Siemens GCP5000 Instruction & Installation Manual page 242

SSCC APPLICATIONS & PROGRAMMING GUIDELINES
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If the data connection is good, the following would be displayed for TSS1:
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TSS1: U=1 D=0 T=0 A=0 P=0
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U=Gate Up
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D=Gate Down
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T=Gate Tip Sensor
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A=Bell Audio
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P=Bell Power
These items can be either 1 or 0. In the example, U=1 so the gate up
contact is energized. The other items are all de-energized. Dropping the
gates to horizontal will activate the tip sensors and de-energize the gate
up contact, changing the MTSS data to U=0 and T=1. Activating the bell
will check the bell sensor; A & P should both equal 1 when the bell is on
4.12.8 Verify Operation of Ground Fault Testers (GFTs):
All LEDs on the GFT units should be on steady. If the BAT 1 Fault or BAT 2 Fault LEDs are
slow-flashing then they have detected a ground condition.
The GFT can be monitored at IO & Logic View > 4) SEAR and then press the left arrow keys
once to display the GFT input. If the input shows STUCK LOW, that indicates the data wire
between the GFT and SEAR IIi is open and will need to be repaired.
If the data connection is good, the following would be displayed for GFT1
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GFT1: HL=G MD=N B1=0 B2=0.
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HL=G indicates that the GFT health is good.
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MD=N indicates that test mode=no.
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B1 & B2 = 0 shows that there are no ground faults on BAT 1 or BAT 2.
A ground can be simulated on those inputs by running a wire from the ground input of the GFT
to each BAT input, one at a time. The state of each BAT input will change to '1' if a ground is
present.
The SEAR IIi relays must function properly in order to run automated inspection tests. These
outputs are most easily tested using the SEAR menu on the GCP5000 (GCE) Display module.
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Verify SEAR IIi relays:
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Go to MENU>DIAG/MONITOR>RELAYS>GndFltTest and press ENTER.
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Then press '1' to energize the relay output. Both Ground Fault Testers' BAT FAULT
LEDs should be flashing.
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Now press '0' to de-energize the relay. The LEDs should go on steady.
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Press EXIT and then ENTER to get back into the RELAYS menu.
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Select AC Control. Press '1' to energize the relay output. AC power to the chargers
should go off, or Press '0' to de-energize the relay and be sure that AC power to the
chargers is restored
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Press "exit" until the date/time main screen is visible.
SIG-00-22-02
Version: B.1
NOTE
4-38
JUNE 2022 (Revised September 2022)
.