INDEX Page LEGEND ......................3 COLOUR CODES (Single Colours) ..............3 Introduction to the ZAPI-MOS Family ............4 General Characteristics ................5 Technical Specifications ................ 5 Control Units..................5 2.2.a Microswitches ................5 2.2.b Potentiometer ................6 Safety & Protection Features ..............7 Direction Orientation ................
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SIGNED IN APPROVAL Publication n°: ADRZP0BA Edition: June 2001 Page 2...
Reverse Switch Speed Reduction 1 Speed Reduction 2 T SW Tiller Switch COLOUR CODES (SINGLE COLOURS) The following Codes represent the colours of individual wires used by Zapi (unless specified otherwise). - Orange Brown - White Black BB - Blue...
1 INTRODUCTION TO THE ZAPI-MOS FAMILY The ZAPIMOS chopper family represents ZAPI’s answer to the needs of the 90’s. To ensure that products remain on the market, without running the risk of becoming technically obsolescent, the ZAPIMOS family offers the following features: - Advanced technology.
2 GENERAL CHARACTERISTICS 2.1 TECHNICAL SPECIFICATIONS Chopper for Separately Excited DC motors ..........0.35 ÷ 0.8kW Regenerative Braking Voltage Range ...................... 24VDC Maximum Field Current (all the versions) ..............35 A Armature Switching Frequency ................16kHz Field Switching Frequency ..................16kHz Maximum Ambient temperature ................
2.2.b Potentiometer The Potentiometer should be wired in the 3 - Wire Configuration. CPOT (A2) signal ranges from 0 to 10V. Minimum Potentiometer Resistance : 500Ω Maximum Potentiometer Resistance : 10kΩ Faults can occur if the potentiometer is out of this range. The Procedure for automatic potentiometer signal acquisition is carried out using the Console.
2.3 SAFETY & PROTECTION FEATURES - Connection Errors : All Inputs are protected against connection errors. - Thermal Protection : If the chopper temperature exceeds 75°C, the maximum current reduces in proportion to the thermal increase. The temperature can never exceed 90°C (below - 10°C, the current is reduced to 80%).
2.5 OPERATIONAL FEATURES - Speed Control. - Optimum sensitivity at low speeds. - Speed Reductions in both the directions. Levels can be set using Console. - Regenerative Braking based on deceleration ramps, in every condition. - Three different modes of Braking : Release Braking, Inversion Braking, Deceleration Braking.
2.6 SEM-X CHOPPER DIAGNOSIS The microprocessor continually monitors the chopper and carries out diagnostic procedures on the main functions. The diagnosis is made in 4 points: 1) Diagnosis on key Switch closing that checks: the Watch Dog Circuits, the current sensors, VMN point, Main Contactor Driver, if the switch sequence for operation is correct, and if the output of the accelerator or tiller is correct.
If it is necessary to use two or more control units (eg. Lift + traction), the choppers must be of the High Frequency Zapi family. - Do not connect the chopper to a battery with a different nominal voltage to the value indicated on the chopper.
3 INSTALLATION Install the chopper baseplate onto a flat metallic surface that is clean and unpainted. Apply a thin layer of thermo-conductive grease between the two surfaces to permit better heat dissipation. Despite the protection provided against external agents, the continuous attack of corrosive elements and substances may cause oxidization of connector contacts, resulting in bad operation.
3.4 DESCRIPTION OF SEM-X CONNECTORS PIN REFERENCE DESCRIPTION NPOT Provides a negative supply to accelerator's potentiometer; the circuit is designed to provide a control against wire disconnection. CPOT Accelerator's potentiometer wire input. PPOT Provides a positive to supply accelerator's potentiometer, protected against short to +B and -B.
PIN REFERENCE DESCRIPTION A11 NEB electric brake driver output, 1.5A continuous, protected against shortcircuits. A12 NLED Output to drive a led, 100mA max. A13 --- A14 NMC Line contactor driver output, 1.0A continuous, protected against shortcircuit. A15 PMC Line contactor coil positive supply, 1.0A continuous. A16 KEY Controller supply, must be connected to +B through a cable and a 6.3A fuse.
4 PROGRAMMING & ADJUSTMENTS USING DIGITAL CONSOLE 4.1 ADJUSTMENTS VIA CONSOLE Adjustment of Parameters and changes to the chopper’s configuration are made using the Digital Console. The Console is connected to the “B” connector of the SEM-X Chopper. Pay attention to the polarity of the Console Connector when connecting to the chopper.
5.2 DESCRIPTION OF PROGRAMMABLE FUNCTIONS (OPTIONS) Using the CONFIG MENU of the console, it is possible to select from the following options: SUBMENU “SET OPTIONS”: HOUR COUNTER: - RUNNING: The counter registers travel time only. - KEY ON: The counter registers when the key switch is Closed. QUICK INVERSION: - BELLY: Quick inversion is activated while the Belly Button is...
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Flow Chart showing how to make changes to Configuration Menu using Digital Console. (Standard Eprom CK ULTRA fitted). 1) Opening Zapi Menu. 2) Press Top Left & Top Right Buttons simultaneously to enter the Config. Menu. 3) The Display will show : 4) Press ROLL UP (Top Left Button) until SET OPTIONS appears.
5.3 DESCRIPTION OF PARAMETERS THAT MAY BE PROGRAMMED In addition to the Configuration, Parameter settings may be made by Zapi using standard default settings, settings to Customer Specifications, or the customer may make changes according to the application, using a Digital Console.
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14 FIELD NOM. CURR. = Nominal Field Current. This parameter fixes the minimum Field Current when the potentiometer is between 0% and 60% without total conduction of the Armature. Adjustment should be made with reference to the Data on the Motor Label. (The indication of Nominal Field Current). 15 CREEP SPEED = Minimum Speed.
5.4 TABLE OF ADJUSTMENTS The following Table shows the different values that the SEM2 Parameters may be adjusted to. A suitable acceleration performance assumes: FIELD CURR. NOM is set to level 5, and MAX SPEED (Fwd or Rev) is set to level 9. PROGRAMMED LEVEL PARAMETERS UNIT...
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Flow Chart showing how to make Program changes using Digital Console fitted with Eprom CK ULTRA. 1) Opening Zapi Display. 2) Press ENTER to go into the General Menu. 3) The Display will show : 4) Press ENTER to go into the Parameter Change facility.
5.5 MENU SPECIAL ADJUST 1) SET TEMPERATURE Adjusts the temperature of the chopper. 2) MAXIMUM CURRENT Software adjustment of the maximum current level of the chopper. It's a password protected parameter. 3) ADJ FIELD NOM FW Software adjustment of the field nominal current in forward direction. It's a password protected parameter.
5.7 MENU ADJUSMENT 1) ADJUST BATTERY Sets the correct battery voltage level. 2) THROTTLE 0 ZONE Sets the pedal curve type. 3) THROTTLE X POINT Sets the pedal curve type. 4) THROTTLE Y POINT Sets the pedal curve type. Page 25...
5.9 SEQUENCE FOR SEM-X TRACTION SETTINGS When the Key Switch is Closed, if no Alarms or Errors are present, the Console Display will be showing the Standard Zapi Opening Display. If the chopper is not Configured to your requirements, follow the Sequence detailed on Page 20.
6 SEM-X DIAGNOSTICS The following list shows likely problems associated with the flashing RED LED. N° FLASHES MESSAGE NOTES Watch-dog: Logic board and/or software failure. EEPROM KO: Problem with EEPROM or Logic. CHECK UP NEEDED Check up timeout. INCORRECT START: Starting sequence for travel not correct.
6.1 ANALYSIS OF ALARMS DISPLAYED ON THE CONSOLE WATCH DOG AL 8 MDI The test is executed at the key turn-on, at the stand-by and on running. Possible causes: a) Watch-dog hardware circuit not OK; b) Software not OK. EEPROM KO AL 13 MDI Fault in the area of memory where the adjustment parameters are stored.
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VFIELD NOT OK AL 15 MDI This test is made at standby with the Line Contactor open. In this condition the voltages on both the connections of field must be to around ½ VBatt. This alarm is generated if the field voltage is different from this value. Possible causes: d) Frame fault on the motor to chassis;...
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15 CONTACTOR CLOSED AL 37 MDI This check is made during the initial diagnosis. With the coil of the line contactor de- energized, the capacitors should not be charged, unless there is divert resistor across the power poles. Possible causes: a) The line contactor power poles are welded.
6.2 TESTER DESCRIPTION OF THE FUNCTIONS The most important input or output signals can be measured in real time using the TESTER function of the console. The Console acts as a multimeter able to read voltage, current and temperature. The following definition listing shows the relative measurements : 1) BATTERY VOLTAGE: level of battery voltage measured at the input to the key switch.
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Flow Chart showing how to use the TESTER 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 TESTER MENU appear on the display.
9) Press ENTER to commence SAVE routine. 10) You can see the items that are being stored whilst the SAVE routine is happening. 11) When finished, the Console shows : 12) Press OUT to return to the Opening Zapi Display. Page 34...
13) You can see the items that are being stored in the chopper memory whilst the RESTORE routine is happening. 14) When finished the Console displays : 15) Press OUT to return to the Opening Zapi Display . Page 35...
10) When you have finished looking at the Alarms, press OUT to exit the ALARMS menu. 11) The Display will ask CLEAR LOGBOOK ? 12) Press ENTER for yes, or OUT for NO. 13) Press OUT to return to the Opening Zapi Display. Page 36...
11) Select the Reverse Direction and repeat Item 10. 12) When finished , press OUT. 13) The Display will ask : ARE YOU SURE ?. 14) Press ENTER for yes, or OUT for NO. 15) Press OUT again to return to the Opening Zapi Menu. Page 37...
7 RECOMMENDED SPARE PARTS FOR SEM-X Part Number Description C16519 Protected 150A Fuse. C16503 Protected 200A Fuse C16520 6.3A 5x20mm Control Circuit Fuse C12404 16 Way Molex Minifit Connector C12777 Insert for Molex Minifit Connectors C29543 SW 80 24V CO Single Pole Contactor Page 38...
The installation of this electronic controller should be made according to the diagrams included in this Manual. Any variations or special requirements should be made after consulting a Zapi Agent. The supplier is not responsible for any problem that arises from wiring methods that differ from information included in this Manual.