Sharp CP-SR421 Instrukcja Użytkownika Pobierz pdf (Strona 50)

3. SIGNALS AND WIRING

3 - 9

Note 1.

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.

If the controller does not have forced stop function, always install the forced stop 2 switch (Normally closed contact).

When starting operation, always turn on EM2 (Forced stop 2). (Normally closed contact)

Use SW1DNC-MRC2-E. (Refer to section 11.8.)

Use SSCNET III cables listed in the following table.

Cable Cable model Cable length

Standard cord inside

panel

MR-J3BUS_M 0.15 m to 3 m

Standard cable

outside panel

MR-J3BUS_M-A 5 m to 20 m

Long-distance cable MR-J3BUS_M-B 30 m to 50 m

10.

11.

12.

13.

14.

15.

16.

The wiring after the second servo amplifier is omitted.

Up to 64 axes of servo amplifiers can be connected. The number of connectable axes depends on the controller you use.

Refer to section 4.6 for setting of axis selection.

Make sure to cap the unused CN1B connector.

Supply 24 V DC ± 10% 200 mA current for interfaces from the outside. 200 mA 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 3.8.2 (1) that gives the

current value necessary for the interface.

ALM (Malfunction) turns on in normal alarm-free condition.

The pins with the same signal name are connected in the servo amplifier.

You can change devices of these pins with [Pr. PD07], [Pr. PD08], and [Pr. PD09].

Devices can be assigned for these signals with controller setting. For devices that can be assigned, refer to the controller

instruction manual. The following devices can be assigned for Q172DSCPU, Q173DSCPU, and QD77MS_.

FLS: Upper stroke limit

RLS: Lower stroke limit

DOG: Proximity dog

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.

When not using the STO function, attach a short-circuit connector supplied with a servo amplifier.

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