Page 2 - ELMO-WARRANTY PERFORMANCE; overloading, wrong operation, unauthorized manipulations etc.; shipment by the manufacturing plant.; Units repaired under warranty have to be treated as an entity.
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. Specifically excluded from warranty is the eliminati...
Page 4 - TABLE OF CONTENTS; Dynamic contouring of continuous and peak current limits 12
4 ISP - Rev 6/95 TABLE OF CONTENTS 1. Description ................................ ........................ 6 2. Type Designation ................................ ................... 7 3. Technical specifications ................................ ........... 7 4. Operation of the servo control .........
Page 5 - Activating the dynamic contouring of the current limits 38
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 7.2 Velocity control usi...
Page 6 - Standard features; * Adjustable continuous and peak current limits.; Protective functions:
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...
Page 7 - Technical specifications
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. Technical specifications Type A...
Page 8 - Operation of the servo control
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 ...
Page 10 - Velocity control using armature voltage feedback; bandwidth. In this mode, R6 and C1 have to be removed from the circuit.
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 = (V1Gv1 + V2Gv2) x [ --------------------------- ] 1 + SxC1xR5(1 + RfxKi/R5) V1,V2, - Input signals Gv1,Gv2 - Gain of inputs. Ki = Position fa...
Page 12 - Dynamic contouring of continuous and peak current limits; operating envelope defined by the motor manufacturer.; Velocity; Typical operating envelope of a brush servo motor
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. What is t...
Page 13 - Operation of the shunt regulator; the AC incoming voltage.; SHUNT specifications; Type
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. The funct...
Page 14 - Protective functions
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 t...
Page 19 - TERMINALS OF ISP - PANEL VERSION
19 ISP - Rev 6/95 TERMINALS OF ISP - PANEL VERSION AC M2 M1 AC 1 20
Page 20 - Mother Board terminals; except for the following new terminals:
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 (+). See 7.1.1. 22 Pote...
Page 22 - Terminals for ISP mounted in 3U size ENC.
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...
Page 26 - Installation procedures
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 ope...
Page 28 - Minimum acceptance
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 together ISP M1 M2 Acceptable for most applications =======================================================...
Page 29 - DC power common
29 ISP - Rev 6/95 DC power common is internallyconnected 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 ...
Page 33 - Common procedures for all amplifiers types; Select the desired Inhibit and CW/CCW logic you need:; ISP DISABLED BY ACTIVE LOW OR CLOSED CONTACT
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 7.1.1 Inhibit and CW/CCW logic Sel...
Page 34 - disabled upon power on.; ISP ENABLED BY ACTIVE HIGH OR CLOSED CONTACT
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...
Page 35 - OPTO-ISOLATED INHIBIT
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. Standa...
Page 39 - Velocity control using armature voltage feedback; IxR compensation
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. The armature voltag...
Page 40 - Amplifier adjustment and diagnostics; or velocity mode according to your application.; Balance adjustment
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. B. In some app...
Page 41 - Ic; Adjustment of the IxR compensation; If you do not use this feature, skip this chapter.
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. It is also possible to ...
Page 43 - Typical velocity response waveforms
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 fo...
Page 45 - Appendix A - Response adjustment - current loop
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....
Page 46 - Typical current response waveforms
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
Page 47 - Appendix B - Current limits contour adjustment; enabled by calculating and inserting R11, R13.; Tc - Max continuous torque up to velocity N1
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. The continuous current limit...
Page 48 - Dynamic contouring with armature voltage feedback
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 = 18.3 -------- (Kohm) 1 - s2 R13 R12 = 36.6 ------------ (Kohm) R13 + 20s1 Dynamic contouring with armature voltag...
Page 65 - FRONT PANEL FOR ISP 3U/8T
65 ISP - Rev 6/95 + SOIC IN VS COMP. GN1 GN2 BAL. IP IC + FRONT PANEL FOR ISP 3U/8T
Page 68 - FRONT PANEL FOR ISP 3U/15T
68 ISP - Rev 6/95 FRONT PANEL FOR ISP 3U/15T + SO IC IN GN1 GN2 BAL. VS IP IC COMP.
Page 72 - FRONT PANEL FOR ISP 3U/12T
72 ISP - Rev 6/95 FRONT PANEL FOR ISP 3U/12T SO IC INVS GN1 GN2 BAL. COMP. IP IC
Page 75 - FRONT PANEL FOR ISP 3U/19T
75 ISP - Rev 6/95 FRONT PANEL FOR ISP 3U/19T SO IC IN VS GN1 GN2 BAL. COMP. IP IC
Page 76 - ENCLOSURE MECHANICAL OUTLINE; ALL DIMENSIONS ARE IN mm.
76 ISP - Rev 6/95 SIDE VIEW FRONT VIEW ENCLOSURE MECHANICAL OUTLINE 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 = 5.08 x n + 1mm
Page 77 - List of ELMO Service Centers
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.S.A Elmo Motion Control INC. 1200 Woodruff R...