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7. Test Descriptions
Test Sequence :
1. Monitor is powered up in the quiescent state.
2. A signal greater than 25Vrms is applied to each GY channel, one at a time, while GRN1 or GRN2 is at AC line.
3. fault state is checked for each channel.
Monitor Response to PASS
:
Monitor must go to fault state when a signal greater than 25Vrms is applied to any GY channel.
(Note: This test is ran for full sine wave, positive rectified, and negative rectified signals.)
GRN, YEL, 15Vrms (Sine Wave, Positive Rectified, Negative Rectified)
Test Description :
Verify that the monitor recognizes a signal less than 15Vrms as being "off" for every GY channel.
Test Sequence :
1. Monitor is powered up in the quiescent state.
2. A signal less than 15Vrms is applied to each GY channel, one at a time, while GRN1 or GRN2 is at AC line.
3. fault state is checked for each channel.
Monitor Response to PASS
:
Monitor must NOT go to fault state when a signal less than 15Vrms is applied to any GY channel.
(Note the test is ran for full sine wave, positive rectified, and negative rectified signals.)
7.3.3
Optional Tests
GRN/GRN, GRN/YEL, YEL/GRN, YEL/YEL, Permissive (Non-Programmed Card)
Test Description :
Run this test with a "clean" (non-programmed) card to verify that there are no hidden permissives.
Test Sequence :
1. Monitor is powered up in the quiescent state.
2. Conflicting GRN or YEL signals are presented to each channel pair.
Note :
This test should be done with a "clean" programming card in the monitor (no permissives programmed)
Monitor Response to PASS
:
Each channel pair must put monitor into fault state when the conflict is presented.
Watchdog Enable
Test Description :
Verify that the monitor disables the Watchdog detection circuitry when the AC line voltage drops below 98 +/- 2 Vrms
and re-enables the Watchdog circuitry when the AC line voltage rises above 103 +/- 2 Vrms. Also, the hysteresis
between the disable and re-enable voltages must be a minimum of 3 Vrms.
Test Sequence :
1. Monitor is powered up in the quiescent state.
2. Monitor AC line set to just above 100Vrms
3. PCMT Watchdog signal is turned off.
4. Delay.
5. Check for monitor fault state.
6. Monitor AC line is set to greater than 105Vrms.
7. PCMT Watchdog signal is turned on.
8. Monitor is reset.
PCMT-8000 User's Manual
Rev. 1.7
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