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Enerpro Document No: OP-0106, Rev. B

Page 11 of 14

ECO #19-11089; Release Date: 08/02/2019

FCRO4100

FIRING BOARD

-X1F

DELAY

COMMAND

SOFT

INHIBIT

INSTANT

INHIBIT

off

VAC

com

+12

Figure 9. 8-Thyristor Two Bridge Rectifiers

-X2F

POLARITY

COMMA

reverse

forward

5 P

-X1F

LOAD

-X2F

-X1R

-X2R

FCOAUX60 AUXILIARY

FIRING BOARD

-X2R

-X1R

• Cut trace as indicat

ed by note 13 on E168

Figure 10. 8-Thyristor Two Bridge Rectifiers

FCRO4100

FIRING BOARD

+X1

-X1

DELAY

COMMAND

SOFT

INHIBIT

INSTANT

INHIBIT

VAC

com

+12

Figure 8. 4-Thyristor Center Tapped Transformer

+X2

-X2

POLARITY

COMMAND

rse

rwa

• Cut tr

ace as

indicat

ed by note 13 on E168

-X1

+X1

LOAD

Transformer

+X2

-X2

Figure 11. 4-Thyristor Center Tapped Transformer

Содержание FCRO4100

Страница 1: ...ader J2 provides the connections for the X2 SCR load connected cathode at positions 1 and 2 and for the X2 SCR line connected cathode at positions 4 and 5 The board mounted 24 VA power supply transformer T1 is normally energized by connecting the mains voltage at J3 The gate firing signals are locked to the mains waveform through the power control transformer hence the board power must be in phase...

Страница 2: ...fic application Note that the maximum effective full scale delay angle command range is limited to approximately 10 α 170 With the FCRO4100 board connected to the SCRs set the SIG HI command to its minimum value above 0 5 Vdc if the low signal inhibit circuit is connected via D6 Enable firing and observe that the inhibit LED PD1 extinguishes Adjust the BIAS potentiometer R6 to achieve the desired ...

Страница 3: ...ional regulation circuit for ac current feedback as supplied by a current transformer Burden resistor R4 connected to the output of bridge rectifier BR1 is selected to provide 1 0 Vdc at the desired full load current or voltage The VRCL1P 1 regulator board sold separately extends the FCRO4100 s functionality by providing voltage regulation with an adjustable current limit from CT derived current f...

Страница 4: ...trolled oscillator VCO output signal which operates at 256 times the line frequency The gate logic signals are amplified by a Darlington transistor array which excites the primary windings of two isolated pulse transformers The primary winding of each pulse transformer is also connected to a current limiting resistor and a speed up capacitor this provides an initial hard firing gate pulse followed...

Страница 5: ...ippers 12 1 Ensure that the mains are not energized Wire plug P3 with the mains voltage connected to the appropriate pins With an EP1031 power control transformer installed connect between pins 5 and 3 for 120 V mains or pins 5 and 1 for 240 V mains With an EP1032 power control transformer connect between pins 5 and 3 for 240 V mains or pins 5 and 1 for 480 V mains Note that the control power sour...

Страница 6: ...this document 12 8 Observe the voltage at TP7 to verify that the PLL is in lock The TP7 voltage should be 5V centered at 5 Vdc with a variable amount of ripple dependent on the SIG HI signal The TP7 ripple will be at its minimum value at the minimum and maximum SIG HI voltages as in Figures 4 and 5 respectively The TP7 ripple will be at its maximum value when the delay angle command is near α 90 a...

Страница 7: ...Enerpro Document No OP 0106 Rev B Page 7 of 14 ECO 19 11089 Release Date 08 02 2019 Figure 6 VCO control voltage and phase detector waveform SIG HI 2 75 Vdc Channel 1 TP6 Channel 2 TP7 ...

Страница 8: ...cy f 1 5 Hz For 50Hz operation compensate by removing R13 Jumper J8 for 50 60 selectable operation 7 Lock acquisition time Approximately 30ms Gating is inhibited for 20ms or longer at power on Inhibit period depends on Soft Start time constant 8 Soft Start Gating commences at max and exponentially decays to the commanded delay when NOT I2 is ungrounded J4 12 Soft Start time constant is set by C2 a...

Страница 9: ...f the FCRO4100 firing board If additional information is required please contact the Enerpro applications department Figure 7 2 Thyristor In Line AC Controller FCRO4100 FIRING BOARD 1 2 J2 4 5 1 2 J1 5 6 1 3 J3 5 X1 X1 DELAY COMMAND SOFT INHIBIT INSTANT INHIBIT J4 7 10 8 12 11 4 6 1 2 on off on off 24 VAC 5 com com 12 I2 I1 g k Figure 5 2 Thyristor In Line AC Controller X1 X1 g k SINGLE PHASE LOAD...

Страница 10: ...1 2 J2 4 5 1 2 J1 5 6 1 3 J3 5 X2 X2 X1 X1 DELAY COMMAND SOFT INHIBIT INSTANT INHIBIT J4 7 10 8 12 11 4 6 1 2 on off on off 24 VAC 5 com com 12 I2 I1 g k Figure 7 4 Thyristor Bridge Rectifier X1 X1 g k LOAD Transformer X2 X2 Figure 8 4 Thyristor Bridge Rectifier Figure 9 2 Thyristor Center Tapped Transformer ...

Страница 11: ...F X2F X1R X1R X2R X2R 1 2 J1 4 5 1 2 J2 1 2 FCOAUX60 AUXILIARY FIRING BOARD J3 J7 X2R X2R X1R X1R Cut trace as indicated by note 13 on E168 Figure 10 8 Thyristor Two Bridge Rectifiers FCRO4100 FIRING BOARD 1 2 J2 4 5 1 2 J1 5 6 1 3 J3 5 X1 X1 DELAY COMMAND SOFT INHIBIT INSTANT INHIBIT J4 7 10 8 12 11 4 6 1 2 on off on off 24 VAC 5 com com 12 I2 I1 g k Figure 8 4 Thyristor Center Tapped Transformer...

Страница 12: ...eases Gate delay dynamic transfer function bandwidth 3 dB at 67 Hz phase shift 45 at 57 Hz Gate drive phase balance 1 max Delay angle variance Δ α Δ f 1 5 Hz 50 60 Hz compensation via J3 selection Lock acquisition time 30 ms typ Soft start stop time independently configurable 0 05 20 0 s typical Low SIG HI inhibit Firing inhibited when SIG HI 0 48 Vdc Remove D6 to defeat this feature Power on inhi...

Страница 13: ...nter to Center WARNING Check these connections very carefully before energizing the firing board Improper connections will result in product and or customer equipment damage If you have any questions concerning these connections call for assistance J5 J2 J1 COM POWER ON Green LED PD2 INHIBIT RED LED PD1 J3 120 240 or 240 480 50 60 HZ PROGRAMMING Plug for optional Regulator Board P VRCL1P 1 R7 SPAN...

Страница 14: ... 640581 1 C2MNLPLG06 J2 5 position Header right angle 1 350945 0 C2MNLRPH05 J2 5 position Header vertical 640900 1 C2MNLVPH05 P2 5 position Plug 350809 1 C2MNLPLG05 J3 5 position Header right angle 1 350945 0 C2MNLRPH05 J3 5 position Header vertical 640900 1 C2MNLVPH05 P3 5 position Plug 350809 1 C2MNLPLG05 J4 12 position Header vertical 350713 1 C2MNLVPH12 P4 12 position Plug 350735 1 C2MNLPLG12 ...

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