Galil DMC-3425 Pin-Out Description, J1 RS232 Main port DB-9 Pin Male, Dcd Dtr Gnd Dsr Rts Cts

J1 RS232 Main port: DB-9 Pin Male:

PC

1DCD

2RX

3TX

4DTR

5GND

6DSR

7RTS

8CTS

9RI

Galil

1RTS

2TX

3RX

4CTS

5GND

6RTS

7CTS

8RTS

9--

Pin-Out Description

OUTPUTS

Analog Motor

Command

Amp Enable

Error

Output 1-Output 3

DESCRIPTION

+/- 10 Volt range signal for driving amplifier. In servo mode, motor command output is updated at the controller sample rate. In the motor off mode, this output is held at the OF command level.

Signal to disable and enable an amplifier. Amp Enable goes low on Abort and OE1.

The signal goes low when the position error on any axis exceeds the value specified by the error limit command, ER.

These 3 TTL outputs are uncommitted and may be designated by the user to toggle relays and trigger external events. The output lines are toggled by Set Bit, SB, and Clear Bit, CB, instructions. The OP instruction is used to define the state of all the bits of the Output port.

INPUTS

Encoder, A+, B+

A and B axis Encoder Index, I+

A and B axis Encoder, A-, B-, I-

DESCRIPTION

Position feedback from incremental encoder with two channels in quadrature, CHA and CHB. The encoder may be analog or TTL. Any resolution encoder may be used as long as the maximum frequency does not exceed 12,000,000 quadrature states/sec. The controller performs quadrature decoding of the encoder signals resulting in a resolution of quadrature counts (4 x encoder cycles). Note: Encoders that produce outputs in the format of pulses and direction may also be used by inputting the pulses into CHA and direction into Channel B and using the CE command to configure this mode.

Once-Per-Revolution encoder pulse. Used in Homing sequence or Find Index command to define home on an encoder index.

Differential inputs from encoder. May be input along with CHA, CHB for noise immunity of encoder signals. The CHA- and CHB- inputs are optional.

174 • Appendices DMC-3425