Product specifications
Chapter 2 I/O ports
HA-680_V04 - 23 -
(I/O signal functions for position control)
CN2-13 Encoder monitor ground: MON-GND (output)
● Function
The common for encoder monitor terminals C2-21 to 26.
● Connection
Make connection as the ground for encoder monitor terminals C2-21 to 26.
CN2-14,15 FWD pulse: FWD+, FWD- (input)
CN2-16,17 REV pulse: REV+, REV- (input)
CN2-18 +24V:+24V (input)
● Function
These ports receive position commands in the position control.
The both [line driver] and [open collector] can be used for the commands. For the [open collector]
system, both signal voltage of [+24V] and [+5V] are acceptable. The connection to the ports is different
in the selections.
Note 1: The power supply to the port [CN2-26 +24V] is user’s responsibility. The HA-655 driver does not
have an internal power supply for inputs.
Note 2: Three types of command configurations of [2-pulse],[1-pulse],[2 phase pulse] are available by
setting [parameter]→[25: command pulse input configuration]. This has no effect on the
connection specifications.
Note 3: The host circuitry for the command pulses should be negative logic circuitry in which a lower
voltage (OFF) is used as a logic "1" (active state) and a higher voltage level (ON) is used as a
logic "0" (inactive state). In the case of [2-pulse] configuration, the opt-isolator of the no input
pulses is OFF state.
Note 4: No command pulse can be accepted during servo off.
● Connection for open collector system
The details of the input ports are shown on the next page.
Specifications of the input ports are as follows:
Specifications of the input ports
(1) Power voltage:
In case of +24V: +24V±10%
In case of +5V: +5V±10%
(2) Signal current: 16mA (less than 20mA)