Tripp Lite SU30K3/3XR5 Owner's Manual for SmartOnline 3-Phase 20kVA & 30kV - Page 11

6. Communications (continued) 6.4 Remote Emergency Power Off (EPO) This optional feature is only for those applications which require connection to a facility's Emergency Power Off (EPO) circuit. When the UPS System is connected to this circuit, it enables emergency shutdown of the output. Using a user-supplied cable, connect the UPS System's EPO port to a usersupplied remote switch. The EPO port is not a phone line surge suppressor; do not connect a phone line to this port. The pin assignments for the EPO port are shown in the following diagram. Note: if there is a short between pins 2 and 3, 2 and 5, 4 and 5, or 3 and 4, the UPS system will power off. To reset from a Remote Emergency Power Off Shutdown, make sure there is AC line input power present, the Input Breakers are ON, and the shutdownsignal has been removed from the EPO circuit. Press the front panel "OFF" Button for 2 to 3 seconds (until a beep is heard); this will place the UPS System in "Bypass Mode." Then, press the "ON" Button for one second. The UPS will re-start if AC line power is present. Pin assignment: X 1 2 3 4 5 X 6 7. Adding or Replacing Internal Batteries DANGER! POTENTIALLY LETHAL HIGH VOLTAGE! FOR QUALIFIED ELECTRICIANS ONLY! Follow all safety precautions in the Safety section before adding or replacing internal batteries. DANGER! DO NOT REMOVE BATTERY SLEEVE! Do not remove the plastic sleeve covering the battery strings. The sleeve is designed to prevent accidental contact with the terminals on the individual batteries. Contact with the terminals will create a potential for serious injury or death from lethal high voltage. Do not allow tools or other metal objects to come in contact with the terminals. CAUTION! BATTERY PACKS ARE HEAVY! Use assistants as needed. WARNING! CHECK BATTERY PACK VOLTAGE BEFORE COMPLETING INSTALLATION Do not install battery packs with DC voltages outside the acceptable range. (They may compromise battery backup capabilities). NOTE! Each battery pack consists of two strings of batteries: one string with a BLACK cable and one string with a RED cable. The batteries are designed for hot-swap replacement, which allows connected equipment to continually receive AC mains power (but not battery backup support in the event of a blackout) during the battery installation procedure. (See section 5.4, Operation of Manual Bypass Switch.) Although the batteries can be hot-swapped, qualified service personnel may want to completely turn the UPS off during battery installation. (See section 4.2, Turning the UPS Off.) Internal battery packs must be replaced by equivalent batteries available from Tripp Lite. Adding battery packs will increase recharge time. Individual models may vary slightly from diagrams. 11