Selectable transistor outputs, Ready and brake/drive enabled circuits, Digital output circuit – Rockwell Automation 1398-DDM-xxx ULTRA 100 Series Drives Installation Manual User Manual
Page 73
Publication 1398-5.2 – PDF 1997
Interfaces
6-9
Selectable Transistor Outputs
OUTPUT 1 and OUTPUT 2 are optically isolated and short circuit
protected, active high, single ended transistor output channels. Each
channel sources a maximum of 50 mA.
READY and BRAKE/DRIVE ENABLED Circuits
Specifications for these outputs are listed in Table 6.6.
Figure 6.10 depicts a typical applications for the BRAKE/DRIVE
ENABLE outputs. Table 6.7 lists the current draw for 24VDC and
90VDC brake coils on Allen-Bradley motors suitable for use with
models 1398-DDM-005 and -005X, 1398-DDM-009 and -009X,
1398-DDM-019 and -019X.
Figure 6.8
READY and BRAKE/DRIVE ENABLED Circuits
J1
Drive
+
-
Normally
Open
Relay
Table 6.6:
READY and BRAKE/DRIVE ENABLED Output Specifications
Parameter
Description
Maximum
ON state resis-
tance
Internal resistance between J1-24 (+) and J1-25 (-) or J1-49 (+) and
J1-50 (-) when the contacts are closed.
1 Ohm
ON state current
Current flow through the relay when contacts are closed.
1 Amp
OFF state current
Leakage current from either output when the relay contacts are open.
0.01 mA
OFF state Voltage Voltage difference between the outputs with open relay contacts.
30 Volts
Figure 6.9
Digital Output Circuit
26
5
24VDC
13
6
I/O COM
I/O Pwr
J1
Drive