www.baldormotion.com
Backplanes 5-27
MN1928
5.3.6.1 BPL010-502 - PNP outputs
An external supply (typically 24 VDC) is used to power the UDN2982 output devices, as
shown in Figure 37. When an output is activated, current is sourced from the user supply
through the UDN2982, which can source up to 75 mA per output (all outputs on, 100% duty
cycle). Connect OUT COM to the user supply GND. This will connect internal transient
suppression diodes on all outputs. If an output is used to drive a relay, a suitably rated diode
must be fitted across the relay coil, observing the correct polarity (see Figure 39). The use of
shielded cable is recommended.
OUTX(0)
DOUT0
OUT COM
6
96
pin
connector
1
9
‘X6’
NextMove ES
Control
circuitry
+5 V
‘X11’
2k2
UDN2982
TLP521-4
Backplane & opto-isolator card
User
supply
24 V
User
supply
GND
Output
Load
USR V+
USR COM
10
Figure 37 - Digital output circuit (DOUT0-7) with ‘PNP’ current sourcing module - DOUT0 shown
5.3.6.2 BPL010-503 - NPN outputs
An external supply (typically 24 VDC) is used to power the UDN2803 output devices and drive
the load, as shown in Figure 38. When an output is activated it is connected to USR COM
through the ULN2803, which can sink up to 150 mA per output (all outputs on, 100% duty
cycle). Connect OUT COM to the user supply 24 V. This will connect internal transient
suppression diodes on all outputs. If an output is used to drive a relay, a suitably rated diode
must be fitted across the relay coil, observing the correct polarity (see Figure 39). The use of
shielded cable is recommended.
OUTX(0)
USR V+
DOUT0
USR COM
6
96
pin
connector
1
10
‘X6’
NextMove ES
Control
circuitry
+5 V
‘X11’
2k2
ULN2803
TLP521-4
Backplane & opto-isolator card
User
supply
24 V
User
supply
GND
Output
Load
OUT COM
9
Figure 38 - Digital output circuit (DOUT0-7) with ‘NPN’ current sinking module - DOUT0 shown
Servo Systems Co. • 115 Main Road • P.O. Box 97 • Montville, NJ,
07045-0097 • (973) 335-1007 • Toll Free: (800) 922-1103
Fax: (973) 335-1661 • www.servosystems.com
