49Magtrol Model DSP7000 Dynamometer Controller C h a p t e r 5 – AlarmSystemSETUP • OPERATION5. Press ToRqUE UNITS button and use and buttons and Decrease/Increase dial to setdesired global power value.6. Press ShIFT 2 times to complete global Power Alarm setup and return to the main menu.5.3.2 gloBal power aCTionIf power is greater than the maximum setting the display will flash “gLobAL PoWER ALARM”(as indicated in Figure 5–9) The alarm relay will open, excitation current will hold at last value for3 seconds then drop to zero. Standby signal is not cycled.POWERBRAKE STATUS SET POINT SET POINT P I DTORQUE SPEED USER DISPLAY**** GLOBAL POWER ALARM ****TORQUE=XXX.XX XX RPM=X XXXXFigure 5–9 Global Power Alarm Disply5.3.3 To reSeT gloBal power alarMPress any front panel button other than ShIFT. If the alarm condition is clear, the unit will returnto normal operation. Although not recommended, another option would be to disable the alarm byfollowing the alarm setup instructions in Section 5.3.1 – Instructions for Global Power Alarm Setup.5.4 maximum speed alarm• Used to limit speed of system (motor, dynamometer, couplings, etc.)• Default is set at 4000 rpm5.4.1 inSTruCTionS for MaxiMuM SpeeD alarM SeTup1. Starting from main menu, press ShIFT.2. Press SETUP button.3. Select DYNo.4. Select ENCoDERS. The display should appear as follows:POWERBRAKE STATUS SET POINT SET POINT P I DTORQUE SPEED USER DISPLAYSOURCEXXXX PPRXXSPEED ALARMXXXXFigure 5–10 Speed Alarm Setup Menu5. Press SCALE P button and use and buttons and Decrease/Increase dial to set desiredmaximum speed for TSC1.6. Press ShIFT 3 times to complete Maximum Speed Alarm setup and return to the main menu
