Electro Cam 5000 Series - Manual (Page 25)

3-13 Wiring
Transistor Array Chip Layout on PS-4100-12-N32 Sinking Output Rack
PS-4100-12-P32
ULN-2813
ULN-2813
ULN-2813
ULN-2813 UDN-2580
UDN-2580
UDN-2580
UDN-2580
PS-4100-12-N32
ULN-2813
ULN-2813
ULN-2813
ULN-2813
The output circuits of the Sinking and Sourcing output boards are powered
through the "User Power Fuses." If the outputs on these boards are
malfunctioning, check that both fuses are good before investigating
the transistor array chips. If the fuses are good, the "User Power LED"
will be lit. When either fuse is blown, the LED will not light and all 32 outputs
will be dead. Verify that "User DC Power" is present.
The transistor array chips and jumper blocks used on the Sinking board are
socketed for field replacement. In the event of a wiring error or accidental
short circuit, it is possible to damage one or more array chip. In these
situations, replacing the ULN-2813 chip(s) will usually correct the problem.
The orientation of the these chips is critical with respect to their notched
ends. Insure that all chips are oriented in the direction shown in the
illustration to the left.
The jumper blocks installed in the sockets next to the terminal strips do NOT
short together all 9 sets of parallel socket holes - one set is left open. Insure
that the open set of holes is at the correct end of the corresponding socket
as pictured in the illustration to the left. A connection between these two
holes will short out the "User DC Power" supply and cause one of the
"User DC Power Fuses" to blow.
Part Numbers
Sinking Transistor Array Chip: E.C. PT# PS-9011-2803
Generic PT# ULN - 2803
16 Pin Dip Jumper Block: E.C. PT# PS-9006-0015
The output circuits of the Sinking and Sourcing output boards are powered
through the "User Power Fuses." If the outputs on these boards are
malfunctioning, check that both fuses are good before investigating
the transistor array chips. If the fuses are good, the "User Power LED"
will be lit. When either fuse is blown, the LED will not light and all 32 outputs
will be dead. Verify that "User DC Power" is present.
Two types or transistor array chips are used on the Sourcing board. They
are all socketed for field replacement. In the event of a wiring error or
accidental short circuit, it is possible to damage one or more array chip. In
these situations, replacing the UDN-2580 chip(s) will usually correct the
problem. The orientation of the array chips is critical with respect to the
notched end of the chips. Insure that all chips are oriented as shown in
the illustration to the left.
Part Numbers
Sourcing Transistor Array Chip: E.C. PT# PS-9011-2580
Generic PT# UDN-2580
Sinking Transistor Array Chip: E.C. PT# PS-9011-2803
Generic PT# ULN - 2803
Transistor Array Chip Layout on PS-4100-12-P32 Sourcing Output Rack
PS-5X34 System: Output Rack Transistor Array Chips