CHAPTER 5: SETTINGS PRODUCT SETUPM60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 5-1195For the graphical front panel, the test consists of the following stages:1. All 22 LEDs on the relay are illuminated. This is a quick test to verify if any of the LEDs is "burned." This stage lasts aslong as the control input is on, up to a maximum of one minute. After one minute, the test ends.2. All the LEDs are turned off, and then one LED at a time turns on with the orange color for one second, then back off.The test routine starts at the top left panel, moving from the top to bottom for all 14 LEDs. Then the eight pushbuttonLEDs are tested in the same manner. This test checks for hardware failures that lead to more than one LED beingturned on from a single logic point. This stage can be interrupted at any time.3. All the LEDs are turned on with the orange color. One LED at a time turns off for one second, then back on. The testroutine starts at the top left panel moving from top to bottom for all 14 LEDs. Then the eight pushbutton LEDs aretested in the same manner. This test checks for hardware failures that lead to more than one LED being turned offfrom a single logic point. This stage can be interrupted at any time.4. Additionally, stages 2 and 3 are repeated twice for the five device status LEDs and nine event cause LEDs, one timewith green color on and the other with red color on.When testing is in progress, the LEDs are controlled by the test sequence, rather than the protection, control, andmonitoring features. However, the LED control mechanism accepts all the changes to LED states generated by the relayand stores the actual LED states (on or off) in memory. When the test completes, the LEDs reflect the actual state resultingfrom relay response during testing. The reset pushbutton does not clear any targets when the LED Test is in progress.A dedicated FlexLogic operand, LED TEST IN PROGRESS, is set for the duration of the test. When the test sequence is initiated,the LED TEST INITIATED event is stored in the event recorder.The entire test procedure is user-controlled. In particular, stage 1 can last as long as necessary, and stages 2 and 3 can beinterrupted. The test responds to the position and rising edges of the control input defined by the LED TEST CONTROLsetting. The control pulses must last at least 250 ms to take effect. The following diagram explains how the test isexecuted.Figure 5-50: LED test sequence
