Instruction/ maintenance manual of the product ISP Elmo
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1 ISP - Rev 6/95 Rev 6/95.
2 ISP - Rev 6/95 ELMO-WARRANTY PERFORMANCE The warranty performance covers only ELMO's products and only the elimination of problems that are due to manufacturing defects resulting in impaired function, deficient workmanship or defective material.
3 ISP - Rev 6/95 How to use this manual - Flow Chart The ISP amplifier is designed for OEM applications. It enables the user to adjust the amplifier for various types of motors and to save valuable adjusting time in repetitive applications. Use the following flow chart in order to determine the chapters that you should read.
4 ISP - Rev 6/95 TABLE OF CONTENTS 1. Description ................................ ........................ 6 2. Type Designation ................................ ................... 7 3. Technical specifications ................................ .....
5 ISP - Rev 6/95 7.1.4 Activating the loss of tacho protection (velocity mode only) ................................ ........................... 37 7.1.5 Latch mode of the protective functions .............. 38 7.1.6 Activating the dynamic contouring of the current limits 38 7.
6 ISP - Rev 6/95 1. Description The ISP is an amplifier/power supply package, assembled on a single heatsink with a Eurocard size. The rated output is up to 1500W. The integrated power supply includes a shunt regulator. The ISP is available in either panel version or rack version with a 32 poles DIN 41612 connector.
7 ISP - Rev 6/95 2. Type Designation ISP F - 15 / 65 R W 4 ISP amplifier Fan cooled 4=40KHz, 6=60KHz R - Rack mounting Rated current 20KHz when not specified PWM switching frequency H - Panel mounting Maximum rated voltage for ISP-10/135 only Additional capacitance 3.
8 ISP - Rev 6/95 4. Operation of the servo control 4.1 Inputs The ISP has 3 inputs: 2 single ended inputs (no.1 at terminal 1 and no.2 at terminal 5) and one differential input at terminals 3,4. The current gain of inputs 1 and 2 (current mode) is given by: 8 x Ic x Ki Gc = --------------- (A/V) 15 + Ri Ic - amplifier rated continuous current.
9 ISP - Rev 6/95 The current gain of the differential input in velocity mode is given by: 266 x Ic Gvd = ---------------- (A/V) R3 x R6 R3,R6 in Kohm The maximum input voltage at terminals 1 or 5 is calculated by: Vin max = 10 + 0.
10 ISP - Rev 6/95 easily replaced in cases when COMP trimmer range is not enough to get optimum result. The output of the error amplifier is: 1 + SxC1xR5 Vo = (V 1 G v1 + V 2 G v2 ) x [ --------------------------- ] 1 + SxC1xR5(1 + RfxKi/R5) V 1 ,V 2 , - Input signals G v1 ,G v2 - Gain of inputs.
11 ISP - Rev 6/95 4.4 Current loop Current loop control is obtained by op amp U1/B (Current amplifier) and R7, C2 which form a lag-lead network for current loop. The standard amp is equipped with R7 (100Kohm) and C2 (0.01 æ F) to get optimum current response for an average motor in this power range.
12 ISP - Rev 6/95 Ip - Iop Tp = 2.2ln ---------- Ip - Ic Ic - Amplifier continuous current rating. Ip - Peak demanded (not amplifier Ip) Iop - Actual operating current before the peak demand. Example: A motor is driven by an ISP-15/65 amplifier at constant speed and constant current of 5A.
13 ISP - Rev 6/95 4.6 Operation of the shunt regulator A shunt regulator is included in the power supply section of the ISP. The shunt regulator is a switching type, wherein dissipative elements (resistors) are switched across the DC bus, whenever the voltage reaches a predetermined level.
14 ISP - Rev 6/95 4.7 Protective functions All the protective functions (excluding 4.7.6) activate internal inhibit. There are two modes of resetting the amplifier after the cause of the inhibit disappears: Self Restart and Latch. - Self restart: The amplifier is inhibited only for the period that the inhibit cause is present.
15 ISP - Rev 6/95 T4 10K 100 C1 .022MF 1000PF R5 475K 100K 4700PF T7 10K R1 INPUT 1 CURRENT COMMAND MONITOR. 15 1 2 3 R3 100K 5.11K .01MF 10K - 100K + - R6 100K 10K R7 100K 100PF + - C2 .01MF PWM TO POWER STAGE CONVERTER CURRNET FEEDBACK A 10K T3 IP CURRENT LIMITS T2 IC + R2 INPUT 2 10K .
16 ISP - Rev 6/95 U1 T2 T3 T4 COMP IP IC U5 T6 T7 GAIN 1 GAIN 2 T5 OFFSET R1 R2 U12 L1 L2 L3 IC INH VS L4 SO J1 12 13 14 1 2 3 4 5 6 7 8 9 10 11 U17 R3 R4 R5 R6 R7 R8 R9 U14 U15 R10 R11 R12 R13 R14 U7.
17 ISP - Rev 6/95 5. Terminal Description 5.1 Terminals for Horizontal and Rack mounting versions Power stage H R Function Remark AC 2ac,4c AC input All pins are shorted on the PCB. M1 8ac,10a Armature output This output will be negative when a positive signal is fed to one of the inputs.
18 ISP - Rev 6/95 Control stage - Cont. H R Function Remark 9 24a CCW disable Two modes - see chapter 7.1.1 * * * 10 24c Inhibit input Two modes - see chapter 7.1.1 * 11 22a Circuit common 12 22c +5V 100mA 13 20a -15V + 5%, 50mA external load. 14 20c +15V + 5%, 50mA external load.
19 ISP - Rev 6/95 TERMINALS OF ISP - PANEL VERSION AC M2 M1 AC 1 20.
20 ISP - Rev 6/95 5.2 Mother Board terminals The MBA-ISP/N is designed for 19" rack systems. It has screw type terminals for both power and signals with identical designations as in the panel versions except for the following new terminals: 21 Potential free Inhibit Input (+).
21 ISP - Rev 6/95 R1 22 21 18 17 16 AC1 M2 AC1 15 14 13 12 11 10 M1 AC2 AC2 VS VS 9 8 7 6 5 4 G G U1 3 2 1 MBA-ISP/N.
22 ISP - Rev 6/95 5.3 Terminals for ISP mounted in 3U size ENC. The MBA-ISP/3UE is designed for Elmo enclosures. It has screw type terminals for the power and D-type connectors for the signals. The Potential Free Inhibit Input is applicable only when the "inverted inhibit logic" is used (R18 in the amplifier is inserted).
23 ISP - Rev 6/95 Control connector - J1 Pin Function Remark 1 Input 2 For more details see 4.1. 2 Back EMF output See Appendix B. 3 Input 1 For more details see 4.1. 4 Negative differential input For more details see 4.1. 5 Positive differential input For more details see 4.
24 ISP - Rev 6/95 Control connector - J2 Pin Function Remark 1 Inhibit input Potential free inhibit input (-). See 7.1.1 * 2 Inhibit input Potential free inhibit input (+). See 7.1.1 * 3 Inhibit input Two modes - see chapter 7.1.1 * 4 CCW disable Two modes - see chapter 7.
25 ISP - Rev 6/95 R1 J1 FEMALE J2 MALE GND AC GND M1 M2 AC MBA - ISP/3UE 9 COM. 1 IN 2 BACK 2 3 4 IN 1 DIFF(-) EMF 10 11 12 COM. +15V -15V 13 14 15 +5V COM. RELAY 5 6 7 DIFF(+) CURRENT MONITOR CURRENT COMMAND 8 8 7 6 IN 2 RESET BACK EMF 15 14 COM. COM.
26 ISP - Rev 6/95 6. Installation procedures 6.1 Mounting The ISP series dissipates its heat by natural convection. For optimum dissipation the amplifier should be mounted with the fins vertical. 6.2 Wiring Proper wiring, grounding and shielding techniques are important in obtaining proper servo operation and performance.
27 ISP - Rev 6/95 6.3 Load inductance The total load inductance must be sufficient to keep the current ripple within the 50% limit (10-20% of rated current is recommended). The armature current ripple (Ir) can be calculated by using the following equation: 0.
28 ISP - Rev 6/95 6.5 Wiring diagrams Motor A B GND Chassis ISP M1 M2 Minimum acceptance ============================================================= Motor A B GND Chassis Power wires twisted togethe.
29 ISP - Rev 6/95 DC power common is internally connected to control common Heatsink Isolating transformer ISP +Vs Guide lines for connecting a non isolated amplifier with an isolating power transformer Ground: DC power common Motor chassis Amplifier's heat sink Do not ground: Control common - It is internally connected to the power common.
30 ISP - Rev 6/95 AC AC +Vs DC power common Control common Heatsink AC AC +Vs DC power common Control common Heatsink To additional ISPs CONNECTING MORE THAN ONE ISP SINGLE PHASE TRANSFORMER ISP ISP.
31 ISP - Rev 6/95 ISP CONTROL CONNECTIONS TACHOGENERATOR FEEDBACK Reset Motor command A -15V CW disable Twisted and shielded pair 1 3 + _ 4 14 13 +15V 12 +5V 7 Current monitor 10 5 11 2 8 Tacho 6 9 In.
32 ISP - Rev 6/95 ISP CONTROL CONNECTIONS ARMATURE VOLTAGE FEEDBACK Reset Motor command A -15V CW disable Twisted and shielded pair 1 3 + _ 4 14 13 +15V 12 +5V 7 Current monitor 10 5 11 2 8 6 9 Inhibi.
33 ISP - Rev 6/95 7. Start - Up Procedures All the operations of this chapter do not require power on the unit. The steps of paragraph 7.1 must be performed before proceeding to the appropriate feedback sensor section. 7.1 Common procedures for all amplifiers types 7.
34 ISP - Rev 6/95 b) Enable by High Inhibit/CW/CCW functions will be de-activated by connecting their inputs to a high level signal. If no signal is applied to these inputs the amplifier will be disabled upon power on. For this logic insert 3.6Kohm ( + 10%)resistors for R18 (Inhibit), R19a (CW), R20a (CCW).
35 ISP - Rev 6/95 OPTO-ISOLATED INHIBIT +5V ISP ENABLED BY ACTIVE LOW OR CLOSED CONTACT C R18 V +5 R1 MBA-ISP/... ISP CONTROL BOARD Inhibit +5V ISP ENABLED BY ACTIVE HIGH OR CLOSED CONTACT C R18 +5 R1 MBA-ISP/... ISP CONTROL BOARD Inhibit V R1 = 100 x V (ohm) V - Voltage at the inhibit input.
36 ISP - Rev 6/95 7.1.2 Velocity mode To operate in velocity mode the velocity loop should be enabled by converting the error amplifier to a high gain PI amplifier. Make sure that: R6 (30ohm), R5 (475Kohm) and C1 (0.022 æ F), in solderless terminals, are installed on the board.
37 ISP - Rev 6/95 7.1.4 Activating the loss of tacho protection (velocity mode only) Activating the loss of tacho protection is done by installing R14 (different value for 65V or 135V amplifiers),R15,.
38 ISP - Rev 6/95 7.1.5 Latch mode of the protective functions Self Restart(D17 removed): The amplifier is inhibited only for the period that the inhibit cause is present. Latch (D17 - inserted): Failures 4.7.1-5 latch the Inhibit and the diagnostic LED.
39 ISP - Rev 6/95 7.3 Velocity control using armature voltage feedback The reference signal should be connected to the differential input and R3,R4 should be calculated and inserted according to: R3 = R4 = 1.33xVdm (Kohm) Vdm - maximum reference voltage at the differential input.
40 ISP - Rev 6/95 8. Amplifier adjustment and diagnostics Important remarks: A. If all the previous steps were accomplished you may now turn on the power and continue with the following adjustments. You may omit the step for current mode or velocity mode according to your application.
41 ISP - Rev 6/95 Ic Current monitor scale (A/V) : ------ 3.75 8.3 Adjusting the motor speed (velocity mode only) Adjusting the speed is done by adjusting the input gain trimmer of the tacho feedback: - Increasing/decreasing the feedback gain will decrease/increase the speed.
42 ISP - Rev 6/95 8.5 Response adjustment (velocity mode only) In most applications optimum response is achieved by adjusting the compensation (COMP) trimmer. Adjustment procedure is as follows: - Provide the amplifier with a low frequency, bi-directional square wave velocity command (A 0.
43 ISP - Rev 6/95 - If the previous step does not yield satisfactory results, if unacceptable overshooting has been noted, substitute a larger value than 0.022æF; or, if the response is overdamped substitute a smaller value than 0.022æF. Repetition of this procedure should yield an optimum choice for C1.
44 ISP - Rev 6/95 9. Tables and Summaries 9.1 Adjusting trimmers Six trimmers are installed on the ISP board with the following functions: T7 (Gain 1) - CW rotation increases input 1 gain. T6 (Gain 2) - CW rotation increases input 2 gain. T5 (Balance) - see 8.
45 ISP - Rev 6/95 Appendix A - Response adjustment - current loop In most applications it is not necessary to adjust the current loop to achieve the optimum response. When there are extreme electrical parameters in the armature circuit (inductance and resistance) the standard components values of 0.
46 ISP - Rev 6/95 Reference input signal C2 too large / R7 too small Critically damped C2 too small / R7 too large Fig. A-1 Typical current response waveforms.
47 ISP - Rev 6/95 Appendix B - Current limits contour adjustment The amplifier can be configured to have either continuous current limit or peak current limit or both which depend on motor velocity feedback. This function is enabled by calculating and inserting R11, R13.
48 ISP - Rev 6/95 Continuous current limit contouring: 1 - r1 R11 = 18.3 -------- (Kohm) 1 - r2 R11 R10 = 36.6 ------------- (Kohm) R11 + 20r1 Peak current limit contouring: 1 - s1 R13 = 18.
49 ISP - Rev 6/95.
50 ISP - Rev 6/95 187 169 85 12.5 4.0 x 4 9 110 111.76 SP1 - TOP VIEW.
51 ISP - Rev 6/95 39 22.6 29.4 13.6 4.0 187 SP1 - SIDE VIEW 1.
52 ISP - Rev 6/95 111.76 12 39 5.2 1.6 5 9 SP1 - SIDE VIEW 2.
53 ISP - Rev 6/95 200 182 SEE DETAIL A 9.5 9 10 9.5 DETAIL A 5 25.5 109 70 111.76 SP2 - TOP VIEW.
54 ISP - Rev 6/95 55.6 62.4 13.6 GROUNDING SCREW M4 200 SP2 - SIDE VIEW 1 74.
55 ISP - Rev 6/95 111.76 5.2 12 1.6 M4 42 72 2 SP2 - SIDE VIEW 2.
56 ISP - Rev 6/95 187 169 85 12.5 4.0 x 4 9 110 111.76 SP3 - TOP VIEW.
57 ISP - Rev 6/95 39 22.6 29.4 13.6 4.0 187 SP3 - SIDE VIEW 1 58.
58 ISP - Rev 6/95 5 9 SP3 - SIDE VIEW 2 111.76 5.2 12 1.6 58.
59 ISP - Rev 6/95 200 182 70 SEE DETAIL A 9.5 25.5 9 10 9.5 DETAIL A 5 109 111.76 SP4 - TOP VIEW.
60 ISP - Rev 6/95 91 55.6 62.4 13.6 GROUNDING SCREW M4 200 SP4 - SIDE VIEW 1.
61 ISP - Rev 6/95 111.76 5.2 12 1.6 M4 42 91 2 SP4 - SIDE VIEW 2.
62 ISP - Rev 6/95 128.7 ISP RACK MOUNTING (8T and 15T) - TOP VIEW 160 162.54 110 J1 111.76.
63 ISP - Rev 6/95 ISP RACK MOUNTING (3U/8T) - SIDE VIEW 1 2 x M3 40.64 39 29.4 22.6 13.6 162.54 188.
64 ISP - Rev 6/95 ISP RACK MOUNTING (3U/8T) - SIDE VIEW 2 111.76 128.7 1.6 8 5.2 12 38.
65 ISP - Rev 6/95 + SO IC IN VS COMP. GN1 GN2 BAL. IP IC + FRONT PANEL FOR ISP 3U/8T.
66 ISP - Rev 6/95 ISP RACK MOUNTING (3U/15T) -SIDE VIEW 1 4 x M3 70 60.4 53.6 13.6 76.2 160 188.
67 ISP - Rev 6/95 ISP RACK MOUNTING (3U/15T) - SIDE VIEW 2 128.7 111.76 1.6 5.2 12 70 76.2 40 109.
68 ISP - Rev 6/95 FRONT PANEL FOR ISP 3U/15T + SO IC IN GN1 GN2 BAL. VS IP IC COMP..
69 ISP - Rev 6/95 ISP RACK MOUNTING (3U/12T and 3U/19T) - TOP VIEW 2.5 15 160 165 J1 109 111.76.
70 ISP - Rev 6/95 4 x M3 ISP RACK MOUNTING (3U/12T) -SIDE VIEW 1 60.96 28.4 59 21.6 13.6 162.45 188.
71 ISP - Rev 6/95 ISP RACK MOUNTING ( 3U/12T) - SIDE VIEW 2 128.7 111.76 12 59 60.96 5.2 1.6 8 109.
72 ISP - Rev 6/95 FRONT PANEL FOR ISP 3U/12T SO IC IN VS GN1 GN2 BAL. COMP. IP IC.
73 ISP - Rev 6/95 4 x M3 ISP RACK MOUNTING (3U/19T) -SIDE VIEW 1 96.52 60.4 89 53.6 13.6 160 188.
74 ISP - Rev 6/95 ISP RACK MOUNTING ( 3U/19T) - SIDE VIEW 2 128.7 111.76 12 89 96.52 5.2 1.6 40 109.
75 ISP - Rev 6/95 FRONT PANEL FOR ISP 3U/19T SO IC IN VS GN1 GN2 BAL. COMP. IP IC.
76 ISP - Rev 6/95 SIDE VIEW FRONT VIEW ENCLOSURE MECHANICAL OU TLINE 11 11 10 5 74.2 132.5 240 251.7 222 45.0 20 5 11 11 X POWER 7.5 NOTE: ALL DIMENSIONS ARE IN mm. X 102.7 12T 20T 16T 62.0 82.3 24T 36T 123.0 184.0 Standard Sizes For non-standard sizes: X = 5.
77 ISP - Rev 6/95 List of ELMO Service Centers ISRAEL Elmo Motion Control LTD 34 Segula ST. Petah-Tikva 49103 Tel: (03)934-5059 Fax: (03)934-5126 EUROPE Elmo Motion Control 7 Stanserstrasse CH-6362 Stansstad Switzerland Tel: (041)610775 Fax: (041)610778 U.
An important point after buying a device Elmo ISP (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Elmo ISP yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Elmo ISP - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Elmo ISP you will learn all the available features of the product, as well as information on its operation. The information that you get Elmo ISP will certainly help you make a decision on the purchase.
If you already are a holder of Elmo ISP, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Elmo ISP.
However, one of the most important roles played by the user manual is to help in solving problems with Elmo ISP. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Elmo ISP along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
