SIMADYN D Digital Control System User Manual Expansion Module IT41 Edition 04.97 DK No. 224841
User Manual, Expansion Module IT41 Edition Status 1 Expansion Module IT41 05.95 2 Expansion Module IT41 04.97 Copying of this document and giving it to others and the use or communication of the contents thereof is forbidden without express authority. Offenders are liable to the payment of damages. All rights are reserved in the event of the grant of a patent or the registration of a utility model or design. We have checked the contents of this Manual to ensure that they coincide with the described hardware and software. However, deviations cannot be completely ruled-out, so we cannot guarantee complete conformance. However, the information in this document is regularly checked and the necessary corrections included in subsequent editions. We are thankful for any recommendations or suggestions.
Inhalt Contents Warning information............1 1. Ordering information............3 2. Function description............3 2.1. General information..........3 3. Board design............5 4. Important application information.........6 5.Technical data............8 5.1. General information..........8 5.2. Power supply............8 5.3. Current drain............8 5.4. Binary inputs (connector X7).........9 5.5. Binary outputs (connector X7).........9 5.6. Analog outputs (connector X6).........9 5.7. Analog inputs (connector X7).........9 5.8. Speed sensing inputs (connector X6).........10 5.8.1. 15V three-phase encoder with/without zero pulse......10 5.8.2. 5V 3-phase and 5V 2-phase encoder (without zero pulse)...10 5.8.3. Monitoring inputs, pulse encoder...... 11 5.8.3.1. 15V 3-phase encoder with/without zero pulse......11 5.8.3.2. 5V 3-phase encoder and 5 V 2-phase encoder (alarm inputs)...11 5.8.3.3. Alarm reset outputs.........11 5.8.4. Power supply connection for pulse encoders......11 6. Connector assignments............12 6.1. Connector X6............12 6.2. Connector X7............13 7. Struc mask, IT41............14 8. Supplementary components (optional).........14 8.1. Interface modules............14 8.2. Cable sets............15 9. Others...............19 9.1. Attachments............19 9.1.1. Block diagram.........19 9.1.2. Dimension drawing.........20 9.1.3. Layout diagram.........20 10. ESD instructions............21 Siemens AG Dk No. 224841 Edition 04.97
Warning information Edition 04.97 Siemens AG Dk No. 224841
Warning information N O T E! The information in this Manual does not purport to cover all details or variations in equipment, nor to provide for every possible contingency to be met in connection with installation, operation or maintenance. Should further information be desired or should particular problems arise which are not covered sufficiently for the purchaser s purposes, please contact your local Siemens office. Further, the contents of this Manual shall not become a part of or modify any prior or existing agreement, committment or relationship. The sales contract contains the entire obligation of Siemens. The warranty contained in the contract between the parties is the sole warranty of Siemens. Any statements contained herein do not create new warranties nor modify the existing warranty.. Warning information W A R N I N G! Electrical equipment has components which are at dangerous voltage levels. If these instructions are not strictly adhered to, this can result in severe bodily injury and material damage. Only appropriately qualified personnel may work on this equipment or in its vicinity. This personnel must be completely knowledgeable about all the warnings and service measures according to this User Manual. The successful and safe operation of this equipment is dependent on proper handling, installation, operation and maintenance. Siemens AG Dk No. 224841 Edition 04.97 1
Warning information Definitions * QUALIFIED PERSONNEL For the purpose of this User Manual and product labels, a Qualified person is someone who is familiar with the installation, mounting, start-up and operation of the equipment and the hazards involved. He or she must have the following qualifications: 1. Trained and authorized to energize, de-energize, clear, ground and tag circuits and equipment in accordance with established safety procedures. 2. Trained in the proper care and use of protective equipment in accordance with established safety procedures. 3. Trained in rendering first aid. * DANGER For the purpose of this User Manual and product labels, Danger indicates death, severe personal injury and/or substantial property damage will result if proper precautions are not taken. * WARNING For the purpose of this User Manual and product labels, Warning indicates death, severe personal injury or property damage can result if proper precautions are not taken. * CAUTION For the purpose of this User Manual and product labels, Caution indicates that minor personal injury or material damage can result if proper precautions are not taken. * NOTE For the purpose of this User Manual, Note indicates information about the product or the respective part of the User Manual which is essential to highlight. C A U T I O N! This board contains components which can be destroyed by electrostatic discharge. Prior to touching any electronics board, your body must be electrically discharged. This can be simply done by touching a conductive, grounded object immediately beforehand (e.g. bare metal cabinet components, socket protective conductor contact). W A R N I N G! Hazardous voltages are present in this electrical equipment during operation. Non-observance of the safety instructions can result in severe personal injury or property damage. It is especially important that the warning information in all of the relevant Operating Instructions are strictly observed. 2 Edition 04.97 Siemens AG Dk No. 224841
Ordering information 1. Ordering information IT41: 6DD 1606-3AC0 2. Function description 2.1. General information The IT41 expansion module is used in the SIMADYN D system to process general technological open-loop and closed-loop tasks, such as, for example, closed-loop speed or position controls. The IT41 expansion module is plugged-onto the PM4 basic processor board using a 96-pin plug connector. The expansion module power supply is realized through the basic processor board. If required, one additional IT41 or IT42 expansion module can be plugged-onto the IT41 expansion module. In addition to the analog and binary inputs/outputs, the IT41 has 4 pulse encoder inputs for closedloop speed or position controls, which can either be configured for 3-phase encoders (incremental encoder with 2 tracks displaced through 90, with/without zero pulse), or 2-phase encoders (incremental encoder, one track for the forwards- and track for the reverse pulses). All of the input/output signal conductors are not directly connected to the expansion module, but are indirectly connected through the interface modules. The interface modules are used as a mechanical connecting element and also to electrically adapt the incoming plant signals. Siemens AG Dk No. 224841 Edition 04.97 3
Function description IT41 expansion module, periphery 50-pin, sub-d X6 50-pin, sub-d X7 Product release label, IT41 File : IT41_P1.DRW Fig.1: Front view of the IT41 4 Edition 04.97 Siemens AG Dk No. 224841
Board design 3. Board design The IT41 expansion board has the following features * 2 front panel connectors X6 and X7 for the input and output signals * Board identification code * 4 analog inputs 12 bit resolution, typical 10-bit absolute accuracy over the complete temperature range * 4 analog outputs 16 bit resolution, 14-bit monotone, typical 13-bit absolute accuracy over the complete temperature range * 16 binary inputs * 16 binary outputs with P24 connection for an external supply * 4 pulse sensing inputs (for determining speed and position), floating using two internal board connectors per channel (X100,X101 to X400,X401), eachchannel can either be configured for 15 V 3-phase encoders, or for 5 V 3-phase encoders and 5 V 2-phase encoders (e.g. SONY encoder, type HA 705 LK / MSD 560). * 4 monitoring inputs for 15 V three-phase encoders * 4 interrupt inputs for 5 V 2/3 phase encoders (e.g. SONY encoder, type HA 705 LK / MSD 560) This should not be confused with the alarm inputs (connector X5) of the basic processor board PM4! * 4 outputs to reset the 5 V 2/3 phase encoder alarm signals Siemens AG Dk No. 224841 Edition 04.97 5
Important application information 4. Important application information The subracks must be equipped with bus terminating modules or buffer memory boards. The expansion module can only be used with the PM4. The basic processor board and expansion board each occupy 1 slot. The board must be tightly screwed into the subrack to ensure perfect operation (also during start-up). If the board is inserted in an adapter for testing, the front panel must be connected to the housing through a short conductor. It is not permissible to insert or withdraw the board when the subrack is powered-up. All inputs and outputs are connected to the plant-side signal cables via appropriate interface modules (refer to Section...). Please observe the orientation of the coding plug (refer to Fig. 2)! The coding plug is assigned to the pulse encoder channels as follows : X100,X101 - Pulse encoder channel 1 X200,X201 - " 2 X300,X301 - " 3 X400,X401 - " 4 Depending on the coding plug orientation, either select the 15 V 3-phase encoder or 5 V 2-phase encoder (e.g. SONY encoder). The board is always set for a 15 V 3-phase encoder. Caution: Incorrectly inserted coding plugs can cause the inputs to be destroyed when pulses are fed-in! 6 Edition 04.97 Siemens AG Dk No. 224841
Important application information X100 X200 X101 X201 Configured for 5 V encoder (e.g. SONY) X6 X300 X301 Configured for 15 V encoder. X400 X401 X7 (Component side, IT41). Fig. 2 File : IT41_P1.DRW Siemens AG Dk No. 224841 Edition 04.97 7
Technical data 5.Technical data 5.1. General information Insulation group A acc. to VDE 0110, Para. 13, Group 2 at 24 V DC, 15 V DC, 5 V DC Ambient temperature 0 to +55 degrees C and fan operation Storage temperature -40 to +70 degrees C Humidity rating F acc. to DIN 40050 Altitude rating S acc. to DIN 40040 Mechanical stressing Installation in stationary but not necessarily vibration-free equipment Packaging system ES 902 C Dimensions 233.4 mm * 220 mm Board width 1 slot = 20.14 mm Weight 475g 5.2. Power supply Rated voltage Minimum Maximum Polarity Fusing reversal protection +5 V +4.75 V +5.25 V no no +15 V +14.4 V +15.6 V no no -15 V -15.6 V -14.4 V no no 5.3. Current drain Voltage Typical current drain +5 V 420 ma +15 V 450 ma (+ encoder loading) -15 V 175 ma 24 V (external) 100 ma (+ loading of the binary outputs) 8 Edition 04.97 Siemens AG Dk No. 224841
Technical data 5.4. Binary inputs (connector X7) No. 16 non-floating (connector X7) 4 non-floating, interrupt-capable (connector X5) Input voltage +24 V nominal for a 0 signal -1 V to +6 V or open binary inputs for a 1 signal +13 V to +33 V Input current for a 0 signal 0 ma for a 1 signal 3 ma typ. Delay time 50 µsec 5.5. Binary outputs (connector X7) No. 16, non-floating Supply voltage external -nominal value 24 V DC -permissible range +20 V to 30 V incl. ripple -briefly +35 V, max. 0.5 sec Output current for a 1 signal -nominal current 50 ma -permissible range up to 50 ma Short-circuit protection electronic (thermal) Limiting inductive switch-off voltages Supply voltage + 1 V Total load 80 % at 50 degrees C, all outputs, 50 ma Residual current 20 µa at 0 signal Signal level -for a 0 signal max. 3 V -for a 1 signal - 2.5 V supply voltage Switching delay max. 15 µs 5.6. Analog outputs (connector X6) No. 4 Design output with associated ground, non-floating Output voltage range -10 V to +10 V Output current +/- 10 ma Resolution 16 bit Monotony 14 bit over the complete temperature range Absolute accuracy typ. 13 bits over the complete temperature range Short-circuit prot. to ground yes 5.7. Analog inputs (connector X7) No. 4 Design differential inputs, non-floating; Input voltage range -10 V +/- 4 LSB to +10 V +/- 4 LSB (1 LSB = 4.88 mv) Input resistance 470 kohm Input filter -3 db transition frequency: 1.5 khz Resolution 12 bit Absolute accuracy typ. 10 bits over the complete temperature range Max. conversion time 45 µsec Siemens AG Dk No. 224841 Edition 04.97 9
Technical data 5.8. Speed sensing inputs (connector X6) 5.8.1. 15V three-phase encoder with/without zero pulse No. of encoders max. 4 Design differential inputs, floating; Internal current limiting approx. 15 ma (electronic) Track signals A, B and zero pulse track N Tracks A and B phase-shifted through 90 degrees Pulse frequency max. 1 MHz (track frequency) Phase diff.of the track signals independent of the pulse frequency, min. 200 nsec Input signal level -for a 0 signal -30 V to +4 V (for 15 ma load) -for a 1 signal +8 V to + 30 V (for 15 ma load) Permissible input voltage range -30 V to +30 V differential voltage Fault pulse suppression per software, can be configured Note : The pulse encoders used must be able to output voltages in the above specified ranges with an approx. 15 ma loading. 5.8.2. 5V 3-phase and 5V 2-phase encoder (without zero pulse) No. of encoders max. 4 Design differential inputs, floating; Perm. input voltage range differential voltage, -5 V to +5 V Max. input current 15 ma (caution, is not limited by the board!) Input voltage -for a 0 signal -5 V to 0 V -for a 1 signal +3 V to +5 V Input circuit Series resistor + optocoupler, in parallel, a dynamic termination; Input resistance -steady-state 180 Ohm -dynamic 100 Ohm (corr. to the line impedance of a twisted-pair cable) Note : It is possible to directly connect a SONY encoder, HA 705 LK / MSD-560. 10 Edition 04.97 Siemens AG Dk No. 224841
Technical data 5.8.3. Monitoring inputs, pulse encoder 5.8.3.1. 15V 3-phase encoder with/without zero pulse No. 4 Design as for the binary inputs, refer to 5.4 5.8.3.2. 5V 3-phase encoder and 5 V 2-phase encoder (alarm inputs) No. 4 Design non-floating Perm. input voltage range 0 V to +5 V Input voltage -for a 0 signal < 1.4 V -for a 1 signal > 2.0 V Input current -for a 0 signal min. -5 ma, max. -3,6 ma -for a 1 signal min. -3 ma, max. 0 ma Note : It is possible to directly connect a SONY encoder - HA 705 LK / MSD-560. 5.8.3.3. Alarm reset outputs No. 4 Design non-floating Output voltage 15 V via 1 kohm output resistor Output voltage for 10 ma load 5 V Note : A SONY encoder HA 705 LK / MSD-560 can be directly connected. 5.8.4. Power supply connection for pulse encoders Output voltage Max. output current Design approx. 14 V 100 ma non-floating, electronic short- and overload protection Siemens AG Dk No. 224841 Edition 04.97 11
Connector assignments 6. Connector assignments 6.1. Connector X6 50-pin sub-d, pulse inputs, analog outputs Pin No. Significance Connector 1 Incremental encoder 1, track A+ / SONY encoder 1 V+ X6A 34 " " A- / " " V- X6A 18 " " B+ / " " R+ X6A 2 " " B- / " " R- X6A 35 " " N+ X6A 19 " " N- X6A 3 Incremental encoder 2, track A+ / SONY encoder 2 V+ X6B 36 " " A- / " " V- X6B 20 " " B+ / " " R+ X6B 4 " " B- / " " R- X6B 37 " " N+ X6B 21 " " N- X6B 5 Incremental encoder 3, track A+ / SONY encoder 3 V+ X6C 38 " " A- / " " V- X6C 22 " " B+ / " " R+ X6C 6 " " B- / " " R- X6C 39 " " N+ X6C 23 " " N- X6C 7 Incremental encoder 4, track A+ / SONY encoder 4 V+ X6D 40 " " A- / " " V- X6D 24 " " B+ / " " R+ X6D 8 " " B- / " " R- X6D 41 " " N+ X6D 25 " " N- X6D 9 (15V encoder power supply) 42 Ground, encoder 26 Ground, encoder 10 Monitoring input 1 (for incremental encoder) X6A 43 " 2 " X6B 27 " 3 " X6C 11 " 4 " X6D 44 Interrupt input 1 (for SONY encoder) X6A 28 " 2 " X6B 12 " 3 " X6C 45 " 4 " X6D 29 Interrupt output 1 (or SONY encoder) X6A 13 " 2 " X6B 46 " 3 " X6C 30 " 4 " X6D 14 Alarm ground (for SONY encoder) 47 Ground, D/A converter 31 " " " " 15 Analog output 1+ X6E 48 " 1- X6E 32 " 2+ X6F 16 " 2- X6F 49 " 3+ X6G 33 " 3- X6G 17 " 4+ X6H 50 " 4- X6H 12 Edition 04.97 Siemens AG Dk No. 224841
Connector assignments 6.2. Connector X7 50-pin sub-d, binary inputs/outputs, analog inputs Pin No. Significance Connector 1 Binary output 1 X7A 34 " " 2 X7A 18 " " 3 X7A 2 " " 4 X7A 35 " " 5 X7A 19 " " 6 X7A 3 " " 7 X7A 36 " " 8 X7A 20 External power supply (P24) 4 External ground (M24) 37 Binary output 9 X7B 21 " " 10 X7B 5 " " 11 X7B 38 " " 12 X7B 22 " " 13 X7B 6 " " 14 X7B 39 " " 15 X7B 23 " " 16 X7B 7 External power supply (P24) 40 External ground (M24) 24 Binary input 1 / trigger input 1 X7C 8 " " 2 / trigger input 2 X7C 41 " " 3 / trigger input 3 X7C 25 " " 4 / trigger input 4 X7C 9 " " 5 X7C 42 " " 6 X7C 26 " " 7 X7C 10 " " 8 X7C 43 External power supply (P24) 27 External ground (M24) 11 Binary input 9 X7D 44 " " 10 X7D 28 " " 11 X7D 12 " " 12 X7D 45 " " 13 X7D 29 " " 14 X7D 13 " " 15 X7D 46 " " 16 X7D 30 External power supply (P24) 14 External ground (M24) 47 Ground, A/D converter 31 " " " " 15 Analog input 1+ X7E 48 " " 1- X7E 32 " " 2+ X7F 16 " " 2- X7F 49 " " 3+ X7G 33 " " 3- X7G 17 " " 4+ X7H 50 " " 4- X7H Siemens AG Dk No. 224841 Edition 04.97 13
Struc mask, IT41 7. Struc mask, IT41 : IT41 "Technology module, LE-Bus" X6A 4K < "Speed sensing 1" X6B 4K < "Speed sensing 2" X6C 4K < "Speed sensing 3" X6D 4K < "Speed sensing 4" X7C 8K < "Binary inputs 1" X7D 8K < "Binary inputs 2" X7E 1K < "A/D converter 1" X7F 1K < "A/D converter 2" X7G 1K < "A/D converter 3" X7H 1K < "A/D converter 4" X6E 1K > "D/A converter 1" X6F 1K > "D/A converter 2" X6G 1K > "D/A converter 3" X6H 1K > "D/A converter 4" X7A 8K > "Binary outputs 1" X7B 8K > "Binary outputs 2" 8. Supplementary components (optional) 8.1. Interface modules The signal cables on the plant side must be fed to the board via an interface module. The following SE modules are recommended: - SB10 6DD 1681-0AE2 8 x 24 V binary inputs or outputs, LED non-floating - SB60 6DD 1681-0AF4 8, 220/24V binary inputs, LED floating - SE61 6DD 1681-0EB3 8, 48 V / 24 V binary inputs, LED floating - SU12 6DD 1681-0AJ1 10 terminals / 10-pin connector - SU10 6DD 1681-0FG0 26 terminals / 26-pin connector acc. to DIN 41651 14 Edition 04.97 Siemens AG Dk No. 224841
Supplementary components (optional) 8.2. Cable sets The following cables can be used to connect the interface modules to the board: - SC49 6DD 1684-0EK0 50-core, twisted pair cable; changes-over from 50-pin sub-d plug connector, according to DIN 41652, to a 2 x 26-pin socket connector, according to DIN 41651; - SC54 6DD 1684-0FE0 50-core twisted pair cable; changes-over between 50-pin sub-d plug connector, according to DIN 41652, to a 5 x 10-pin socket connector, according to DIN 41651 Cable SC53 and SU10 interface modules are recommended for connectors X6 and X7. When using this cable, the connector assignment is changed-over according to the following tables: Siemens AG Dk No. 224841 Edition 04.97 15
Supplementary components (optional) For connector X6: Socket connector acc. to DIN 41651 (or connector assign. SU10) Sub-D plug connector acc. to DIN 41652 (or connector assign. X6) Significance A1 1 Incremental encoder 1, track A+ / SONY encoder 1 V+ A2 34 " " A- / " " V- A3 18 " " B+ / " " R+ A4 2 " " B- / " " R- A5 35 " " N+ A6 19 " " N- A7 3 Incremental encoder 2, track A+ / SONY encoder 2 V+ A8 36 " " A- / " " V- A9 20 " " B+ / " " R+ A10 4 " " B- / " " R- A11 37 " " N+ A12 21 " " N- A13 5 Incremental encoder 3, track A+ / SONY encoder 3 V+ A14 38 " " A- / " " V- A15 22 " " B+ / " " R+ A16 6 " " B- / " " R- A17 39 " " N+ A18 23 " " N- A19 7 Incremental encoder 4, track A+ / SONY encoder 4 V+ A20 40 " " A- / " " V- A21 24 " " B+ / " " R+ A22 8 " " B- / " " R- A23 41 " " N+ A24 25 " " N- A25 9 (15V encoder power supply) B1 42 Ground, encoder B2 26 Ground, encoder B3 10 Monitoring input 1 (for incremental encoders) B4 43 " 2 " B5 27 " 3 " B6 11 " 4 " B7 44 Alarm input 1 (for SONY encoder) B8 28 " 2 " B9 12 " 3 " B10 45 " 4 " B11 29 Alarm output 1 (or SONY encoder) B12 13 " 2 " B13 46 " 3 " B14 30 " 4 " B15 14 Alarm ground (for SONY encoders) B16 47 Ground, D/A converter B17 31 " " " " B18 15 Analog output 1+ B19 48 " 1- (ground, D/A converter) B20 32 " 2+ B21 16 " 2- (ground, D/A converter) B22 49 " 3+ B23 33 " 3- (ground, D/A converter) B24 17 " 4+ B25 50 " 4- (ground, D/A converter) 16 Edition 04.97 Siemens AG Dk No. 224841
Supplementary components (optional) For connector X7: Socket connector acc. to DIN 41651 (or connector assign. SU10) Sub-D plug connector acc. to DIN 41652 (or connector assign. X7) Significance A1 1 Binary output 1 A2 34 " " 2 A3 18 " " 3 A4 2 " " 4 A5 35 " " 5 A6 19 " " 6 A7 3 " " 7 A8 36 " " 8 A9 20 External power supply (P24) A10 4 External ground (M24) A11 37 Binary output 9 A12 21 " " 10 A13 5 " " 11 A14 38 " " 12 A15 22 " " 13 A16 6 " " 14 A17 39 " " 15 A18 23 " " 16 A19 7 External power supply (P24) A20 40 External ground (M24) A21 24 Binary input 1 A22 8 " " 2 A23 41 " " 3 A24 25 " " 4 A25 9 " " 5 B1 42 " " 6 B2 26 " " 7 B3 10 " " 8 B4 43 External power supply (P24) B5 27 External ground (M24) B6 11 Binary input 9 B7 44 " " 10 B8 28 " " 11 B9 12 " " 12 B10 45 " " 13 B11 29 " " 14 B12 13 " " 15 B13 46 " " 16 B14 30 External power supply (P24) B15 14 External ground (M24) B16 47 Ground, A/D converter B17 31 " " " " B18 15 Analog input 1+ B19 48 " " 1- B20 32 " " 2+ B21 16 " " 2- B22 49 " " 3+ B23 33 " " 3- B24 17 " " 4+ B25 50 " " 4- Siemens AG Dk No. 224841 Edition 04.97 17
Supplementary components (optional) The SC49 cable can also be used connector X7. The following chnageover is obtained according to the following table : For connector X7: 5 x socket connectors acc. to DIN 41651 Sub-D plug connector acc. to DIN 41652 (and connector assign. X7) Significance A1 1 Binary output 1 A2 34 " " 2 A3 18 " " 3 A4 2 " " 4 A5 35 " " 5 A6 19 " " 6 A7 3 " " 7 A8 36 " " 8 A9 20 External power supply (P24) A10 4 External ground (M24) B1 37 Binary output 9 B2 21 " " 10 B3 5 " " 11 B4 38 " " 12 B5 22 " " 13 B6 6 " " 14 B7 39 " " 15 B8 23 " " 16 B9 7 External power supply (P24) B10 40 External ground (M24) C1 24 Binary input 1 C2 8 " " 2 C3 41 " " 3 C4 25 " " 4 C5 9 " " 5 C6 42 " " 6 C7 26 " " 7 C8 10 " " 8 C9 43 External power supply (P24) C10 27 External ground (M24) D1 11 Binary input 9 D2 44 " " 10 D3 28 " " 11 D4 12 " " 12 D5 45 " " 13 D6 29 " " 14 D7 13 " " 15 D8 46 " " 16 D9 30 External power supply (P24) D10 14 External ground (M24) E1 47 Ground, A/D converter E2 31 " " " " E3 15 Analog input 1+ E4 48 " " 1- E5 32 " " 2+ E6 16 " " 2- E7 49 " " 3+ E8 33 " " 3- E9 17 " " 4+ E10 50 " " 4-18 Edition 04.97 Siemens AG Dk No. 224841
Others 9. Others 9.1. Attachments 9.1.1. Block diagram Pulse sensing 1/2 Pulse sensing 3/4 Electrical isolation Changeover switch Changeover switch Changeover switch Changeover switch Incremental-, SONYinputs Driver T filter Binary inputs Latch 50 ma driver Binary outputs Monitoring inputs, alarm identification, alarm reset Monitoring inputs D A IT41 controller D A Analog outputs Address bus Data bus Control bus D D A A Dual port RAM D A M U X + - Analog inputs Address bus Data bus Control bus P5 M P15 N15 Local expansion bus File : IT41_P1.DRW Siemens AG Dk No. 224841 Edition 04.97 19
9.1.2. Dimension drawing Dimension drawing, with view of the IT41 front panel 2SE. 465 606. 9302. 01 MB 9.1.3. Layout diagram Layout diagram IT41 2SE. 465 606. 7302. 01 AO 20 Edition 04.97 Siemens AG Dk No. 224841
ESD instructions 10. ESD instructions Components which can be destroyed by electrostatic discharge (ESD) Generally, electronic boards should only be touched when absolutely necessary. The human body must be electrically discharged before touching an electronics board. This can be simply done by touching a conductive, grounded object directly beforehand (e.g. bare metal cubicle components, socket outlet protective conductor contact). Boards must not come into contact with highly-insulating materials - e.g. plastic foils, insulated desktops, articles of clothing manufactured from man-made fibers. Boards must only be placed on conductive surfaces. When soldering, the soldering iron tip must be grounded. Boards and components should only be stored and transported in conductive packaging (e.g. metalized plastic boxes, metal containers). If the packing material is not conductive, the boards must be wrapped with a conductive packing material, e.g. conductive foam rubber or household aluminum foil. The necessary ESD protective measures are clearly shown in the following diagram. a = Conductive floor surface b = ESD table c = ESD shoes d = ESD overall e = ESD chain f = Cubicle ground connection Seated Standing Standing / sitting Siemens AG Dk No. 224841 Edition 04.97 21
ESD instructions Drives and Standard Products Motors and Drive Systems Group Postfach 3269, D-91050 Erlangen System-Based Drive Technology 22 Edition 04.97 Siemens AG Dk No. 224841
ESD instructions Siemens AG Dk No. 224841 Edition 04.97 23