What happens when the PI200 integrators are disabled?

Disabling an integrator does not disable the corresponding controller output.

The proportional response remains active, while the low-frequency integrator gain is limited.

This makes it possible to position the system near the desired lock point with the integrators disabled, then enable the FAST and SLOW integrators when closing the feedback loop.

The Integrator Enable inputs use the following logic levels:

• LOW: 0 to 0.8 V
• HIGH: 2.2 to 4.5 V