Brother RH-981A Service Manual page 104

5. Connectors to be attached to PMD PCB for θ axis
P1 [RPM] (JAPAN SOLDERLESS TERMINAL MFG. CO., LTD. VHR-6N)
Pin no.
1 θ-axis PM driving current (RA)
2 θ-axis PM driving current (RB)
3 θ-axis PM driving current (RC)
4 θ-axis PM driving current (RD)
5 θ-axis PM driving current (RE)
6 -
P2 [DC55] (JAPAN SOLDERLESS TERMINAL MFG. CO., LTD. VHR-2N)
Pin no.
1 +55V
2 0V (P0V)
P3 [CONTROL] (JAPAN SOLDERLESS TERMINAL MFG. CO., LTD. H8P-SHF-AA)
Pin no.
1 θ-axis PM clock signal
2 θ-axis PM direction signal
3 θ-axis PM save signal
4 θ-axis PM excitation signal
5 +5V
6 +5V
7 0V
8 0V
Signal name
Signal name
Signal name
Probable symptoms due to poor contact
• Needle bar motion is not correct.
• θ-axis home position can not be found.
• Error code E52 or E82 appears.
Probable symptoms due to poor contact
• Feed bracket does not move.
• Home position can not be found.
• Error code E80 appears.
Probable symptoms due to poor contact
• Needle bar motion is not correct.
• θ-axis home position can not be found.
• Error code E52 or E82 appears.
RH-981A
5. POWER SUPPLY EQUIPMENT
96