MSR220P

The MSR220P is an input expansion module for the modular Minotaur MSR200 family of monitoring safety relays. It can be connected to either the MSR210P or MSR211P to provide additional inputs.

Up to 10 input modules can be connected to a base unit by simply removing the terminator, included with each base unit, and connecting the ribbon cables of the neighboring module. The connecting ribbon cable of MSR220P provides power to the MSR220P as well as a check on its status. The terminators MSR220P must be inserted into the final output module. The input modules to a base unit can be either MSR220P or MSR221P in any combination or order.

The MSR220P has two independent inputs, which can be wired in one of five ways: 1N.C., 2 N.C., 3 N.C., 1 N.C. and 1 N.O. or a safety mat. When used with the MSR210 base unit, the inputs to the MSR220 are continuously pulse-checked for shorts to power, ground and across inputs. Connecting a single device (must be at least dual channel) to each input meets the requirements of category 4 per EN594-1.

Four LEDs provide status information on the inputs. Green indicates the input is closed and red indicates the input is open.