PSR PAT ANTI-TWO-BLOCK Installation, Operator’s & Troubleshooting Manual page 30

INSTALLATION, OPERATOR'S & TROUBLESHOOTING MANUAL
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Connect wires # 5 & 6 back to the Console Board terminal X1:3 & 4.
Turn system power off. Check Anti-Two-Block signal in console with ohmmeter
Anti-Two-Block switch closed = 4700 Ohms ±50 0Ohms
Correct?
Disconnect wires 5 & 6 in the Console from X1:3 & 4. Check console board function by
installing a temporary resistor, 4700 Ohms between X1:3 and X1:4. With resist or
Correct?
NO
Reconnect Wire #5 to X1:3 and Wire #6 to X1:4 in the
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Refer to Drawing 4, Section 4.
measure between X1:3 and X1:4.
Anti-Two-Block switch open => 1 Megaohm.
Refer to Drawing 4, Section 4.
Faulty wiring between cable reel and console. Possibly
NO
YES
connected alarm should be inactive.
Refer to Drawing 4, Section 4.
Defect on Console board. Replace Console
board. Refer to Drawing 8, Section 4 and
Replacement console board.
Console.
Refer to Drawing 8, Section 4.
End
the junction box.
Check cable.
ANTI-TWO-BLOCK