YASKAWA SGMJV User Manual page 76

3 Wiring and Connection
3.4.2 Sequence Output Circuit
(2) Line Driver Output Circuit
CN1 connector terminals, 17-18 (phase-A signal), 19-20 (phase-B signal), and 21-22 (phase-C signal) are
explained below.
These terminals output the following signals via the line-driver output circuits.
• Output signals for which encoder serial data is converted as two phases pulses (PAO, /PAO, PBO, /PBO)
• Origin pulse signals (PCO, /PCO)
Connect the line-driver output circuit through a line receiver circuit at the host controller.
(3) Safety Output Circuit
The external device monitor (EDM1) for safety output signals is explained below.
A configuration example for the EDM1 output signal is shown in the following diagram.
 Specifications
Type
Output
Electrical characteristics of EDM1 signal are as follows.
Maximum Allowable Voltage
Maximum Allowable Current
Maximum Voltage Drop at ON
Maximum Delay Time
3-26
Line Receiver Circuit Example
SERVOPACK
SERVOPACK
CN8
Signal Name Pin No.
CN8-8
EDM1
CN8-7
Items Characteristic
50 mADC
Host Controller
Applicable line receiver:
SN75ALS175 or the
equivalent
220 to
470 Ω
Host controller
24 V Power Supply
8 EDM1+
7
EDM1-
0 V
Output
Status
Both the /HWBB1 and /HWBB2 signals are working nor-
ON
mally.
The /HWBB1 signal, the /HWBB2 signal, or both are not
OFF
working normally.
−
30 VDC
−
1.0 V Voltage between EDM1+ to EDM1- at current is 50 mA.
Time from the change in /HWBB1 or /HWBB2 until the
20 ms
change in EDM1.
Meaning
Remarks