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PRSU Series, Operating Instructions Manual (Revision 1.0)
PRSU/4 Electrical Overview
The PRSU/4 can be operated with an input voltage of +24VDC, or 24VAC. This model
features three normally-open safety relays that are triggered by the "Sensor Monitoring"
terminals (S11, S12, S21, S22). This model also features an additional normally-closed
auxiliary relay (not for safety use).
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Copyright (2021)
rights reserved. Changes, which serve technical improvements are reserved.
Figure 2: Functional Schematic (PRSU/4)
Terminals
A1
A2
13, 14
23, 24
33, 34
41, 42
S33, S34
S11, S12
S21, S22
Table 2: Device Terminals (PRSU/4)
Description
Power input (+24V
,
24V
DC
or
Power input (GND,
24V
or
Safety Relay #1
Safety Relay #2
Safety Relay #3
Auxiliary Relay (Non-Safety)
RESET Mode Control
Sensor Connection
Sensor Connection
)
AC
)
AC
4
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