Page 1: ... S S C RP o w e r C o n t r o l S p e c i a l i s t s MA N U A L E P 1 1 1 0 1 0 0 0 R E V0 5 2 3 1 9 O P E R A T I O NA N DS E R V I C EMA N U A L 1 0 t o 1 0 0 0 A m p M o d e l s S i n g l e P h a s e S C R E P 1 S e r i e s ...
Page 2: ...nal Change Soft Start Option S 11 5 5 Current Trip Option Option T 12 Chapter 6 Start Up 13 6 1 Manual Control 13 6 2 Automatic Control 14 6 3 Current Limit Option C Start up 14 6 4 Current Trip Option T Start up 15 6 5 Command Signal Change Soft Start Option S Start up 15 6 6 Load Voltage Regulartions Option R 15 Chapter 7 Diagrams 16 7 1 Main Logic Board for EP1 Series 10 thru 50 Amp Units EPCL1...
Page 3: ... Fusing Current Limit Current Trip and Control Signal Soft Start are also available The SCRs are protected by MOV and dv dt networks as standard The EP1 series is well suited for a variety of loads including inductive resistive and high inrush 1 2 Receiving and unpacking Upon receipt of this product you should immediately do the following Inspect the unit for possible shipping damage if damaged yo...
Page 4: ...o 20 seconds Hard Firing Gate Pulse A combination of a high potential gate pulse and a rapid rise time is used to prevent SCR damage due to di dt stress Input Adjustments Gain 4 20mA 0 5 Vdc 0 10 Volts Offset 50 of gain maximum Regulation Option R Optional Feature to provide Average Load Voltage regulation of 2 over a 10 line voltage input change Protective Networks Optional Fusing I T fuse protec...
Page 5: ...00 11 5 9 88 6 25 9 5 9 00 312 EP1 xx150 F 150 11 5 10 75 10 0 8 0 8 00 281 EP1 xx225 F 225 11 5 10 75 10 0 8 0 8 0 281 EP1 xx350 F 350 13 0 11 0 10 0 8 0 8 0 436 EP1 xx500 F 500 21 0 11 0 10 0 19 25 9 25 436 EP1 xx650 F 650 21 0 11 0 10 0 19 25 9 25 436 EP1 xx800 F 800 25 625 15 625 13 5 23 875 13 875 436 EP1 xx1000 F 1000 CF CF CF CF CF CF xx 12 120 V 20 208 V 24 240 V 38 380 V 41 415 V 48 480 V...
Page 6: ...haracteristics SCR Peak Inverse Voltage PIV Rating for line voltage 120 575V 1500V for all models 2 4 Ambient Temperature Ambient temperature operating range 0 to 40 C 32 to 104 F Transportation and storage range 0 to 65 C 32 to 149 F Note Output current rating decreases by 10 for each 5 C rise 9 F in ambient temperature over 40 C 104 F to a maximum of 60 C 140 F 2 5 Cooling Units rated 10 to 150A...
Page 7: ...d metal enclosures FLA x 1 5 sq ft of exposed area 7 Non vented stainless steel enclosures FLA x 1 5 sq ft of exposed area 4 Mount units vertically so heat sink fins are parallel to vertical mounting surface Non Fan cooled units must be mounted with the power terminals located at the bottom to ensure proper cooling Notes FLA is the EP1 unit current rating The area of the enclosure that is against ...
Page 8: ...to the mounting surface If the unit has a fan install the unit so the fan blows upward vertically In dirty or contaminated atmospheres the unit should be cleaned on a regular basis to insure proper cooling Do not use any chemicals to clean the unit To remove surface dust use 80 to 100 psi clean dry compressed air only A three inch high quality dry paint brush is helpful to loosen up the dust prior...
Page 9: ...unit marked T1 3 Connect the Load output power cable and the L2 power cable together 4 Using a 14awg 600v wire fused at 2A connect the L2 power to TB1 pin 6 on the EP1 unit If an option card is present connect the L2 wire to TB2 pin 7 on the option card See Figure 2 3 for connections with and without option cards Figure 2 Power Connection without option card Figure 3 Power Connection with option c...
Page 10: ...he main board with pin 1 being Positive and pin 2 being Negative Note You must configure the unit for the type of automatic signal used by selecting the appropriate jumper See illustrations 7 1 or 7 2 for configuration information 2 If both the manual and automatic control signals are needed consider installing an auto manual switch If both the manual and automatic signals are connected simultaneo...
Page 11: ...oad can vary during process transitions or during a start up condition This option can also be disabled by removing the X4 jumper on the option card See illustrations 7 3 or 7 4 for jumper location 5 3 Load Voltage Regulation Option R Load Voltage Regulation provides a means of stabilizing the output voltage when input voltage variations are present The unit monitors its output voltage thru the on...
Page 12: ...ceeds the current trip threshold set by potentiometer P3 The adjustment range is 50 to 200 of unit rated current when going from fully counter clockwise to fully clockwise The Current Trip is a latched trip and requires a manual reset via a normally closed dry contact connected to TB1 Current transformer is included as standard This option can be disabled by removing jumper X3 on the option card S...
Page 13: ...pot connections before proceeding 4 Place the Clamp on current meter over the cables connected to the T1 Load terminal on the unit 5 Set the digital volt meter to AC volts and connect it to the T1 output terminal and the L2 connection on the main board or option card if present 6 Energize the main power and verify there is no current or voltage output 7 Slowly rotate the manual pot clockwise while...
Page 14: ...ck to its minimum value 10 Increase the automatic signal gradually to 100 Max verify the unit output voltage and current increase and follow the command signal level 11 Verify the units output voltage and current are at maximum 12 Slowly reduce the automatic signal to minimum and verify the units output followed 13 Remove the units power and disconnect the current and volt meters 14 The unit is no...
Page 15: ...ut NOTE If Option S is not installed and a Current Trip is reset with the command signal present the unit will come on at the command signal level without a soft start Option S is recommended when using Option T to facilitate a controlled ramp back to the desired output power level 6 5 Command Signal Change Soft Start Option S Start up This section assumes the regular start up in sections 6 1 and ...
Page 16: ...Phasetronics Page 16 Chapter 7 Diagrams 7 1 Main Logic Board for EP1 Series 10 thru 50 Amp Units EPCL1001 ...
Page 17: ...Phasetronics Page 17 7 2 Main Logic Board for EP1 Series 85 thru 1000 Amp Units PCL1002 Note 380 575 volt units are not dual connectable 415 volts is dual connectable 208 415 ...
Page 18: ...Phasetronics Page 18 7 3 EP1 Series Option Board 10 thru 50 Amp Units PCM1600 ...
Page 19: ...Phasetronics Page 19 7 4 EP1 Series Option Board 85 thru 1000 Amp Units PCM1603 ...
Page 20: ...color scheme coded Black Yellow Gray White The second is coded Red White and Red White 1 Using the Ohm meter measure the resistance between the Black Yellow pair 2 Using the Ohm meter measure the resistance between the Gray White pair 3 For units with two sets of Red White wires ohm each pair separately 4 Compare your readings to the table below For wire that is color coded black yellow gray and w...
Page 21: ...tings and jumper configurations 6 Using a Philips Screwdriver remove all the PCB mounting screws 7 Remove the defective PCB assembly 8 Units 10 50A Strip 1 4 inch from each SCR lead to prepare for soldering 9 Units 10 50A Insert each SCR lead into the correct hole by color code and solder 10 Mount the new PCB assembly 11 Re install the mounting screws 12 Re install all control wires disconnected e...
Page 22: ...Verify the manual pot and automatic signal are at minimum 6 Preset P1 and P3 to center position Preset P2 fully counter clockwise 7 Set the digital volt meter to AC volts and connect it to the T1 and L2 terminals 8 Energize the unit 9 Adjust the Offset pot P1 fully counter clockwise and verify the unit has output 10 Monitor the output voltage and adjust the P1 Offset pot slowly clockwise to decrea...
Page 23: ... P2 fully counter clockwise 7 Preset the option board Feedback adjustment pot P1 fully clockwise 8 Set the digital volt meter to AC volts and connect it to the T1 and L2 terminals 9 Energize the unit 10 Adjust the main board pot P1 fully counter clockwise and verify the unit has output 11 Monitor the output voltage and adjust the P1 Offset pot slowly clockwise to decrease the units output voltage ...
Page 24: ... back to minimum 28 Adjust the manual pot to maximum 29 Remove power from the unit and wait 5 seconds 30 Apply power and verify the soft start is ramping up the output voltage 31 Remove power and adjust P3 clockwise to increase or counter clockwise to decrease the soft start ramp time as needed 32 Repeat steps 29 thru 31 as needed to dial in the desired Power On Soft Start Time 33 Reduce all comma...
Page 25: ...f these differences and the wide variety of applications for solid state controls each application designer must verify that the solid state equipment is acceptable for the application In no event will Phasetronics be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment The diagrams and illustrations in this document are included solel...
