Industrial Controls Division SPECIFICATIONS Inputs Outputs 4 per Channel. Each input may be attached to either an inverting or non-inverting op-amp input. Amplifier outputs at terminals 5, 10, 15, and 21. Signal levels to ±10 VDC nominal. Input Impedance: Two inputs have fixed input resistors (100 kΩ supplied); two inputs each have a fixed resistor (51.1 kΩ supplied) plus a 20-turn, 100 kΩ potentiometer. Signal levels: ±100 to ±100 VDC, depending on configuration. NF123-158B1 Series Auxiliary Amplifier Card Temperature Range: 10°C to 50°C (50°F to 120°F) Connector: DIN 41612 style C Form Factor: Eurocard 100 x 160 mm, 7 HP, 3 U Weight: 0.38 lb (0.17 kg) The NF123-158B1 Auxiliary Amplifier circuit card is designed to easily accommodate the special needs of unique control systems.The flexibility of this card provides the Control Engineer with a tool to design custom circuits not available in standard cards.Typical applications include buffers, summing amplifiers, differential amplifiers, oscillators, compensators, current-to-voltage converters, and dither generators. The NF123-158B1 Auxiliary Amplifier Card is a forward compatible replacement for the F123-158-A001. FEATURES Flexible Configuration Options: Each channel may be configured for any standard op-amp circuit: inverting amplifier, non-inverting amplifier, differential amplifier, inverting summing amplifier with up to 4 inputs, non-inverting summing amplifier with up to 4 inputs, current-to-voltage converter, differentiator, integrator, compensation, oscillator, etc. Configuration of the printed-circuit board traces is accomplished through simple jumpers. Four Independent Channels: May be configured identically for multi-channel operations or uniquely for cascaded operations. Front-Panel Test Points: Allow fast access to outputs of each channel. Front-Panel Adjustments (Four per channel): Provide quick access to gains, scales, and biases. Allow precise adjustments with 20-turn potentiometers. ADJUSTMENTS Because each card is uniquely configured, it is difficult to give precise adjustment instructions. Usually, for channel 1 (V OUT5), P1 and P2 change the scaling of inputs at terminals 1 & 2; P3 changes the gain; and P4 changes the bias. P5 through P8 control the corresponding functions of channel 2 (V OUT 10). P9 through P12 control the corresponding functions of channel 3 (V OUT 15). P13 through P16 control the corresponding functions of channel 4 (V OUT 21). Set-up instructions are now available for several specific configurations including: Conversion to dither generator (25 – 300 Hz). Converting 4 to 20 mA input ➧ 0 to +10 V output. Converting 4 to 20 mA input ➧ -10 to +10 V output. Converting ±1 VDC input ➧ ±10 VDC output (non-inverting). Converting 4 to 20 mA input ➧ 0 to -10 V output. NF123-158B1 AUXILIARY AMPLIFIER CARD SCHEMATIC S3 R4 CW S2 51.1K 1 P1 100K S1 S4 CW 100K P3 CW 100K S7 C1 S8 100pF 2 10K Z3 51.1K S5 7 3 3 100K R5 100K S10 S11 R1 1 -15V R9 NF R7 NF S12 100 Ω R1 _ V1 741 + 100Ω Rg R8 NF R 1 = R f = UNITY GAIN -15V S15 R15 CW P5 100K 51.1K S13 S16 100K CW P7 100K S19 51.1K S17 100pF +15V 2 7 6 A2 5 4 3 1 -15V S20 Z5 S21 R13 8 100K R16 100K S22 S23 R12 VOUT = P8 100K V OUT10 R22 Inverting Summing Amplifier 10 100 Ω Rf R1 V1 Channel 2 R2 S24 V2 R19 NF 100pF -15V S27 R26 CW 51.1K P9 100K S25 S28 CW 100K CW P11 100K S31 C3 51.1K S32 100pF 2 S29 A3 S33 R24 3 13 100K R27 100K S34 S35 R23 4 1 6 15 5 -15V CW P13 100K CW S37 S42 S40 S41 R39 GAIN S43 C4 S44 100pF 2 R35 7 1 S46 100K S47 R38 100K 4 S48 100pF 100 Ω R1 _ V1 -15V R42 NF R40 NF Rf +15V 21 5 19 R2 V2 741 100Ω + V OUT Channel 4 Rg R41 NF R45 R46 NF NF 23 25 28 22 R 1 • R 2 • R 3 •R f R1 R 2 R 3 + R1 R 2 R f + R1 R 3 R f + R2 R 3 R f Differential Amplifier R44 6 A4 3 18 100K = V 1 V 2 V3 + + R1 R 2 R 3 V OUT21 +15V Z11 -15V CW P16 100K 10K Z12 S45 R34 set R g R43 100K R36 BIAS 100K CW P15 Z10 51.1K 17 P14 100K S39 51.1K 16 VOUT = - R f R30 NF R37 S38 100 Ω Channel 3 S36 VOUT Rg R31 NF R29 NF 100Ω R33 14 100K 741 + V OUT15 7 _ V3 +15V +15V Z8 R3 R32 10K Z9 CW P12 100K S30 12 P10 100K GAIN Z7 R25 BIAS R28 S26 11 -R f V R1 1 set R g = R1* R f R 1+R f +15V R20 NF R18 NF 9 100K CW R21 10K Z6 C2 BIAS S18 7 P6 100K GAIN Z4 R14 CW R17 S14 6 VOUT Channel 1 4 100K 100 pf 5 5 4 +15V R11 6 A1 S9 Rf P4 100K V OUT5 +15V Z2 R2 Buffer Amplifier–Inverting -15V CW R10 S6 2 P2 100K GAIN Z1 R3 BIAS R6 TYPICAL APPLICATIONS +15V (40 mA typical) C5 10 µF 30 C6 10 µF SIGNAL GROUND Power Inputs Low-Pass Filter C7 NF C8 NF -15V (40 mA typical) An ‘Extender Card’ is highly recommended to gain access to ‘Test Points’ and ‘Adjustments’ while cards are powered-up within a Eurocard Rack Assembly. (Moog ref P/N A81750-1) VOUT = Rf V __ V1 R1 2 for R f = R g and R 1 = R 2 NOTES: 1. NF – NOT FURNISHED 2. ■ – PIN 1 (SQUARE PAD ON PCB) 3. CW – CLOCKWISE 4. O – INDICATES COMPONENT STANDOFF DIFFERENTIATOR INTEGRATOR C1 R1 C1 R1 VI VI VO VO ∆VI VO = –R1C1 ∆t VOUT= – fc = BASIC NONINVERTING AMPLIFIER CIRCUIT ∫ 1 t2 VINdt R1C1 t1 1 2πR1C1 VOLTAGE FOLLOWER VI VO VI VO R2 R1 VO = [ 1+ R2 R1 ] (V1) DIFFERENTIATOR WITH HIGH FREQUENCY NOISE CORRECTION HIGH-PASS AND LOW-PASS FILTER CIRCUITS C1 R1 VI R1 R2 VO VI RS C1 VO C2 1 fO = 2π C2 R1R2 1 fC1 = 2πR1C1 (a) LOW-PASS FILTER R2 C1 C2 OFFSET VOLTAGE ADJUSTMENT FOR VOLTAGE FOLLOWERS VI VO R1 +V 1 fO = 2π R2 C1C2 (b) HIGH-PASS FILTER R2 100K R1 2M R3 1K -V OUTPUT INPUT RANGE = ±V ( ) R3 R1 SET-UP INSTRUCTIONS 1. Converting Channel-1 & 2 ⇒ Dither Generator w/Dither Freq ≈ 25 to 300Hz • Adjustable Dither Frequency (Sq Wave) and Amplitude • Select Ch1 and Ch2 for circuit configuration • Refer to Schematic Diagram – Figure ‘A’ • A1 of Ch1 is NOT used (Remove from circuit) • A2 of Ch2 is configured as a Free-Running Astable Multivibrator Circuit or Square Wave Generator • Dither Frequency ⇒ fDITHER = 1/t1 = 1 / 2 [C1 x (P7 + R21)] • Channel-1: • Remove R1 (100K) & replace with C2, 1mf, 35 VDC capacitor • Install jumper Z1 • Insert jumper S3, S5, S7 & S12 Only • Ensure jumpers S1, S2, S4, S6, S8, S9 to S11 are NOT connected • Remove R5 (100K) Resistor • Remove R10 (10K) Resistor • Remove R6 (100K) Resistor • Remove R11 (100Ω) Resistor • Jumper Pin-1 to Pin-5 of Ch1 • Connect jumper S4/Ch1 to Pin-2/Ch1 • Connect Pin-4/Ch1 to Pin-10/Ch2 • Set pot P1 of Ch1 to full CW position (Zero) • Channel-2: • Insert jumpers S22 & S23 • Ensure jumpers S13 to S21 and S24 are NOT connected • Remove R13 (100K) & replace with 49.9K, 1% resistor • Remove R12 (100K) & replace with C1, 0.33mf, 35 VDC capacitor • Remove R17 (100K) resistor • Remove R22 (100Ω) resistor & replace with ‘jumper’ • Remove R21 (10K) & replace with 8.2K, l% resistor • Remove R16 (100K) & replace with 20K, 1% resistor • Connect Pin-10/Ch2 to Pin-8/Ch2 and Pin-9/Ch2 to Pin-22/Sig Gnd • Monitor output voltage & frequency at Pin-5/Ch1 (Frequency should range from 25 to 300Hz by adjusting pot P7) • Check circuit & repeat set-up instructions if I/O conditions are NOT achieved Channel 1 Set P1 full CW ⇒ 0 S2 Z1 S3 (Dither On/Off) Vout-5 Pin-1 CW P1 S6 R3 Vo S7 Pin-5 Pin-2 CW f = 25 to 300 Hz P2 S5 DITH AMPL Signal Gnd C2 S12 S4 All Resistors 1% Tol R3 = 301K P1, P2 = 100K pots C2 = 1mf/35 VDC Rmv A1, R5, R6, R10, 11 Pin-4 Channel 2 Jumper C1 = 0.33mf/35 VDC R13 = 49.9K R21 = 8.2K Remove R22 (100Ω) P7 = 100K Pot R16 = 20K P7 DITH FREQ CW R21 Pin-9 C1 Vout-10 S23 R22 – Pin-10 A2 + Pin-8 R13 S22 Jumper R16 All Resistors are 1% Tol Pin-22 Sig Gnd Power Inputs Fig. A – Model NF123-158B1; Converting Channel 1 &2 ⇒ Dither Generator w/Adj Sq Wave Freq = 25 to 300 Hz SET-UP INSTRUCTIONS 1. Converting 4 to 20mA Input Command Signal ⇒ 0 to +10 VDC Output Signal • Select Ch1 and Ch2 for circuit configuration • Refer to Schematic Diagram – Figure ‘A’ • A1 of Ch1 is configured as a Differential Amplifier with a Gain of 2X • A2 of Ch2 is configured as an Inverting Amplifier with Zero Bias (offset) and Span (Gain) Adjust • Channel-1: • Remove R6(100K) Resistor • Install jumper Z3 • Insert jumper S9 & S12 Only • Ensure jumpers S3, 4 and S7, 8 are NOT connected • Remove R5 (100K) & replace with 200K, l% resistor • Remove R10 (10K) & replace with 200K, 1% resistor • Jumper Pin-5/Ch1 to Pin-8/Ch2 • Install 250Ω, 1% resistor across Pins-3 and Pin-4 of Ch1 Input • Channel-2: • Install jumper S21 • Ensure jumpers S15, 16 & S19, 20 & S23, 24 are NOT connected • Remove R16 (I00K) & replace with1K, 1% resistor • Apply a 4 to 20mA Input Signal to Pins 3 & 4 • Measured voltage across Pins 3 & 4 should range from 1 VDC to 5 VDC (Voltage drop across 250Ω input resistor) • Monitor output voltage at A1/Pin-6 (Voltage should range from 2 VDC to 10 VDC) • Set Current Driver input signal to +4mA • Adjust BIAS (Zero Offset) pot (P8) to obtain 0 VDC at Test Point ‘Vout-10’ • Set Current Driver input signal to +20mA • Adjust GAIN (Span) pot (P7) to obtain +10 VDC at Test Point ‘Vout-10’ • Verify output voltage at Test Point ‘Vout-10’ is +10V • Ensure Span output (A2) does not enter saturation • Span & Zero interaction is Normal. Multiple iterations may be required. Continue to repeat adjustment until both are within specification (0 to +10V) without further adjustment. • Adjust Input Command from 4 to 20mA • Verify voltage range at Pin-10 is 0 to +10V as Current Input varies from 4 to 20mA • Check circuit & repeat set-up instructions if I/O conditions are NOT achieved Channel 1 Z3 R10 Command Signal 4-20mA Vout-5 S9 3 R2 I 250Ω 4 Pin-5 R11 – A2 + S12 R1 R5 +1 to +5 VDC +2 to +10 VDC Channel 2 P8 BIAS Jumper CW -15V +15V P7 GAIN CW R17 Pin-8 R13 R21 S21 R22 – R1, R2, R13, R17 = 100K R10, R5 = 200K R11, R22 = 100Ω P7, P8 = 100K Pots R16 = 1K R21 = 10K Vout-10 Pin-10 0 to +10 VDC Output A2 + R16 All Resistors are 1% Tolerance Fig. A – Model NF123-158B1; Converting 4 to 20 mA Input Command Signal ⇒ 0 to +10 VDC Output Signal Industrial Controls Division 2. Converting 4 to 20mA Input Command Signal ⇒ -10 to +10 VDC Output Signal (±10V) • Requires selection of all 4-Channels for circuit configuration • Refer to Schematic Diagram – Figure ‘B’ • A1 of Ch1 is configured as an Inverting Unity-Gain Amp • A2 of Ch2 is NOT used • A3 of Ch3 is configured as a Differential Amp with a Gain of 1X • A4 of Ch4 is configured as a Summer Amp with BIAS Adjust & fixed Gain of -5X • Low-Pass Filter Section is re-configured as a +10 VDC Reference Supply • Channel-1: • Install jumper Z3 • Insert jumper S9 ONLY • Ensure jumpers S1 to S8 and S10 to S12 are NOT installed • Remove RI0 (10K) & replace with 100K, 1% resistor • Remove R12 (100K) & replace with 2K, 1% resistor • Remove R5 (100K) & replace with 50K, 1% resistor • Jumper Pin-5 of Ch1 to Pin-4 of Ch1 • Connect ‘center’ pin of jumper S11, 12 to Pin-6 of Ch2 • I/O conditions: • Ch1/Pin-3 ⇒ +I0 VDC Input • Ch1/Pin-5 ⇒ -10 VDC Output • Ch1/Pin-4 ⇒ -10 VDC Input • Channel-2: • Install jumper Z4 • Insert jumper S16 & S24 ONLY • Ensure jumpers S13 to S15 & S17 to S23 are NOT installed • Remove resistor R12 & R13 & replace with 2k, 1% • Connect ‘center’ pin of jumper S13, 14 to ‘center’ pin of S21,22 • Connect Pin-8/Ch2 to Pin-28 ⇒ Power Supply Input Section • I/O conditions: • Ch2/Pin-6 ⇒ -10 VDC Input • Ch2/Pin-8 ⇒ +15 VDC Power Input • Ch2/Pin-9 ⇒ -3 VDC Bias Voltage Setting • Channel-3: • Install jumper Z9 • Insert jumper S33 & S36 ONLY • Ensure jumpers S25 to S32 & S34, 35 are NOT installed • Remove resistor R23, R24, R27 & R28 (100K) and R32 (10K) • Replace resistor R23, R24, R27 and R32 with 200K, 1% • Remove R28 (100K) resistor • Install 250Ω, 1% precision resistor across Pin-13 and Pin-14 of Ch3 Input • Connect Pin-15/Ch3 to Pin-18/Ch4 ⇒ A4 – Output Gain Stage • I/O conditions: • Ch3/Pin-13, 14 ⇒ +1 VDC @ 4mA to +5 VDC @ 20mA (250Ω load) • Ch3/Pin-15 ⇒ +I to +5 VDC Voltage Swing • Channel-4: • Install jumper Z12 • Insert jumper S45 ONLY • Ensure jumpers S37 to S44 and S46 to S48 are NOT installed • Remove resistor R35, R38, R39 (100K) and R43 (10K) • Replace resistors R35 with 2K; R38 with 5K and R43 with 10K (1% toll) • Connect Pin-9/Ch2 to R39 (Pin-2) of Ch4 • I/O conditions: • Ch4/Pin-18 ⇒ +1 to +5 VDC Input Range • Ch4/Pin-21 ⇒ ±10 VDC Output • Low-Pass Filter Section: • Install jumper across R45 (NF = Not Furnished) • Replace resistor R46 (NF) with 27.4K, 1% • Replace capacitor C7 (NF) with a 10.0V Zener Diode – LM4040 type or equivalent (Anode to Gnd) – Label as DZ1 designation • Connect Pin-25 (Low-Pass Filter Section) to Pin-28 (Power Input Section) • Connect Pin-23 (Low-Pass Filter Section) to Pin-3 (Ch1) • I/O conditions: Low Pass Filter Section • Pin-23 ⇒ +10 VDC Ref Output • Pin-25 ⇒ +15 VDC Power Input • Check circuit & repeat set-up instructions if I/O conditions are NOT achieved Z3 R10 Channel 1 +10 VDC Ref Vout-5 S9 R2 3 R5 S11 -10 VDC Output Jumper R1 4 Pin-5 R11 – A1 + S12 Z4 Channel 2 S16 R11 = 100Ω R2, R10 = 100K R13, R12 = 2K P5 = 100K DZ1 = 10.0V Zener Diode R46 = 27.4K R5 = 50K All resistors are 1% Tolerance -3V Bias P5 BIAS S14 S21 S13 S22 Pin-6 Pin-8 CW Pin-9 R13 R12 S24 SUMMER Ch4/R39 +10 VDC Ref 1 R45 (Jumper) 23 R46 2 25 +15 VDC 1 28 DZ1 10V (Replace C7 with DZ1) +15V C5 Signal Gnd 22 30 C6 -15V Power Inputs Low-Pass Filter/Ref Supply Fig. B – Model NF123-158B1; Converting 4 to 20 mA Input Command Signal ⇒ -10 to +10 VDC Output Signal (±10 VDC) Channel 3 Remove Z9 R28 R32 Command Signal 4-20mA Vout-15 S33 13 R24 I 250Ω 14 Pin-15 R33 – A3 + S36 R23 R27 +1 to +5 VDC Voltage Swing Channel 4 R39 (Remove) 1 2 From BIAS Pot Ch2/Pin-9 Z12 Pin-18 R35 Jumper R23, R24, R32, R27 = 200K R43 = 10K R33, R44 = 100Ω P7, P8 = 100K Pots R38 = 5K R35 = 2K R43 Vout-21 S45 R44 – Pin-21 ±10 VDC Output A4 + A4-GAIN = -5X R38 All Resistors are 1% Tolerance Fig. B – Model NF123-158B1; Converting 4 to 20 mA Input Command Signal ⇒ -10 to +10 VDC Output Signal (±10 VDC) Industrial Controls Division SET-UP INSTRUCTIONS Converting Channel-1 & 2 ⇒ 4 to 20mA Input Command = 0 to -10 VDC Output Signal 1. Select Ch1 and Ch2 for circuit configuration 2. Refer to Schematic Diagram – Figure ‘C’ 3. Install jumpers between Pin-5 (Ch1) & Pin-6 (Ch2) and Pin-15 (Ch3) & Pin-16 (Ch4) for proper operation 4. Refer to diagram for component installation/values including jumper locations 5. Channel-1: Connect current source to Input Pins 4 (+) & 3 (-) • Set Current to 0.0mA • Monitor voltage at Vout-5 • Adjust P4 for 0 VDC 6. Set current Input to +20.0mA • Adjust P3 for +10.0 VDC at Vout-5 • Set Current to +4.0mA • Verify +2.0 VDC at Vout-5 7. Channel-2:Adjust P5 fully ‘CW’ and P7 fully ‘CCW’ • Set Current to +4.0mA • Adjust P8 for 0.0 VDC at Vout-10 8. Set current to +20mA • Adjust P7 for -10.0 VDC at Vout-10 • Verify 0.0 VDC at +4.0mA Input 9. Check circuit & repeat set-up instructions if I/O conditions are NOT achieved Pin-4 (+) GAIN +15V Channel 1 Command Signal 4-20mA R1 P4 BIAS S11 I R2 R10 CW CW -15V Z3 – A1 R11 + Pin-5 Z3 = 30K Vout-5 R1, R2 = 10K R5 = 20K P3, 4 = 100K R6 = 500K R10 = 1K R11 = 100Ω All Resistors are 1% Tolerance 250Ω Pin-3 (-) P3 R6 S10 R5 Channel 2 CW P8 BIAS Jumper -15V +15V P7 GAIN R21 CW S14 R17 CW Pin-6 P5 Vout-10 S15 Pin-10 R22 – 0 to -10 VDC Output A2 R15 + Ch3 & Ch4 Pin-15 P7, 8 = 100K R15 = 51.1K R21 = 1K R22 = 100Ω R16, 17 = 100K All Resistors are 1% Tolerance R16 Pin-16 Fig. C – Model NF123-158B1; Converting 4 to 20 mA Input Command Signal ⇒ 0 to -10 VDC Output Signal SET-UP INSTRUCTIONS: INVERTING AMP TO NON-INVERTING AMP Converting ±1 VDC Input Command Signal ⇒ ±10 VDC Output (Non-Inverting) Signal • Select Ch1 for circuit configuration • Refer to Schematic Diagram • A1 of Ch1 is configured as a Non-Inverting Amplifier with a Gain of 1X to 21X • Channel-1: • Insert jumper Z1, S1, S3 & S10 Only • Ensure jumpers S2, S4, S5 thru S9, S11, S12 & Z2, 3 are NOT connected • Remove R2 (100K) resistor & replace with jumper • Remove R5 (100K) resistor from circuit • Remove R10 (10K) resistor & replace with jumper • Set P1 potentiometer to 5K • Connect Pin-15/NF122-202A1 to Pin-3/Ch1 • Connect Pin-22 (Gnd)/NF122-202A1 to ‘Gnd’ side of R5 resistor (Pin-2) • DO NOT use Pin-1/Ch1 of the NF123-158B1 • Apply a ±1 VDC Input Signal across Pin-3 to Ground (Pin-22) • Measured voltage across Pin 3 to Ground (Pin-22) should range from ±1 VDC to -1 VDC (Input Signal from NF122-202A1 Card) • Monitor output voltage at Pin-5/Ch1 • Gain = eo /ein = (1 + P3/P1) ⇒ Non-Inverting Amplifier Configuration • Calculated Gain Range = 1 min to 21 max • With ±1 VDC Input Signal @ Pin-3/Ch1, adjust P3 (GAIN) pot for ±10 VDC Output (Non-Inverting) @ Pin-5/Ch1.Verify. • Check circuit & repeat set-up instructions if I/O conditions are NOT achieved Channel 1 S2 Z1 Do Not Use Pin-1 Input Pin-1 CW P1 S1 Pin-15 of NF122-202A1 15 Pin-3 S10 R2 GAIN +15V P4 BIAS R6 CW -15V Signal Gnd 22 R10 CW Z3 S3 Jumper ±1 VDC P3 Note: Set P1 pot to 5K (CCW) Remove – A1 R11 + Pin-5 P1, 3 = 100K pot Vout-5 R2 = Jumper R5, 6 = Remove R5 Z1 = Install Jumper R6 = Remove R10 = Jumper R11 = 100Ω All Resistors are 1% Tolerance ±10 VDC Output Fig. D – Model NF123-158B1; Converting ±1 VDC Input Command Signal ⇒ ±10 VDC Output (Non-Inverting) Signal Industrial Controls Division Moog Inc., East Aurora, NY 14052-0018 Telephone: 716/655-3000 Fax: 716/655-1803 Toll Free: 1-800-272-MOOG CDL6179 Rev C 500-204 898