background image

Page 6

2.2.b Potentiometer

The Potentiometer should be wired in the 3 - Wire Configuration.

CPOT  (B1) signal ranges from  0 to 10V.

Minimum Potentiometer Resistance :

500

Maximum Potentiometer Resistance :

10k

Faults can occur if the potentiometer is out of this range.

The Procedure for automatic potentiometer signal aquisition is carried out using the

Console.  This enables adjustment of the minimum and maximum useful signal level

(PROGRAM VACC function), in either direction.  This function is unique when it is nec-

essary to compensate for asymmetry with the machanical elements associated with the

potentiometer,  especially relating to the minimum level.

The two graphs show the output voltage from a non-calibrated potentiometer with

respect to the mechanical “zero” of the control lever.  MI and MA indicate the point

where the direction switches close. 0 represents the mechanical zero of the rotation.

The Left Hand graph shows the relationship of the motor voltage without signal

aquisition being made.  The Right Hand Graph shows the same relationship after signal

aquisition of the potentiometer.

MENU

Содержание SEM-1C

Страница 1: ...l Console 15 4 1 Adjustments via Console 15 4 2 Description of Console Connection 15 4 3 Description of Standard Console Menu 16 5 SEM 1C cabling and configuration 17 5 1 Power diagram 17 5 2 Connecti...

Страница 2: ...Page 2 SIGNED IN APPROVAL COMPANY DEPT SERVICES MANAGEMENT EXECUTIVE ENGINEERING SECTION EXECUTIVE EXPORT MANAGER Pubblication n AD0ZP0CA Edition February 2000 MENU...

Страница 3: ...tor NPC Negative Pump Contactor NPOT Negative Potentiometer PC Pump Contactor PEMB Positive Electromechanical Brake PEV Positive Lowering Valve PHORN Positive Horn PMC Positive Main Contactor PPC Posi...

Страница 4: ...us chopper configurations can be selected by the user without the need for hardware modifications Future technological updates are made easy for the user The communication protocol will continue to ev...

Страница 5: ...T BOOSTER CURRENT VOLTAGE DROP IN FULL CONDUCTION 24V 36V 200A 3 220A 10 0 23V a 100A 25 C 24V 36V 300A 2 330A 10 0 23V a 100A 25 C 48V 180A 3 200A 10 0 18V a 50A 25 C 2 2 CONTROL UNITS 2 2 a Microswi...

Страница 6: ...in either direction This function is unique when it is nec essary to compensate for asymmetry with the machanical elements associated with the potentiometer especially relating to the minimum level T...

Страница 7: ...nce if these operations are not carried out correctly Requests for drive must be made after closing the key Switch Protection against uncontrolled movements The Line Contactor will not close if The Po...

Страница 8: ...witch is closed if the motor is rotat ing the chopper controls the speed and automatically brakes and keeps the motor at a very low speed during descent on a gradient This is a very useful safety feat...

Страница 9: ...Led connected to Connector A will flash a certain number of times for a given Alarm See Listings or the Digital Console may be used A permanent Alarm will be displayed on the Console immediately and t...

Страница 10: ...a traction battery Do not use the outputs of converters or power supplies For special applications please contact the nearest Zapi service centre Start the machine the first time with the drive wheel...

Страница 11: ...nnections to the motor armature and battery use cable of 16mm section For the Field connections use cable of 4mm section For the optimum chopper performance the cables to the battery should be run sid...

Страница 12: ...HORN LIFT LOW microswitches A8 H S Hard Soft function input It should be connected to A7 through the H S switch Active high VB B1 CPOT Accelerator s potentiometer wiper or output of inductive device...

Страница 13: ...C Positive pump contactor it should be connected to A7 by lifting micro switch LIFT which provides the positive supply to the pump contactor s coil D5 NPC NEV Negative supply for pump contactor D6 PEV...

Страница 14: ...Page 14 3 6 MECHANICAL DRAWING DIMENSIONS MENU...

Страница 15: ...using the Digital Console The Console is connected to the E connector of the SEM 1C Chopper Pay attention to the polarity of the Console Connector when connecting to the chopper The bevel on the conne...

Страница 16: ...Page 16 4 3 DESCRIPTION OF STANDARD CONSOLE MENU MENU...

Страница 17: ...Page 17 5 SEM 1C CABLING AND CONFIGURATION 5 1 POWER DIAGRAM MENU...

Страница 18: ...Page 18 5 2 CONNECTIONS MENU...

Страница 19: ...y Button is pressed TIMED Quick inversion is activated while the Belly Button is pressed maximum for 2 second 3 AUX OUTPUT 1 FREE A4 output is not used the controller carry out monitor function as des...

Страница 20: ...the menu appears on the Display 8 Press either ROLL UP or ROLL DOWN to bring up the next the Option 9 A new Option appears on the Display 10 When the desired Option is displayed press PARAM Top Right...

Страница 21: ...6 SOFT ACCEL Determines how much the acceleration ramps are reduced when the H S function is active 7 CUTBACK SPEED 1 First speed reduction 8 CUTBACK SPEED 2 Second speed reduction 9 H S CUTBACK Spee...

Страница 22: ...xes the minimum Field Current when the potentiometer is between 0 and 60 without total conduc tion of the Armature Adjustment should be made with reference to the Data on the Motor Label The indicatio...

Страница 23: ...8 M AXIM UM CURRENT IMax 82 84 86 88 90 92 94 96 98 100 ARMA CUR NO M ACN IMax 45 47 50 52 54 56 58 61 63 65 W EAK DROP OUT ACN 40 44 48 52 57 62 66 70 75 80 FIELD CURR NOM FCN A 7 5 8 1 8 7 9 3 10 10...

Страница 24: ...e names of the Parameters appear on the Display 8 When the desired Parameter appears the Display will show a Level Number that will be between 0 and 9 press either PARAM Top Right or SET Bottom Right...

Страница 25: ...Page 25 5 6 SEM 1C TRACTION STANDARD WIRING DIAGRAMS MENU...

Страница 26: ...t the CREEP level starting from level 0 The machine should just move when the accelerator microswitch is closed Increase the Level accordingly 8 Set the Speed Reductions as required Make adjustments t...

Страница 27: ...Problem with Chopper 3 VFIELD NOT OK Problem with Field Voltage 4 VACC NOT OK Potentiometer Wiper 4 PEDAL WIRE KO Pedal wire not OK 5 NO FIELD CUR Field wiring not OK or field current sensor not OK 5...

Страница 28: ...led b Error in the starting sequence from the operator c Error in the wiring 5 FORW BACK This check is made continually The alarm is generated when forward and reverse direction are requested simultan...

Страница 29: ...or PPOT are open circuit 11 STBY I HIGH This test is made during the initial diagnosis and at standby The test verifies that the current is zero This Alarm disables the machine Possible causes a defec...

Страница 30: ...16 TH PROTECTION If the temperature of the chopper rises higher than 70 C this alarm is generated The chopper current is reduced in proportion to the increase in temperature At 80 C the chopper total...

Страница 31: ...level is shown on the Left Hand Side of the Console Display and the value in percentage is shown on the Right Hand Side 8 FORWARD SWITCH the level of the Forward direction digital entry MA pin B6 ON...

Страница 32: ...the TESTER function 7 The first variable to be tested is shown on the Display 8 Press either ROLL UP or ROLL DOWN buttons until your desired variable for measurement appears on the Display 9 Next var...

Страница 33: ...showing how to use the SAVE function of the Digital Console 1 Opening Zapi Display 2 Press ENTER to go into the General menu 3 The Display will show 4 Press either ROLL UP or ROLL DOWN button until SA...

Страница 34: ...Digital Console 1 Opening Zapi Display 2 Press ENTER to go into the General menu 3 The Display will show 4 Press either ROLL UP or ROLL DOWN button until RESTORE PARAM appears on the display 5 The Di...

Страница 35: ...ing Zapi Display 2 Press ENTER to go into the General menu 3 The Display will show 4 Press ROLL UP or ROLL DOWN button until PARAMETER CHANGE appears on the display 5 The Display will show 6 Press ENT...

Страница 36: ...until PROGRAM VACC appears on the display 5 Tthe Display will show 6 Press ENTER to go into the PROGRAM VACC routine 7 The Display will show the minimum and maximum values of potentiometer wiper outpu...

Страница 37: ...d 125A Fuse C16503 Protected 200A Fuse C16520 6 3A 5x20mm Control Circuit Fuse P99060 Red LED C12372 8 Way Molex Connector C12416 6 Way Molex Connector C12371 3 Way Molex Connector C12769 Insert for M...

Страница 38: ...el Check every 3 months Check the mechanical operation of the Contactor s Moving contacts should be free to move without restriction Check every 3 months Checks should be carried out by qualified pers...

Страница 39: ...E APPARECCHIATURE ELETTRONICHE OLEODINAMICHE INDUSTRIALI 42028 POVIGLIO R E Via Parma 59 ITALIA Tel 39 0522 960050 r a Fax 39 0522 960259 e mail infozapi tin it INSTALLATION AND USER MANUAL CHOPPER SE...

Отзывы: