74 118 26 34 116...

Page 15: ...X 335 240 550 530 500 245 190 254 10 c EM330D 045 3X EM330D 055 3X 390 300 695 665 635 250 200 259 12 c EM330D 075 3X EM330D 090 3 386 300 753 724 700 287 231 295 13 c EM330D 110 3 416 300 855 825 793...

Page 16: ...iability of inverter operation When inverter is mounted inside a cabinet cooling fan or air conditioner is a must Keep the ambient temperature below 40 C 2 3 3 Precautions Take protective measures dur...

Page 17: ...tween EM330D and its peripherals are shown in Figure 3 1 Mains Circuit Breaker or Leakage Switch Contactor Input AC Reactor Input Noise Filter EM330D 3 phase Induction Motor Braking Resistor Braking R...

Page 18: ...al Block of EM330D 018 075 No Integrated Braking Unit c Main Circuit Terminals of EM330D 018 075 With Integrated Braking Unit R S T POWER U V W MOTOR d Main Circuit Terminals of EM330D 090 or above Fi...

Page 19: ...minals of braking resistor one end connected to and the other to PB Grounding terminals 3 2 3 Standard Wiring of Main Circuit See Figure 3 3 for standard wiring of main circuit With an Integrated Brak...

Page 20: ...etic contactor which is applicable to the power of inverter as shown in Figure 3 4 The inverter can be started and stopped by opening and closing the electromagnetic contactor on input side Inverter m...

Page 21: ...Special Purpose Noise Filter Other Control Devices EM330D Inverter IM EMC Figure 3 5 Correct Noise Filter Installation MCCB Regular Noise Filter Other Control Devices EM330D Inverter IM MCCB Regular...

Page 22: ...r supply Installing a Noise Filter on the Output Side Install a noise filter on the output side of inverter to reduce inductive interference and radio interference Inductive interference Electromagnet...

Page 23: ...Figure 3 9 Countermeasures Against RFI 3 2 6 Main Circuit Cable and Terminal Screw Size Table 3 3 Main Circuit Cable and Terminal Screw Specifications Model No of Inverter Terminals Terminal Screw Ti...

Page 24: ...ced in plastic duct the cable should be uprated by one level 4 The cable should be connected to the applicable cable and wiring terminal 5 The size of grounding cable should be the same as that of pow...

Page 25: ...on interface A A Grounding terminal PE Figure 3 11 EM330D Control Circuit Terminal Block 3 3 2 Function and Wiring of Control Circuit Terminals Table 3 4 Function of Control Circuit Terminals Mode Ter...

Page 26: ...inal Maximum output current 150mA COM Switching value common terminal Switching value input output signal common terminal Communication A RS485 communication terminal RS485 Communications input A RS48...

Page 27: ...C Y1 Y2 24V 24V Relay 3 3V COM EM330D PLC Y1 Y2 24V 24V Relay DC Figure 3 14 Wiring of Multi function Output Terminals If multi function output terminals are used for driving relay or other inductive...

Page 28: ...Figure 3 15 Connect to PC PLC through RS485 RS232 converter A EM330D A PE RS485 RS232 Converter PC PLC 232 Communication Interface Figure 3 15 Wiring of Communication Terminals 3 3 3 Size of Control...

Page 29: ...2 from the other cables Use shielded twisted pair cables for control circuit to prevent malfunctions The wiring distance should be in a maximum of 50m Please insulate the shield with tape to prevent t...

Page 30: ...ctor Grounding EB EC Relay Output EA 2 Multi function Outputs COM Y2 Y1 0 2 10V 0 4 20mA PB External Braking Unit MCCB MC R S T 3 phase Mains RUN F R D1 D2 D3 FRS RST Analog Input 0 4 20mA External Br...

Page 31: ...Select the row of monitor parameter in operation RES ESC Reset Escape Reset previous status Escape from editing the present parameter JOG Button for Multi functional programming For programmable JOG o...

Page 32: ...unction Setting 1 Display edit save reset and lock the parameters 2 Reset default of the parameters 3 Select relevant parameter when the inverter is running Function Parameter Copy 1 Upload parameter...

Page 33: ...the power immediately if any emergency and check as per the instruction in Chapter 9 After inverter maintained or motor changed please reset the parameters as defaults and then conduct following opera...

Page 34: ...g devices check if the inverter is in normal operation and if mechanical brake is enabled 4 Observe response of output frequency through the speed signals given by the control handle 5 When runing dow...

Page 35: ...rake detection The inverter possesses Brake detection function Brake detection shall be conducted periodically by turning off the input terminals 10V and VF on the control panel when the tower crane i...

Page 36: ...of parameter Column 4 the parameter unit Column 5 the parameter default For instance X represents that the parameter default varies with the power ratings of inverter The defaults of some parameters v...

Page 37: ...Xi NC stop F R NO reverse 3 RUN NO run Xi NC stop F R Forward Reverse 1 F0 06 Regular Speed Setting Mode 0 Primary numeric frequency 1 VP 2 VS 3 IS 4 10 Not used 0 F0 07 Primary Numeric Frequency Sett...

Page 38: ...d 0 00 600 00 S 0 00 F0 26 Primary Speed Setting Mode 0 Regular speed setting mode 1 Special speed setting mode 2 Not used 0 F0 27 Menu Mode Options 0 Basic menu mode 1 Advanced menu mode 1 F0 28 Defa...

Page 39: ...0 247 0 Broadcasting address 1 F1 17 Communication Bit Rate 0 4800 1 9600 2 19200 3 38400 bps 1 F1 18 Communication Parity Mode 0 No parity 1 8 1 1 Even parity 1 8 1 1 2 Odd parity 1 8 1 1 0 F1 19 Mas...

Page 40: ...g 0 F2 12 Multi function Output Terminal Y1 See Table 6 2 Functions of Numeric Multi function Output Terminals 9 F2 13 Multi function Output Terminal Y2 1 F2 14 Relay Output Terminal R1 24 F2 15 Not U...

Page 41: ...ing 11 Forward Jog FJOG 36 Not Used 12 Reverse Jog RJOG 37 PID Positive Negative Input Switching 13 Terminal UP 38 43 Not Used 14 Terminal DOWN 44 Preset Current Limiting Terminal 1 15 UP DOWN Clearin...

Page 42: ...12 16 Not Used Table 6 3 F2 16 F2 20 Analog Outputs Full Scales No Signal Full Scale 100 0 No Signal Full Scale 100 0 6 Output Current Inverter Rated Current 13 Not used 7 Output Voltage Inverter Rat...

Page 43: ...Start 0 00 30 00 S 0 00 F3 24 DC Brake Start Frequency at Stop 0 10 60 00 Hz 2 00 F3 25 DC Brake Propotion at Stop 0 00 30 00 30 01 150 00 100 00 F3 26 DC Brake Waiting Time 0 00 30 00 S 0 00 F3 27 D...

Page 44: ...4 28 Application Macros Options 0 General Purpose Inverter 6 Crane hoisting application macros 7 Crane slewing application macros 8 Crane trolleying application macros 9 Construction lift application...

Page 45: ...er 0 0 3000 0 kW C0 22 C0 25 Not Used C0 26 Input Terminal Status X7 X6 X5 X4 X3 X2 X1 0 0 0 0 0 0 0 C0 27 Output Terminal Status R1 Y2 Y1 0 0 0 0 0 0 0 C0 28 VS Input Monitor 0 10000 C0 29 IS Input M...

Page 46: ...tage stall CL Overcurrent stall 0 E0 07 Working Time at Fault HOUR 0 E0 08 The 1st Most Recent Fault Fault trips 0 E0 09 Output Frequency at Fault XX XX XX X Hz 0 00 E0 10 Output Current at Fault XXX...

Page 47: ...at Fault 0 Normal UL Overvoltage stall CL Overcurrent stall 0 E0 31 Working Time at Fault HOUR 0 Section 2 Advanced Parameters 6 2 8 Group F9 Speed Setting Selection Parameters No Function Range Unit...

Page 48: ...ning Down for disengaging the external brake 0 00 20 00 Hz 3 00 Fb 02 Delay time before the external brake is disengaged 0 0 10 0 S 0 3 Fb 03 Delay time after the external brake is disengaged at runni...

Page 49: ...at power on 1 Run at start up 1 FC 04 Fan Delay Time 0 00 600 00 S 30 00 FC 05 Not Used FC 06 Resume previous working status at power on 0 Not Resume 1 Resume 0 FC 07 Current Stall Control 0 Disabled...

Page 50: ...ce Not Used Thousands place Overvoltage stall protection mode 0 Disabled 1 Not Used 2 Not Used 0010 FC 20 FC 23 Not Used FC 24 Fault Retry Control Ones place Fault retry times 0 Fault retry prohibited...

Page 51: ...100 00 16 00 Fd 09 Fd 19 Not Used Fd 20 CPUB Software Version X XX X XX X Fd 21 Inverter Rated Power 0 40 480 00 kW XXXX X Fd 22 Inverter Rated Voltage 60 660 V XXX X Fd 23 Inverter Rated Current 0 1...

Page 52: ...0 IS is on at high level input 1 IS is on at low level input Hundreds place Input terminal VF 0 VF is on at high level input 1 VF is on at low level input Thousands place Input terminal IF 0 IF is on...

Page 53: ...ironment failure 0 X FE 21 SlU and SOFT Faults Display 0 SlU Stable undervoltage fault 1 SOFT Soft start fault 0 X FE 22 SCI SPIFaults Display 0 SCI comminucation fault 1 SPI comminucation fault 2 Not...

Page 54: ...rake detection input 26 F2 12 Multi function Input Terminal Y1 Inverter fault output 9 F2 13 Multi function Input Terminal Y2 External brake detection output remind 27 F2 14 Relay Output Terminal R1 E...

Page 55: ...ic signal input VS Numeric signal input 0101 FE 05 Analog Terminal Input Logic VF is on at high level VS is on at low level 0001 FE 17 X1 Off Delay 0 2S FE 18 X2 Off Delay 0 2S Remarks 1 Defaults of F...

Page 56: ...led 0010 FC 28 Disabled Trips 1 Disable input phase loss trip 01000000 Fd 01 Voltage 1 4 00 Fd 02 Voltage 2 8 00 Fd 03 Voltage 3 14 00 Fd 04 Voltage 4 20 00 Fd 08 Frequency 4 20 00 Remarks 1 Defaults...

Page 57: ...cros for Trolleying of Tower Crane as shown in the table above 2 Users can define the range of those parameters based on real needs if the defaults may not meet the application needs 6 3 4 Application...

Page 58: ...the external brake is engaged at running down 0 3S Fb 11 Frequency Running Down for engaging the external brake 2 50 Hz Fb 27 Brake Disengage Conditions Enabled when frequency and current reached sim...

Page 59: ...is Hz or rpm which indicates that the present control object is the motor speed its value is the present setting objective value of speed When objective value is reverse input then symbol shall be dis...

Page 60: ...ommunication interface Terminal control modes can be classified as 2 wire sequence and 3 wire sequence 2 wire sequence F0 05 0 Start stop of inverter is under control of ON OFF of terminal RUN and for...

Page 61: ...05 0 or 1 even if terminal RUN is ON inverter can be stopped by pressing STOP RESET stop command of external terminal or monocycle time of PLC is up Meanwhile inverter re enters running status only w...

Page 62: ...nning direction based on the setting of F0 08 and the status of terminal F R If F0 08 1 and terminal F R is on then inverter runs forward 2 Switch any two of output cables U V and W of inverter to mak...

Page 63: ...e default the rated power of inverter should decrese 5 as each increment of 1 kHz carrier frequency Correlation between motor rated power and carrier frequency is suggested as following Motor Rated Po...

Page 64: ...d search start will not apply to hoisting devices No Function Range Unit Default Type F0 20 Stop Mode Options 0 Ramp to stop 1 Coast to Stop 0 Stop Mode Setting Ramp to Stop F0 20 0 Motor is ramp to s...

Page 65: ...se 0 F0 24 F R Control Mode 0 Reverse permitted 1 Reverse prohibited 0 F0 25 F R Deadband 0 00 600 00 S 0 00 F0 08 Motor running direction F0 08 0 is forward When F0 24 0 reverse permitted the running...

Page 66: ...ould meet the needs of most of applications F0 27 1 Keypad displays 16 group parameters of F0 FE No Function Range Unit Default Type F0 28 Default Control 0 Disabled 1 Defaults reset 0 F0 29 Parameter...

Page 67: ...ted Frequency 20 00 600 00 Hz XXXX F1 05 Motor Rated Speed 1 30000 rpm XXXX F1 06 Motor Wiring Mode 0 Y 1 X F1 07 Motor Rated Power Factor 0 50 0 99 X F1 14 Motor Efficiency 30 0 99 00 XXX Remarks Whe...

Page 68: ...ill be set automatically When slip compensation is active autotune motor parameter first so that the motor will obtain the optimum operation status It is only in keypad start stop control mode and key...

Page 69: ...3 Preset Speed Terminal 1 Xi 4 Preset Speed Terminal 2 Xi 5 Preset Speed Terminal 3 Xi 6 Preset Speed Terminal 4 In preset speed control mode define 4 function input terminals as the preset speed ter...

Page 70: ...ls 9 F2 13 Multi function Output Terminal Y2 1 F2 14 Relay Output Terminal R1 24 EM330D provides 3 programmable output terminals including 2 multi function output terminals and 1 relay output terminal...

Page 71: ...of F9 15 FDT2 Decreasing Threshold the output terminal is off 4 Output Frequency Detection Range FDT1 Disabled at JOG When inverter is running Except in JOG running mode if the output frequency increa...

Page 72: ...When inverter is power on normally and no fault occurs the output terminal is on 27 Brake detection remind output 1 When connecting to the buzzer and when the setting Brake detection timelag is up th...

Page 73: ...01 Preset Speed 2 0 00 Fmax Hz 5 00 F3 02 Preset Speed 3 0 00 Fmax Hz 10 00 F3 03 Preset Speed 4 0 00 Fmax Hz 15 00 F3 04 Preset Speed 5 0 00 Fmax Hz 20 00 F3 05 Preset Speed 6 0 00 Fmax Hz 25 00 F3...

Page 74: ...s start stop of inverter in preset speed operation mode External terminals set the acceleration deceleration time in preset speed operation mode Terminals F R and RUN determines the running direction...

Page 75: ...ration time is minute The acceleration deceleration time is can be set continuously in the range of 0 00 600 00 minutes No Function Range Unit Default Type F3 22 DC Brake Propotion at Start 0 00 30 00...

Page 76: ...When the parameter 30 01 the percentage base is the rated output current of inverter While the DC brake controls the DC current generated by motor windings F3 26 When DC brake command at stop given b...

Page 77: ...Lower Limit Frequency Running Time 0 00 600 00 S 60 00 F3 28 0 When the output frequency is lower than the lower limit frequency the inverter will always run as per lower limit frequency The lower lim...

Page 78: ...1 0 set automatically The function may be applied to the setting parameter copy between different inverters and to save the initial parameters defined by user When the parameters are edited by mistake...

Page 79: ...rter does not run in parameter setting status For example when inverter stops the parameter displayed on keypad The setting value is corresponding to the value in C0 Group No Function Range Unit Defau...

Page 80: ...the output voltage and output current Hz C0 09 C0 10 Estimated Slip Frequency Inverter calculates present slip frequency based on the output voltage and output current Hz C0 11 C0 12 Output Current Pe...

Page 81: ...ff until the output frequency drops to the value of F9 13 FDT1 Decreasing Threshold See Figure 7 11 The function of FTD2 is the same as that of FDT1 No Function Range Unit Default Type F9 24 Start up...

Page 82: ...external brake t1 Fb 02 Delay time before the external brake is disengaged t2 Fb 03 Delay time after the external brake is disengaged at running up t3 Fb 05 Delay time before the external brake is eng...

Page 83: ...amic brake braking unit works in PWM mode FC 16 is for setting the duty ratio of braking unit If the bigger value of FC 16 is the stronger brake capacity would be This function is only applied to inte...

Page 84: ...e Overvoltage stall protection mode 0 Disabled 1 Not used 2 Not used 0010 Generally DC bus overvoltage is caused by deceleration Due to energy feedback DC bus voltage will rise at deceleration When DC...

Page 85: ...rge starts When DC bus voltage drops and DC bus voltage overvoltage threshold braking unit shall be turned off FC 19 thousands place 0 Overvoltage stall protection disabled Set FC 19 thousands place 0...

Page 86: ...29 01000010 1 Unless required please do not disable any trip in case any damage occurred when inverter would not trip at faults 2 Ol1 is motor overload but displayed as Ol Generally motor overload is...

Page 87: ...VS input signal options 0 Analog signal input 1 Numeric signal input Tens place IS input signal options 0 Analog signal input 1 Numeric signal input Hundreds place VF input signal options 0 Analog sig...

Page 88: ...ow level input Thousands place Input terminal IF 0 IF is on at high level input 1 IF is on at low level input 0000 When FE 04 selects numeric input mode FE 05 sets the effective logic of input signal...

Page 89: ...del of 3 phase AC Induction Motor R1 L1 R2 L2 Lm and I0 in Figure 8 1 refers to stator resistance stator inductance rotor resistance rotor inductance stator and rotor mutual inductance and idling exci...

Page 90: ...nd autosaved When F0 28 1 reset the default the parameters of F1 00 F1 13 remains unchanged 8 3 Autotuning Procedure In parameter setting status set F0 04 0 and make motor offload Set all motor parame...

Page 91: ...too big 4 The motor is rotating when inverter starts 5 The capacity of motor exceeds that of inverter 1 Check take corrective actions and then reset 2 Prolong acceleration deceleration time 3 Reduce s...

Page 92: ...EED Inverter EEPROM Failure 1 Interference makes EEPROM read write mistakes 1 EEPROM is damaged 1 Press STOP RESET button to reset and then retry 2 Technical support required EEU Keypad EEPROM Failur...

Page 93: ...incorrect wiring between inverter and external control terminals motor cannot meet the expected working standard Fault analysis as described in this chapter can be taken as the reference to take as t...

Page 94: ...continuously only until output current is lower than the setting current limit Therefore the acceleration time of motor is longer than the setting time Check if the setting current limit of inverter i...

Page 95: ...r Leakage Protection When inverter runs the leakage current circuit breaker is triggered for leakage protection Since inverter outputs high frequency PWM signal it will generate high frequency leakage...

Page 96: ...put Frequency Does Not Output as per the Setting Frequency The setting frequency is within the range of skip frequency The function of skip frequency is to forbid the inverter to output within the ski...

Page 97: ...tor should not be vibrating or making unusual sound Inverter and motor should not be overheating The ambient temperature should not be too high The output current value shown on the monitor displays s...

Page 98: ...lacement period is based on the following application conditions Ambient temperature Yearly average of 30 Load factor 80 maximum Operation rate 12 hours maximum per day 10 5 Outline of Warranty SINEE...

Page 99: ...075 3X 10 36 16 Remarks 1 X in the above table refers to B and C 2 Cable connected to resistor should withstand voltage AC450V with a temperature resistance of 105 11 2 Braking Unit Separate BR100 bra...

Page 100: ...ing Resistor Model No Average Brake Current Iav A Peak Brake Current Imax A Cross section of Copper Cable mm2 BR100 045 45 75 6 BR100 160 75 150 10 BR100 315 120 300 16 Soft cable possesses a better f...

Page 101: ...ult Reset U V W M1 M2 M3 Fault Output Relay 24V PLC Y1 COM Brake Control EB EA EC EM330D External Braking Unit Braking Resistor PB Figure 12 1 Wiring of Construction Lift Remarks 1 Operation logic con...

Page 102: ...B L1 L2 L3 X5 M1 24V PLC Relay Fault Output Y1 COM X6 Preset Speed 5 Fault Reset X7 GPS Module 10V VS GND 10V VF Y2 Preset Speed 3 Preset Speed 4 Preset Speed 2 Figure 12 2 Wiring of Tower Crane Hoist...

Page 103: ...Resistor PB L1 L2 L3 X5 M1 24V PLC Relay Fault Output Y1 COM X6 Acceleration Deceleration 2 Fault Reset X7 Left Slew Preset Speed 3 Preset Speed 4 Figure 12 3 Wiring of Tower Crane Slewing Remarks 1...

Page 104: ...ontrol EB EA EC EM330D PB L1 L2 L3 M1 24V PLC Relay Fault Output Y1 COM Fault Reset X7 Backward Trolleying Preset Speed 3 Figure 12 4 Wiring of Tower Crane Trolleying Remarks 1 Operation logic control...

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