PSCU/4 Manual Ver 2.0

PSCU/4 Manual Ver 2.0
Release 08/2007 Ver. 2.0
Installation Instructions: PSCU/4 Control Unit
PSCU/4 Control Unit
Installation Instructions
INTRODUCTION
PSCU/4 control units are designed to be used with Tapeswitch pressure-sensitive
sensors, such as ribbon switches, sensing edges, bumpers, and presence4sensing switching mats, in control or low risk safety applications. For control
applications, either two wire (i.e. single lead) sensors or four wire (i.e. fail-safe
lead) sensors can be used. For low risk safety applications, only sensors with failsafe wiring should be used.
PRODUCT DESCRIPTION
The unit operates from a 24 Vdc supply. This supply operates the sensor and
control circuitry. The unit is housed in a DIN rail mounting enclosure with 16
integral terminals. This unit is intended to be mounted in an existing electrical
enclosure on the machine. This existing enclosure must be sealed to a minimum
rating of IP54. See figure 1 for unit dimensions.
This unit can be used to monitor a sensor (or several sensors connected in series).
Refer to attached diagrams. The sensor is effectively a normally open switch.
When the sensor is actuated, i.e. pressure is applied to it, the switch closes
causing the output relay to de-energize and therefore the output contacts to
change state. The output is a set of volt-free changeover relay contacts.
The unit provides a manual or auto reset function. In manual reset mode, the reset
function provides start and restart interlock functions as follows:
Start Interlock - When power is applied to the system, the output relay energized
until the reset signal has been applied.
Restart Interlock - Once the sensor has been actuated and the output relay has
been de-energized, it cannot be re-energized until the reset signal has been
applied.
In auto reset mode, the output relay will be energized whenever power is applied
to the system and the sensor is clear.
In manual or auto reset, the output relay will not energize while the sensor is
actuated. If a short circuit or open circuit fault occurs in a four wire sensor, the
output relay will not energize.
INSTALLATION (see figure 2)
Power Supply - Connect 24 Vdc to terminal 9, and 0 Vdc to terminal 11 as shown
in Figure 2. Maximum power consumption is 6VA.
Sensor Connection - For two-wire sensors, connect one sensor wire to terminal
1, connect the other sensor wire to terminal 2, jumper terminal 1 to terminal 16,
and jumper terminal 2 to terminal 15. For four-wire sensors see Figure 2 and Table
1 for sensor connections.
Reset Connection - For manual reset, connect a momentary, normally-open
switch across terminals 3 and 4. For auto reset, connect a jumper across terminals
3 and 4.
Output Connection - Connect the output contacts into the machine control
system to provide required function, terminals 5, 6, 7, and 8.
Figure 2
TAPESWITCH CORPORATION
100 Schmitt Boulevard
Farmingdale, New York 11735
1
Phone: 631-630-0442
Fax: 631-630-0454
www.tapeswitch.com
Release 08/2007 Ver. 2.0
Installation Instructions: PSCU/4 Control Unit
INTERCONNECT DIAGRAMS, DAISY CHAINED/SERIES CONNECTION
Multiple Mats with 4 Conductor Standard Color Coded Lead Wire
MAT 1
A
B
C
D
MAT 2
MAT 3
MAT N
BLACK
YELLOW
BLACK
YELLOW
BLACK
YELLOW
BLACK
RED
WHITE
RED
WHITE
RED
WHITE
RED
YELLOW
WHITE
NOTE: Maximum Number of Mats Limited to 100 Square Feet
Multiple Mats with Optional 2 Conductor Standard Color Coded Lead Wire
MAT 1
A
B
C
D
MAT 2
MAT 3
MAT N
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
BLACK
WHITE
Multiple Sensing Edges, Bumpers and Ribbon Switches with Color Coded Wire
A
B
C
D
BLACK
BLK
BLK
W HT
W HT
Edge/sensor 1
W HITE
BLACK
W HITE
BLK
BLK
W HT
W HT
Edge/sensor 2
W HITE
Edge/sensor N
BLACK
Edges and Bumpers Can Be Ordered with Lead Wire Exiting Both Ends to Facilitate Easy Series Connection
NOTE: Maximum Number of Edges, Bumpers, and Ribbon Switches Limited to 200 Feet
Multiple Sensing Edges, Bumpers and Ribbon Switches with Non-Color Coded Zip Cord Wire
A
B
C
D
RIBBED
RIB
RIB
SMO
SMO
Edge/sensor 1
SMOOTH
RIBBED
RIB
RIB
SMO
SMO
Edge/sensor 2
SMOOTH
Edge/sensor N
RIBBED
SMOOTH
TAPESWITCH CORPORATION
100 Schmitt Boulevard
Farmingdale, New York 11735
2
Phone: 631-630-0442
Fax: 631-630-0454
www.tapeswitch.com
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