7.3 Quick replacement
PR200 is equipped with plug-in terminal blocks which enable
quick replacement of the device without disconnecting the
existing wiring (Fig. 7.9).
To replace the device:
− power off all connected lines including power supply
− remove all detachable parts of the terminal blocks
− replace PR200
− connect detachable parts with existing wiring to the device
Fig. 7.9 Quick replacement