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ISP SERIES
INSTALLATION AND OPERATION MANUAL
INSTALLATION & SETUP (CONT.)
GPIO CONFIGURED AS OUTPUT WITH OPEN COLLECTOR:
Used for:
1. 1Hz Heartbeat Function
2. Amplifier Fault Indication
3. Amplifier Temperature Warm
4. Amplifier Temperature Hot
5. Consult online manual for added functions
GPIO CONFIGURED AS OUTPUT WITH OPEN COLLECTOR INTERNAL PULLUP:
Used for:
1. 1Hz Heartbeat Function
2. Amplifier Fault Indication
3. Amplifier Temperature Warm
4. Amplifier Temperature Hot
5. Consult online manual for added functions
Max sinking current = 125mA
Max Collector Emitter Voltage = 48V
The GPIO's number, it's required function and its' active high or low signaling states are configured in webpage.
The GPIO's number, it's required function and its' active high or low signaling states are configured in webpage.
Internal
Logic
Coil Flyback
Protection
Overcurrent
Protection
GPIO 1,2,3,4
TTL INPUT
ISP DEVICE
SCADA System
GND
GND
Hi-Z
Internal
Logic
+3V3
100k
Internal
Logic
Coil Flyback
Protection
Overcurrent
Protection
GPIO 1,2,3,4
Relay
Vcc
ISP DEVICE
Example Relay Circuit
GND
To External Circuit
+
-
9