User Guide

Page 6 AXIS 225FD Installation Guide
Table 1 - I/O terminal connector block
Table 2 - LED indicators
Pin Function Description
1 Output A On the external device output terminals (A and B), there is no distinc-
tion between positive and negative (+ and -). The terminals use a pho-
tocoupler and are electrically isolated from the other internal
circuitry.
The maximum load should not exceed 100mA and the maximum volt-
age should be not more than 50V DC. Note: Connecting AC to the out-
put will damage the unit.
2 Output B
3 Digital Input 1 Connect to GND to activate, or leave floating (or unconnected) to
deactivate.
4 Digital Input 2
5 RS-485/422-A
(non-inverting)
A half-duplex RS-485/422 interface for controlling auxiliary equip-
ment.
6 RS-485/422-B
(inverting)
7GND Ground.
LED Function Color Description
1 Network Green Steady for connection to 100 Mbit/s network. Flashes for network
activity.
Amber Steady for connection to 10 Mbit/s network. Flashes for network activ-
ity.
Red Flashes rapid red, together with the Status indicator, for hardware
error.
Unlit No connection.
2 Status Green Shows steady green for normal operation.
Amber Shows steady amber during reset to factory default or when restoring
settings.
Red Slow flash for failed upgrade. Rapid flash, together with the Network
indicator, for hardware error.
3 Heater Green Steady green when the power connected is sufficient for the heater
i.e. (12V DC min 20W or 24V AC min 25VA)
Red Insufficient power for the heater.
4 Power Green Normal operation.
Amber Flashes green/amber during firmware upgrade.