YASKAWA SGM Series User Manual page 66

J Input Signals and Their Application
Signal 1CN Pin No.
Name
N-OT 8
P-OT 7
+24V IN 6
9
DEC
10
EXT
BAT 14
BAT0 15
J Input Circuits
The input signals are the same as those for the incremental encoder (See 4.4.2 "1CN I/O Connector
Terminals").
J Output Signals and Their Application
Signal 1CN Pin No.
Name
ALM 3 (4)
BK 1 (2)
Table 4.9 Input Signals
Reverse drive prohibited Connect to the appropriate forward or reverse limit switch signal
(Reverse overtravel) for linear or other types of drive. The signals are CLOSED during
normal operation and are OPEN when the limit switch is operated.
Forward drive prohibited
(Forward overtravel) This function can be canceled with user constant Cn-0001 bits 2
and 3. Always N-OT or Always P-OT can also be set.
24 V This is the power supply input for pins 7, 8, 9, and 10 of 1CN (I/O).
The user must provide the 24 VDC (50 mA min.) power supply. A
12 V power supply can also be used.
Zero point return This signal is the deceleration LS input when the motor returns to
deceleration LS the zero point. The signal is CLOSED on the LS.
The polarity can be reversed with user constant (CN−0014 bit 12).
In this case, the signal will be OPEN on the LS.
External latch input This signal is the latch signal input for external signal. External
signal will be latched when this signal is CLOSED.
Backup battery + input This terminal connects to the backup battery used when power to
the absolute encoder is OFF.
Backup battery − input
The voltage is 3.3 to 4.5 V. (The user must supply the battery.)
Table 4.10 Output Signals
Servo Alarm Turns OFF when an error is detected.
Stays OFF until communication connection completes (CONNECT
command) when the control power is ON.
See 5.4.2 "Error Detection Function" for further details.
Brake Interlock Output Outputs the timing signal for the holding brake signal.
4 -17
4.5 Connecting an Absolute Encoder
Description
Description
4