Isolated Output
Specification of the isolated GPIO output ports
Isolated Output Simplified schematic
The output port implements an isolated contact output.
DC characteristics>
| Parameter | Conditions | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| Current | 100 | mA | |||
| Differential voltage | Open state | -30 | 30 | V | |
| Closed state @ 1 mA | 0.4 | V | |||
| Closed state @ 100 mA | 1.0 | V | |||
| DC isolation voltage | 250 | V | |||
| AC isolation voltage | 170 | VRMS |
Note: The output port in the closed state has no current limiter, the user circuit must be designed to avoid excessive currents that could destroy the output port.
Note: The output port remains in the OFF-state until it is under control of the application.
AC characteristics
| Parameter | Min. | Typ. | Max. | Units |
|---|---|---|---|---|
| Pulse rate | 0 | 100 | kHz | |
| Turn-on time | 5 | µs | ||
| Turn-off time | 5 | µs |
Typical switching performance @ 25°C
| Current [mA] | Turn ON time [µs] | Turn OFF time [µs] |
|---|---|---|
| 0.5 | 2.0 | 4.8 |
| 1.0 | 2.0 | 3.9 |
| 4.0 | 2.2 | 3.3 |
| 10 | 2.3 | 2.7 |
| 40 | 2.3 | 2.7 |
| 100 | 2.3 | 2.7 |
Logical map
The state of the output port is determined as follows:
| Logical State | Output port state |
|---|---|
| HIGH | The contact switch is closed (ON) |
| LOW | The contact switch is open (OFF) |
Compatible loads
The following loads are compatible with the isolated contact output ports:
| ● | Any load within the 30V / 100 mA envelope is accepted. The power originates from an external power source or alternatively from the power delivered through the 12V and GND pins of the I/O connectors. |