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Section 1
General Information
Optional I/O Connections
Power-Up Procedure
2-8 Installation
Connector X4 contains the input and output connections for the BPS (Baldor Power
Supply). Connection to the X4 I/O terminal strip is optional. No connections are required
for normal operation. However, to monitor BPS status or to "Reset" the BPS you may
make some or all of these optional connections.
Status monitor output connections (Opto Isolated Outputs)
Status monitor output connections are shown in Figure 2-7. The output signals (X4-1, 2
and 3) can then be connected to an external device (referenced to X4-10). These internal
contacts close when active and apply the voltage +24VDC at the output.
The Alarm Output (X4–2) activates immediately when one of the following faults occur:
Loss of AC Power, Phase Loss (AC input), Loss of Logic Power, Bus Undervoltage,
Overtemperature or Dynamic Brake fault. The other Status Monitor outputs (X4–1 and 3)
have a 100ms delay before activation.
Note: The maximum current draw when all three outputs are active must not exceed
100mA.
Figure 2-7 Status Monitor Output Connections
Customer provided
+12VDC to +30VDC
power source
Reset connection
Connection of the Reset input is shown in Figure 2-8. This is useful to reset after a fault
condition. The reset input voltage is +24VDC (12 to 30VDC @ 10mA) and must be
applied for at least 60 ms.
Figure 2-8 Reset Input
Fault Relay connection
Fault Relay connection is shown in Figure 2-9. The fault relay output can be connected to
an external relay or other device. This internal normally closed contact opens when a
fault condition occurs. The fault list is the same as for the Alarm Output.
Figure 2-9 Fault Relay
Refer to the manual for the DBSC control MN1220.
X4 - Diagnostic
Ready
1
Alarm
Output signals are referenced
2
DB_ON
to X4-10 (100mA maximum).
3
+
CIV (+VDC)
9
CGND
–
10
X4 - Diagnostic
+
5
Reset
–
6
CREF
X4 - Diagnostic
Customer provided power source
7
Fault (+)
8
Fault (–)
+24VDC (+12 to +30VDC) @ 0.8A
Customer provided power source
+12VDC to +30VDC
115VAC @ 0.3A or
non–inductive
MN1221
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