Power switching elements

• Power triacs with zero crossover switching
• Protection of triacs and opto-triacs against overvoltages by Transil diodes

Output power

LA716 power output module

• 16 power channels of 230 V each (8 outputs per phase)
• Max. 10 400 W switching capacity per module

LA716I power output module

• 16 power channels of 230 V each (8 outputs per phase)
• Max. 14 720 W switching capacity per module

LA716I HP power output module

• 8 power channels of 230 V each (4 outputs per phase)
• Max. 14 720 W switching capacity per module

Temperature monitoring

There is an NTC thermistor on the heat sink for monitoring its temperature. In the event of an overtemperature, this temperature-dependent resistor issues a signal to the higher-level controller.

Fuses

LA716 power output module

• Each output is protected by a 5 A fuse in an accessible fuse holder for protection of the power triac.
• A fuse cover is provided as a shock hazard protection.

LA716I power output module

• Each output is protected by a 5 A fuse in an accessible fuse holder for protection of the power triac.
• A plexiglass cover is provided as a shock hazard protection on the front.

LA716I HP power output module

• Each output is protected by a 10 A fuse in an accessible fuse holder for protection of the power triac.
• A plexiglass cover is provided as a shock hazard protection on the front.

Diagnostics facilities

Diagnostics functions are provided as standard to detect the following faults:

• Circuit breaker triac at high resistance or internal fuse blown
• Channel fuse blown on the module
• External fault such as blown fuse, heat emitter or cable breakage