ICS TRIPLEX T3481 Speed tachometer module

This optically isolated input is used to enable the drive and is active high. The output stage is disabled when this input is inactive. A minimum drive capability of 4 mA is required. The user must supply 10 V - 30 V to drive this input. This input is filtered with a 1 mSec time constant low pass filter to prevent false triggering from noise. The Enable input shares a floating return (J2-38) with Inputs 1 - 6.

This terminal is the floating common

 return for the six optically isolated digital inputs and the optically isolated Enable input. +24 VDC RTN, +24 VDC (Output) J2-39, J2-40 These two connections provide an auxiliary floating power supply for the user. This output is 24 Vdc ± 10 % and is short circuit protected at 100 mA nominal. The maximum load limit for all connections to this supply is 80 mA. + 24 VDC RTN is not connected to Input RTN.

The PC830 requires an external 

12 - 24 VDC power source for the outputs. This power source must be capable of supplying at least 150 mA. Outputs J2-42, 43, 44 These optically isolated outputs are current sourcing at 0 to 50 mA maximum. External output supply should be limited to 30 V. These outputs are short circuit protected. Current folds back to about 25 mA during a short circuit. The external output supply (J2-41) is shared by the three outputs.

                                                                        

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