3. SIGNALS AND WIRING
3 - 8
Note 1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
To prevent an electric shock, always connect the protective earth (PE) terminal (marked
) of the servo amplifier to the
protective earth (PE) of the cabinet.
Connect the diode in the correct direction. If it is connected reversely, the servo amplifier will malfunction and will not output
signals, disabling EM2 (Forced stop 2) and other protective circuits.
When starting operation, always turn on EM2 (Forced stop 2). (Normally closed contact)
Supply 24 V DC ± 10% 500mA current for interfaces from the outside. 500mA is the value applicable when all I/O signals are
used. The current capacity can be decreased by reducing the number of I/O points. Refer to section 3.9.2 (1) that gives the
current value necessary for the interface.
When starting operation, always turn on EM2 (Forced stop 2), LSP (Forward rotation stroke end) and LSN (Reverse rotation
stroke end). (Normally closed contact)
ALM (Malfunction) turns on in normal alarm-free condition. When this signal is switched off (at occurrence of an alarm), the
output of the programmable controller should be stopped by the sequence program.
The pins with the same signal name are connected in the servo amplifier.
This length applies to the command pulse train input in the differential line driver type. It is 2 m or less in the open-collector
type.
Use SW1DNC-MRC2-J. (Refer to section 11.7.)
Personal computers can also be connected via the CN3 connector, enabling RS-422 communication (available in the future).
Note that using the USB communication function (CN5 connector) prevents the RS-422 communication function (CN3
connector) from being used, and vice versa. They cannot be used together.
ࡄ࠰࠽࡞
ࠦࡦࡇࡘ࠲
RS-232C/RS-422ᄌ឵ࠤࡉ࡞
ផᅑຠ: ࠗࡦ࠲ࡈࠚࠬࠤࡉ࡞
DSV-CABV(࠳ࠗࡗ࠻ࡦ࠼)
RS-232Cࠦࡀࠢ࠲߳
CN3
ࠨࡏࠕࡦࡊ
11.
12.
13.
14.
This connection is not required for QD75D. However, to enhance noise immunity, it is recommended to connect LG of servo
amplifier and control common depending on the positioning module.
This diagram is for sink I/O interface. For source I/O interface, refer to section 3.9.3.
When not using the STO function, attach a short-circuit connector supplied with a servo amplifier.
Configure up a circuit to turn off EM2 when the main circuit power is turned off to prevent an unexpected restart of the servo
amplifier.
Personal
computer
Servo amplifier
RS-232C/RS-422 conversion cable
Recommended product: Interface cable
DSV-CABV (Diatrend)
To RS-232C connector
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