YASKAWA Sigma-V Series User Manual page 89

(3) Line Driver Output Circuit
CN1 connector terminals, 33-34 (phase-A signal), 35-36 (phase-B signal), and 19-20 (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.
(4) 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 Signal Name
Output EDM1
Electrical characteristics of EDM1 signal are as follows.
Items
Maximum Allowable Voltage
Maximum Current
Maximum Voltage Drop at ON
Maximum Delay Time
Line Receiver Circuit Example
SERVOPACK
SERVOPACK
CN8
8 EDM1+
7
EDM1-
Output
Pin No.
Status
ON
CN8-8
CN8-7
OFF
Characteristic
30 VDC
50 mADC
1.0 V
20 ms
3.5 Examples of Connection to Host Controller
Host Controller
Applicable line receiver:
SN75ALS175 or the
equivalent
220 to
470 Ω
Host controller
24 V Power Supply
0 V
Meaning
Both the /HWBB1 and /HWBB2 signals are working nor-
mally.
The /HWBB1 signal, the /HWBB2 signal, or both are not
working normally.
Remarks
−
−
Voltage between EDM1+ to EDM1- at current is 50 mA.
Time from the change in /HWBB1 or /HWBB2 until the
change in EDM1.
3
3-41