User manual

PS-2000B Series User Manual

1–9

Chapter 1 – PS-B Unit Basics

• Be sure to hold the input level for 1.5 seconds or longer when using

general signal input (DIN); otherwise, the signal may not be detected.

• Be sure that the voltage values between terminals will not exceed

the rated input voltage. If these values are too high, a unit break-

down may occur.

• Sink/Source-type input prevents polarity reversal problems. (DIN (-)

and RST (-) can become positive, and DIN (+) and (RST (+) can

become negative.) Be sure that the input voltage does not exceed

the rated range.



 External Output Signal (DOUT)

• Be sure to operate the PS-B unit only within the maximum load cur-

rent range. Excessive load current can cause a unit breakdown.

• Be sure to include terminal to terminal voltage values in your system

design calculations for load current and load voltage. When the load

current becomes large, a 1.5V (max) drop will occur between the

terminals.

• Be sure to connect the protective diode shown in the above diagram

(*1) when connecting an inductive load

Rated Load Voltage DC12V to DC24V

Maximum Load Current 100 mA/point

Maximum Voltage Drop between Terminals 1.5V (at 100-mA load current)

Isolation Method Via a photocoupler

(Interface Circuit)

(Connection Example)

Cable

PC357

D-sub 25-pin connector

4.7k

Ω

SSTA06

DOUT0(-), DOUT1(-)

DOUT2(-), DOUT3(-)

DOUT0(+), DOUT1(+)

DOUT2(+), DOUT3(+)

DC12V to

DC24V

Load