SP Fault Codes - Safety Processor Diagnostics Section
©Vertical Express 3-44 Printed in USA April 2020
This manual shows only the parameters that have an operational relevance to the ICON32. The UIT may have
additional parameters available, which should not effect the controller operation.
2723
A corrupted bottom hoistway access CAN message was
received.
—
2724 A corrupted main CPU CAN message was received.
• Check Car CAN loading, connections and cable routing.
• Indicates noise on the Car CAN channel or failing com-
munication chip on the CPU.
2725 A duplicate TSMC Node was detected. • Verify that there is only one TSMC connected.
2726 A duplicate car top node was detected.
• Verify that there is only one DPIA connected.
• Perform SPC, then TECC the nodes.
2729 A car CAN channel bus Off failure. • Check the car CAN termination.
2730 A hall CAN channel bus Off failure. • Check the hall CAN termination.
2731 An input failure was detected. —
2732 A programming jumper was enabled. —
2733
A/C peak reference timeout – The SP has lost A/C power, so the
A/C inputs cannot be sampled.
• Failed device on the IOF Card.
2734 A relevel with FAST solenoid detected. —
2735 Car top inspection node crosscheck error. • Check DPIA connections.
2738 TSRCPM lost during output test.
• Failing input/output on the IOF Card - Try RFL, TFR, and
cycle INSP to reset.
• Verify that the valve solenoid wiring matches the wiring
diagrams.
2739 TSMC message was not received at power ON.
• Check power to the selector. Check Car CAN channel.
replace TSMC.
2740 Car top inspection message was not received at power ON. • Check Car CAN channel and DPIA Card.
2741 A corrupted TSMC Node A terminal message.
• Check Car CAN loading, connections, and cable routing.
• Indicates noise on the Car CAN channel or failing com-
munication chip on the TSMC.
2742 A corrupted TSMC Node A version message.
• Check Car CAN loading, connections, and cable routing.
• Indicates noise on the Car CAN channel or failing com-
munication chip on the TSMC.
2743 A corrupted car top inspection CAN message. • Check Car CAN channel and DPIA Card.
2744 A corrupted top HWAC CAN message version. —
2745 A corrupted bottom HWAC CAN message version. —
2746 TSMC Node A / Node B data crosscheck error.
• Check Car CAN loading, connections, and cable routing.
• Indicates noise on the Car CAN channel or failing com-
munication chip on the TSMC.
2747 Selector B CAN communication time out detected.
• Check Car CAN loading, connections, and cable routing.
• Indicates noise on the Car CAN channel or failing com-
munication chip on the TSMC.
2748 Car Top B CAN communication time out detected. • Check Car CAN channel and DPIA Card.
2756 Car top B message timeout.
• Check Car CAN loading, connections, and cable routing.
• Indicates noise on the Car CAN channel or failing com-
munication chip on the TSMC.
2751 Duplicate Selector B node detected.
• Check Car CAN loading, connections, and cable routing.
• Indicates noise on the Car CAN channel or failing com-
munication chip on the TSMC.
2752 Duplicate car top B node detected.
• Check Car CAN loading, connections, and cable routing.
• Indicates noise on the Car CAN channel or failing com-
munication chip on the TSMC.
2756
Terminal Speed Reduction activated. Safety Processor detected
overspeed into top terminal landing.
• Check NTS magnets (polarity and position).
• Check UFS output and wiring.
Code Description (cont.) Possible Solutions
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