09/03
2-183
DC 3535/2240/1632, WC M24
9-349
Status Indicator RAPs
Initial issue
9-349 1st BTR Retract
The 1st BTR did not reach the retract position.
Initial Actions
• Clean the 1st BTR Retract Sensor (PL 5.4) and check for damage.
• Check the 1st BTR Worm Gear and Retract Shaft (PL 5.4) for breakage.
Procedure
In sequence, enter the following: dC330 [009-054] then dC330 [009-055]. The 1st BTR con-
tacts and retracts.
YN
There is +24VDC from P/J533-A16 on the I/F PWB to GND (Figure 2).
YN
Go to the +24 VDC Wirenets (Figure 2) and troubleshoot the problem.
Check the wires between P/J533 and P/J237 (Figure 2) on the 1st BTR Retract Motor for
opens, shorts, or loose connections. If the wires are OK, replace the 1st BTR Retract
Motor (PL 5.4). If the problem continues, replace the MCU PWB (PL 13.1). If the problem
continues, replace the I/F PWB (PL 9.1).
Stack dC330 input codes [004--014] (1st BTR Retract Sensor Power) and [009-203] (1st BTR
Retract Sensor). Then, in sequence, enter the following: dC330 [009-054] then dC330 [009-
055]. The 1st BTR Retract Sensor changes state.
YN
Go to Figure 1.Check the circuit of the 1st BTR Retract Sensor (PL 5.4).
Replace the MCU PWB (PL 13.1).
Figure 1 9-349 Rap Circuit Diagram - 1ST BTR Retract Sensor
A
A
B
B
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