2-14 Hardware Overview
Motion Coordinator Euro205(X)
Trio Motion Technology
Amplifier Enable (Watchdog) Relay Output
An internal relay contact is used to enable external amplifiers when the control-
ler has powered up correctly and the system and application software is ready.
The amplifier enable is a single pole relay on the Euro205 and a solid-state relay
on the Euro205X with normally open contacts. The enable relay will be open cir-
cuit if there is no power on the controller OR a following error exists on a servo
axis OR the user program sets it open with the WDOG=OFF command.
The amplifier enable relay may, for example, be incorporated within a hold-up
circuit or chain that must be intact before a 3-phase power input is made live.
Amplifier Enable Output
Note:
ALL STEPPER AND SERVO AMPLIFIERS MUST BE INHIBITED WHEN THE
AMPLIFIER ENABLE OUTPUT IS OPEN CIRCUIT
0v
24v
Amplifier
Enable 1
Amplifier
Enable 2
V+
V -
0v
Enable
VIN +
VIN -
SERVO
AMPLIFIER
To other axis enables
Trio Controller