| EPS 708 | 3 Contents English Symbols used 6.14 Changing the calibrating oil In the documentation 6.15 Replacing the electric fuel pump On the product 6.16 Replacing the float switch 6.17 Replacing the tank heater User information 6.18 Replacing the pneumatic springs Important notes 6.19 Replacing the protective hood...
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4 | EPS 708 | Updating the parameters of the frequency converter Updating parameters Printing the safety log Error messages Software messages Error messages on the chiller Trouble-shooting Trouble-shooting table Checking the pressure control valve on the high- pressure rail...
Symbols used | EPS 708 | 5 Symbols used On the product In the documentation Observe all warning notices on products and ensure 1.1.1 Warning notices - they remain legible. Structure and meaning Warning notices warn of dangers to the user or people DANGER –...
Multimeter with the following data: instructions must be carefully studied prior to start-up, Resolution of at least 1 mA in a measuring range connection and operation of the EPS 708 and must al- greater than 900 mA ways be heeded. Measurement accuracy: ±0.2% of measured value ±4 mA...
Variant overview | EPS 708 | 7 Variant overview Sealing ring variants Sealing rings of different materials are used for sealing Voltage variants on the pressure regulating valve block (Fig. 2) and sole- noid valve block (Fig. 3). The correct tightening torque...
8 | EPS 708 | Overview of EPS 708 Overview of EPS 708 Covers Test bench 12 13 Fig. 5: Overview of EPS 708 1 Protective hood with handle Fig. 6: Covers on front 2 Cover of calibrating oil chamber...
Checklist for normal operation | EPS 708 | 13 Checklist for normal operation Status LEDs on components in the test bench provide information about their current operating status. During normal operation (test bench on, no testing), the following states apply:...
14 | EPS 708 | Checklist for normal operation Power packs G3 and G4 In normal operation, the power LEDs of both power packs light up. To check the status, proceed as follows: 1 689 975 233 2018-05-08 Robert Bosch GmbH...
Checklist for normal operation | EPS 708 | 15 LEDs on PCBs 5.3.2 PCB (A6) The PCBs contain LEDs, which light up in a particular sequence during normal operation (test bench on, no testing). Symbol LED lights up LED lights up at half...
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16 | EPS 708 | Checklist for normal operation 5.3.3 PCB (A5) 5.3.4 PCB (A4) V96 V98 V24 V26 458863-21_Ri Fig. 22: PCB 1,688,400,451 V1 Firmware status Status Firmware in good working order. No faults occurred 458863-23_Ri Disturbance to 24 V power supply Fig.
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Checklist for normal operation | EPS 708 | 17 5.3.5 PCB (A14) Jumper setting for circuit board (A14) Circuit board A14 is included in the scope of delive- ry of retrofit kit CP4 (1 687 010 390) and replaces circuit board A6 when making the conversion.
Test 1. Connect the EPS 708 to the voltage network. 2. Switch on the EPS 708 at the main switch. Observe the LED "R" (Fig. 26, item 2b) on the time delay relay K9 immediately after power is switched on. The LED must light up approx.
4. In the "Injection component test main menu" start screen, select <F7>. A password request appears. Fig. 28: Replacing PCB 1 688 400 452 (A3) in the EPS 708 1958 5. Enter the password in the input line: 6. Confirm your entry with <F12>.
2014-11 (see Fig. 29) 6.2.1 Removing the PCB 1. Enter the calibration values in the software as fol- 1. Turn off the EPS 708 at the master switch. lows: 2. Secure the master switch so that it cannot be switched back on.
Replacing PCB 1 688 400 537 (A14) 6.3.1 Removing the PCB 1. Switch off the EPS 708 at the master switch. 2. Secure the master switch so that it cannot be swit- ched back on. 3. Unplug the mains plug or disconnect from mains electricity.
Replacing PCB 1 688 400 453 (A4) 6.4.1 Removing the PCB 1. Turn off the EPS 708 at the master switch. 2. Secure the master switch so that it cannot be switched back on. 3. Unplug the mains plug or disconnect from mains electricity.
11. Continue with <F12>. 1. Turn off the EPS 708 at the master switch. 12. Back with <F11>. 2. Secure the master switch so that it cannot be switched back on.
The calibration values are saved and the A leakproof container is required to catch the oil. calibration date is displayed. 1. Turn off the EPS 708 at the master switch. 11. Continue with <F12>. 2. Secure the master switch so that it cannot be 12.
Get a leakproof container ready for catching cooling water. Note the disposal instructions in section 2.3.2. 1. Turn off the EPS 708 at the master switch. 2. Secure the master switch so that it cannot be switched back on. 3. Unplug the mains plug or disconnect from mains electricity.
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26 | EPS 708 | Repair 6.7.2 Disconnecting the chiller 6.7.3 Removing the chiller Fig. 38: Disconnecting the chiller Sever any cable ties to expose connecting cables. 1. Disconnect the two connecting cables with green plugs (1 684 463 762 and 1 684 463 727) from the back of the chiller switch box (see Fig.
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4. Pull the chiller out of the support frame at the front of the EPS 708 test bench, and place on a firm surface. 5. Remove the control valve from the chiller.
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1. Open both valves (Fig. 41, items 1 and 2) on the chiller. Fig. 42: Chiller connection 4. On the back of the EPS 708, route the drain hose (Fig. 43, item 3) into a plastic container or similar (Fig. 43, item 2). 5. Open the tap of the water mains.
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3. Close the EPS 708 protective hood. temperatures drop to 30°C. If this is not the case, 4. Start the EPS 708 test bench via the master switch. check the valves on the chiller. 5. Start the EPS945 system software.
Secure the main switch so that it cannot be switched back on. ¶ Unplug the mains plug or disconnect the EPS 708 from the mains before opening. 458863-84_Pal 1. Drain the water chiller (see section 6.7.1). Fig. 45: Removing the water connection 1.
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Repair | EPS 708 | 31 6.8.3 Preparing the water pump 6.8.4 Installing the water pump 1. Place the water pump in the water chiller and secure Flexible corrugated tubing and insulating material it with the aid of washers (4 x) and hex head bolts for insulating the pump are included in the scope of (4 x).
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Fig. 49: Chiller connection 3. On the back of the EPS 708, route the drain hose Close the inlet valve (see Fig. 49, item 1). (see Fig. 50, item 3) into a plastic container of the Close the tap of the water mains.
1. Remove the 4 hex head bolts. 6.9.1 Disconnect the fan electrically 1. Switch off the EPS 708 at the main switch. 2. Secure the main switch so that it cannot be swit- ched back on. 3. Unplug the mains plug or disconnect from mains electricity.
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34 | EPS 708 | Repair 6.9.3 Preparing the fan 6.9.5 Connecting the fan electrically 1. Remove fan from the packaging. 1. Push the connection cable into the electrical cabinet 2. Cut off all wire ferrules at the end of the connection through the cable gland (see Fig.
Removing the controller water chiller 6.10.1 Disconnecting the controller 1. Switch off the EPS 708 at the main switch. 2. Secure the main switch so that it cannot be swit- ched back on. 3. Unplug the mains plug or disconnect from mains electricity.
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" The standard factory parameters are loaded. To ope- 6.10.6 Concluding operations rate the EPS 708, it is necessary to change the para- 1. Check the protective conductor in accordance with meters (see following description). DGUV A3. 2. Switch on EPS 708.
6.11.1 Disconnecting the safety pressure switch electrically 1. Switch off the EPS 708 at the main switch. 2. Secure the main switch so that it cannot be swit- ched back on. 3. Unplug the mains plug or disconnect from mains electricity.
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38 | EPS 708 | Repair When loosening the union nut on the safety pressure After the safety pressure switch has been installed, switch, it is necessary to hold the safety pressure the connection must be checked for leaks with a switch firmly with a second wrench (see Fig.
6.12.1 Disconnecting the pressure switch electri- cally 1. Switch off the EPS 708 at the main switch. 2. Secure the main switch so that it cannot be swit- ched back on. 3. Unplug the mains plug or disconnect from mains electricity.
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40 | EPS 708 | Repair When loosening the union nut on the safety pressure After the pressure switch has been installed, the switch, it is necessary to hold the pressure switch connection must be checked for leaks with a leak firmly with a second wrench (see Fig.
6.13.1 Disconnecting the temperature sensor elec- trically 1. Switch off the EPS 708 at the main switch. 2. Secure the main switch so that it cannot be swit- ched back on. 3. Unplug the mains plug or disconnect from mains electricity.
The calibrating oil is now changed. 2. Fit and secure the lid of the calibrating oil tank. 3. Insert the cover and secure. " The EPS 708 is ready for operation. 1 689 975 233 2018-05-08 Robert Bosch GmbH...
Repair | EPS 708 | 43 6.15 Replacing the electric fuel pump 5. Slacken the two screws on the center segment of the calibrating oil tank lid (see Fig. 70, item 1), take it out of the tank and set down on the leakproof surface.
3. Slacken all four screws and remove the float switch 13. Fit the front cover of the calibrating oil chamber. from the tank. Catch and mop up any calibrating oil " The EPS 708 is ready for operation. residues with a cloth. 6.16.2 Installing the float switch ¶...
Repair | EPS 708 | 45 6.17 Replacing the tank heater 6.17.1 Removing the tank heater Fig. 73: Overview of tank lid 1 Terminal cover Fig. 74: Heater 2 Rear segment of calibrating oil tank lid 3 Center segment of calibrating oil tank lid 9.
46 | EPS 708 | Repair 6.18 Replacing the pneumatic springs 6.18.1 Removing the pneumatic springs WARNING - Risk of getting trapped by fal- ling protective hood! There is a risk of getting trapped if the pro- tective hood is not secured.
Repair | EPS 708 | 47 6.19 Replacing the protective hood WARNING - Risk of getting trapped by falling protective hood! There is a risk of getting trapped if the protective hood is not secured. ¶ Always secure the protective hood with the aid of another person.
Fig. 80: Flywheel with drive coupling 1. Turn off the EPS 708 at the master switch. 2. Secure the master switch so that it cannot be switched back on. 3. Unplug the mains plug or disconnect from mains electricity.
Secure the master switch so that it cannot be switched back on. ¶ Unplug the mains plug or disconnect the EPS 708 from the mains before opening. ¶ Wait until the discharge time of the drive unit’s DC intermediate circuit (drive motor with converter) has elapsed (<...
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Removing the drive motor 6.21.2 Installing the drive motor 1. Turn off the EPS 708 at the master switch. 2. Secure the master switch so that it cannot be switched back on. 3. Unplug the mains plug or disconnect from mains electricity.
Removing the valve support Get a cloth ready for catching and mopping up calibrating oil. 1. Turn off the EPS 708 at the master switch. 2. Secure the master switch so that it cannot be switched back on. 3. Unplug the mains plug or disconnect from mains electricity.
8. Slacken the pressure limiter again by 90°. 9. Tighten the pressure limiter to 85 +5 Nm. 10. Install the pressure control valve block in the EPS 708 in the reverse order (see section 6.22.3). 1 689 975 233 2018-05-08...
(fiber sealing ring or copper sealing ring). 1. Switch off the EPS 708 at the main switch. 2. Secure the main switch so that it cannot be swit- ched back on. max. 6 Nm 15 +2 Nm 3.
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54 | EPS 708 | Repair 6. Remove the hose coupling (Fig. 92, item 1). When Use the correct tightening torque (see Fig. 93) when loosening the hose coupling, hold the connection tightening the connection fitting. An incorrect tigh- fitting (Fig. 92, item 2) securely with a wrench. Do...
2. Remove the hexagon nut (item 1). 3. Remove the solenoid (item 2). 4. Install a new solenoid. 5. Install the solenoid valve block in the EPS 708 in the reverse order. Fig. 95: Pressure control valve block and solenoid valve block 1.
Tightening torque: 1.5 Nm sunk (spot faced). 7. Install the coil (see section 6.27). 8. Install the solenoid valve block in the EPS 708 in the reverse order (see section 6.26.2). max. 6 Nm 15 +2 Nm Fig.
(see Fig. 101) depends on the sealing ring material (fiber sealing ring or copper sealing 1. Switch off the EPS 708 at the main switch. ring). 2. Secure the main switch so that it cannot be swit- ched back on.
58 | EPS 708 | Repair 6.31 Replacing the frequency converter A13 for the lubricating-oil supply unit One of two different versions of frequency conver- Signal 13 14 DC I< Adj. 15...17V Boost ter A13 is installed. The replacement procedure differs, DC ok X1.3...
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Repair | EPS 708 | 59 1. Switch off the EPS 708 at the main switch. 2. Secure the main switch so that it cannot be swit- ched back on. 3. Unplug the mains plug or disconnect from mains electricity.
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60 | EPS 708 | Repair 3. With the aid of the table, disconnect and remove Disconnecting and removing the connection cable 1 684 465 587 the wires from contactor K8 (see Fig. 102, item 4) to circuit breaker F6:...
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Repair | EPS 708 | 61 Installing the frequency converter The new frequency converter and all parts needed to install and connect the new frequency converter are included in conversion kit 1 687 001 990. The new frequency converter A13 (from FD 2015-11) is contained in conversion kit 1 687 023 774 and...
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62 | EPS 708 | Repair Installing the time delay relay K9 Connecting the protective conductor Follow the supplied circuit diagram 1 689 911 487. Range Range Time Time Fig. 111: Time relay K9 RUN FWD REV POWER 1. Set the delay time to 10 seconds on the time relay K9 (see Fig.
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Repair | EPS 708 | 63 Attaching the M11 three-phase motor If cables U/T1, V/T2 and W/T3 are attached at the wrong points, the three-phase motor will run in- Follow the supplied circuit diagram 1 689 911 487. correctly, and the pump will accumulate little to no pressure.
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64 | EPS 708 | Repair 10. Pull the grommet included in the scope of delivery 2. Insert the control terminal connector from below to over the connection cable 1 684 465 810. the rear control terminal of the frequency converter 11. Insert the grommet with connecting cable (see Fig.
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Output DC 24V 20A L2 L3 Range Time 380-440Vac Netz Line 1. Switch off the EPS 708 at the main switch. 2. Secure the main switch so that it cannot be swit- 1 L1 3 L2 5 L3 21 NC 1 L1...
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66 | EPS 708 | Repair 5. Disconnect the protective conductor (Fig. 123, item 1) from the protective conductor bar of the frequency converter A13. Signal 13 14 DC I< Adj. 15...17V Boost DC ok X1.3 18-29.5V Input 3AC 400-500V Output DC 24V 20A...
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Repair | EPS 708 | 67 Installing the frequency converter Connecting the frequency converter A13 1. Fasten the protective conductor (Fig. 126, item 1) The new frequency converter A13 is supplied with a to the protective conductor bar of the frequency parameter set that is designed for the EPS 708.
Wire 3 to terminal W 6. Perform safety checks in accordance with national legislation (e.g. DIN VDE 0701-0702 in Germany). 458863-47_Ri 7. Attach all of the covers to the EPS 708. Fig. 128: Lubricating oil supply 1 Oil metering unit 2 Three-phase motor M11...
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2. Fit the hoses to the lubricating oil supply (see Fig. 130). 3. Using the ratchet extension, install the lubricating oil supply in the EPS 708 with four hexagon bolts and shims (see Fig. 129). Fig. 130: Disconnecting the lubricating oil supply from components 4.
1. Turn off the EPS 708 at the master switch. 2. Secure the master switch so that it cannot be swit- 7. Remove the cover of the terminal box of the three- ched back on.
Repair | EPS 708 | 71 6.34 Replacing the pressure limiter of the 6.35 Replacing the pressure sensor B9/ high-pressure rail B10 of the high-pressure rail 1. Remove the high-pressure rail from the installation panel and take out of the test bench Proceed as described in section 6.33.
7. Screw the new pressure control valve with O-ring (4) 1. Switch off the EPS 708 at the master switch. into the mounting hole. 2. Secure the master switch so that it cannot be swit- 8.
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6.38.3 Adjusting temperature sensors 16. Exit the configuration menu by pressing Esc twice. " 1. Switch on the EPS 708 at the master switch. This completes the temperature adjustment. 2. Start the EPS945 system software. The software performs initialization 3.
Tightening torque: 5 +1 Nm 5. Fasten cover on the hydraulics chamber 1. Switch off the EPS 708 at the master switch. (see Fig. 7, item 1). 2. Secure the master switch so that it cannot be swit- 6. Perform zero point adjustment (see section 6.39.3).
Repair | EPS 708 | 75 6.40 Changing the workstation light as- 8. In the test area of EPS 708, remove the hose assem- sembly bly from the appropriate connection (Fig. 142, item 1). 6.40.1 Workstation light removal 1. Switch off the EPS 708 at the main switch.
8. Secure the power supply cable using a cable tie. 9. Switch on the EPS 708 using the master switch 10. Check the illumination quality. The illumination can be adjusted by turning the light fixture.
Updating the parameters of the frequency converter | EPS 708 | 77 Updating the parameters Updating parameters of the frequency converter 7.1.1 Preparatory work 1. Insert Bosch Memory Card in the care reader on the notebook. Important information 2. Insert "Edis" DVD in CD/DVD drive of the notebook.
78 | EPS 708 | Updating the parameters of the frequency converter Printing the safety log 5. Confirm with <Enter> (Fig. 147, item 2). The new parameter set is loaded. After approx. 1. Connect the printer to the notebook. Load Par from the MMC 30 seconds, "...
Updating the parameters of the frequency converter | EPS 708 | 79 Error messages 13. Select "DRIVE-INTEGRATED SAFETY TECHNOLOGY/ DIAGNOSIS" in the IndraWorks folder structure. Software messages 14. Select <Verify SI parameter>. The safety log opens. 15. Print out the safety log twice.
High-pressure alarm from R Ambient temperature is too high (>45 °C). R EPS 708 placed too close to the wall or the vent grille on the back of the safety pressure switch EPS 708 is obstructed by a bulky object. This reduces the air throughput.
Trouble-shooting | EPS 708 | 81 Trouble-shooting Trouble-shooting table Effect Cause Remedy Special notes No display on operator Monitor and/or PC not connected Check that both devices are con- unit or switched on. nected and switched on. PC-monitor connecting cable faul-...
82 | EPS 708 | Trouble-shooting Checking the pressure control valve Hydraulic check: on the high-pressure rail The following three fault situations may occur: The task of the pressure control valves is to generate Somewhat increased rail pressure with non-ener-...
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Trouble-shooting | EPS 708 | 83 Fault situation 2 Fault situation 3 The test pressure required during measurement cannot Calibrating oil emerges from the pressure control valve be attained although the high-pressure pump is intact. during the pump test. Cause:...
Reading out the memory module: ment (redundancy) is also employed as a means of mu- tual monitoring and for checking the 1. Switch on the EPS 708 via the master switch. filter loading. 2. After booting of the PC, start the application EPS945-PE/VE/CR in the Bosch applications list.
2. Secure the drive coupling 1 686 401 024 (item 3) R Check the connecting 99999 Memory module is to the flywheel of the EPS 708. Tightening torque: not detected cable to the memory modu- le for continuity. 95 ±2 Nm R Replace memory module.
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2. Attach the USB connecting cable (item 2) to the USB connection X22 (item 1) in the storage compartment of the EPS 708. To do so, route the USB connecting cable under the protective hood. Fig. 154: Hydraulic connection 6.
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Calibrating the high-pressure rail | EPS 708 | 87 3. Switch on the EPS 708 via the master switch. 10.1.4 Opening and starting the calibration test sequence 4. Start the EPS945 software. The software performs initialization. 1. In the "Configuration" window, select the menu 5.
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88 | EPS 708 | Calibrating the high-pressure rail 10.1.5 Bleeding the high-pressure rail and bringing it 10.1.8 Starting the test to the correct temperature 1. In the "Rail pressure sensor calibration" window, Before the high-pressure rail is calibrated, select <F6>.
5. Confirm your entry with <F12>. 6. Select menu item "Calibration >> EPS708". 7. Continue with <F12>. 8. In the test area of EPS 708, remove the hose assem- blies from both test oil connections (Fig. 157, item 1). The test connections (Fig.
— ● ● ● Supplied with EPS 708 up to date of manufacture 2013-05 (see Edis Info 201307_065). Supplied with EPS 708 from date of manufacture 2013-06 (see Edis Info 201307_065). Supplied with retrofit kit CP4 (1 687 010 390) from date of manufacture 2014-10 and with EPS 708 from date of manufacture 2014-12.
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Calibrating the high-pressure rail | EPS 708 | 91 6. Switch on multimeter and set the direct-current 10. Open the protective hood of the EPS 708. measuring mode. 11. Switch adapter cable 1 684 460 291 to the EAV/ 7. Set the appropriate measuring range (> 900 mA) DMV2 plug of the connecting cable (X24).
92 | EPS 708 | History 11. History Date Compiled by Change 2018-05-08 Pal Corrections from content in table from chapter 9.4 2017-09-25 Pal Added chapter "Changing the workstation light assembly " and "Changing workstation light" New note for time relay K9.
Annexes | EPS 708 | 93 12. Annexes Overview of chiller Hydraulic diagram Circuit diagrams for EPS 708 Version 04.04.11 Version 15.07.14 (without electrical safety socket X21 and with suplemantary set CP4) Version 22.10.15 (new lubricating-oil supply unit) Connection diagram CP4 Circuit diagrams for chiller 12.1...
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1.4A ZME01 4.4/ ZME02 4.4/ EKP1 EKP2 EKP3 DRV1 DRV2 DRV3 DRV01 4.4/ DRV02 4.4/ DMV2 Datum Robert Bosch GmbH Powerboard_1 1689 911 487 Bearb. 68S01133-21 04.04.2011 EPS708 Gepr. 04.04.11 Stromlaufplan 68S03311-15 19.11.2010 nderung Datum Name Norm Urspr. Ers. f.
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Tank KEM/PLU m.Flansch Khlung Proportional valve Bypass CP-Volume CP-Volume Cooling- not used CP-Backflow CP-Backflow to PLU Valve Datum 01.09.09 Robert Bosch GmbH Powerboard_2 1689 911 487 Bearb. 68S01133-21 04.04.2011 EPS708 Gepr. 04.04.11 Stromlaufplan 68S03311-15 19.11.2010 nderung Datum Name Norm Urspr.
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X301 X302 black blue SUPPLY+ X320 X320 4.4/ /9.1 SUPPLY- 4.4/ Valve Control-Board 1688 400 480 8-Pin Datum Robert Bosch GmbH Valve-Block 1689 911 487 Bearb. 68S01133-21 04.04.2011 EPS708 Gepr. 04.04.11 Stromlaufplan 68S03311-15 19.11.2010 nderung Datum Name Norm Urspr. Ers. f.
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4-20mA RDS1 RDS2 Rail Tank Sensor Sensor Sensor Sensor Sensor opt. Input Becker-Back- KEM-Flow- Flow-Sensor Sensor Datum Robert Bosch GmbH Interface & Microblaze-Bd. 1689 911 487 Bearb. 68S01133-21 04.04.2011 EPS708 Gepr. 04.04.11 Stromlaufplan 68S03311-15 19.11.2010 nderung Datum Name Norm Urspr.