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)