User`s manual

3-23
3
Installation and wiring
3. Installation and wiring
3) Monitor output signal
• Connect a meter (voltmeter) or recorder for monitoring speed detection values
and torque command values as shown in Figure (a) below. Use this signal only for
monitoring and not for commands to other control devices. (Output signal
accuracy is about ±10%.) Each monitor output signal cable should be a shielded,
twisted pair cable with the analog common (L--- connector pin No. 20, 49).
Connect the cable shield to ground (
) on the robot driver side. (The I/O
connector case of the robot driver is internally connected to the ground.)
AO1,
AO2
L
(a) Monitor output signal connection
D/A converter
Shielded cable
Logic ground
Voltmeter
Connector
case
Robot driver
• The impedance of the load to connect to this monitor signal should be 3k
Ω
or
more.
Do not connect the monitor output signal (AO1, AO2) to the common (L) or
another power supply. The robot driver may fail.
• Electrical specifications for monitor output signals are shown in the following
table.
Item Unit Specifications
Output voltage V 0 to ±3.0
Load impedance k
Ω
3.0 or more
Output voltage accuracy % ±10 or more
Output signal delay time ms Approx. 1