Troubleshooting
6-46 Manual # 42-02-1P21
TP26 MGBR, monitors status of car door bypass switch, rear door, pole 1, high = bypass off
TP27 MHDB, monitors status of hoistway door bypass switch, pole 4, high = bypass off
TP28 MHDBR, monitors status of hoistway door bypass switch, pole 1, high = bypass off
TP29 MABT, monitors status of access bypass top solid state relay ABTP U30
TP30 MABB, monitors status of access bypass bottom solid state relay ABB, U32
TP31 MTAB, monitoring for Top Access Bypass solid state relay U33. If the TAB relay is ON, the
RTAB (Rear Top Access Bypass) input will be OFF. MTAB should always be the opposite of
RTAB otherwise, the TAB redundancy fault is logged and the elevator shuts down.
TP32 MBAB, monitoring for BAB, Bottom Access Bypass, solid state relay U34.If the BAB relay is
ON, the RBAB, Rear Bottom Access Bypass) input will be OFF. RBAB should always be the
opposite of BAB otherwise, the BAB redundancy fault is logged and the elevator shuts down.
TP33 MABGR, monitoring for ABGR, Access Bypass Gate Rear, solid state relay U35. MABGR must
always be in the opposite state from MABG.
TP34 MDLR, monitoring for DLR, door locks rear, solid state relay U36. High when rear door locks
are made.
TP35 MGSR, monitoring for GSR, gate string rear, solid state relay U37. High when rear car gate
string is made.
TP36 MGS, monitoring for GS, gate string, solid state relay U38. High when car gate string is
made.
TP39 +3.3V logic voltage
TP40 V_unreg, pre-regulation board voltage supply. Nominally about 16 - 18 volts.
Table 6.7 HC-CTL-2 Board Switches
Switch Description
S1 SPA U3 reset
S2 SPB processor U7 reset
S3 (Run) Enable button, Inspection operation
S4 Test/Pretest switch. Please refer to “Test Mode” on page 1-19.
S5 Board fault reset
S6 PLD U2 reset
SW1 Inspection/Normal operation switch
SW2 Up/Down Inspection direction
SW3 Car Door Bypass
SW4 Hoistway Door Bypass
Table 6.6 HC-CTL-2 Board Test Points
Test Point Description
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