Power Related Problems; Table 5-2. Power Checks - Aerotech DR300 Operation & Technical Manual

DR300 Operation and Technical Manual
5.3.

Power Related Problems

The DR300 contains several power supplies that generate +5V, +12V, -12V, and the bus
supplies. Table 5-2 lists some power checks that can be made.
Table 5-2. Power Checks
Symptom
DR300 appears dead
+5 Volts low or not present
Axis will not enable and/or
no motor torque
Always disconnect main power connection before opening the DR300 chassis.
Version 1.5
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Verify power switch is on.
Verify DR300 has AC power (listen for internal fans).
The +5 Volts is used in several places.
Drive Interface Bd. P4-4 is +5V, P4-3 is common.
Rear Panel Interface Bd. P5 is +5V, P6 is common.
Check for +5 Volt short (disconnect all cables to DR300).
Check that LED's on Rear Panel Interface Bd. are ON (If a LED is OFF,
this indicates that the associated connector may have a +5 Volt short.
Note: DR300 uses resettable fuse for external 5V supply
connections. Reset by turning off power for 30 seconds.
Check +5 Volt supply.
Check Bus supply fuses (see system drawing).
Note: Bus supply fuse failure usually indicates a more serious
problem (contact Aerotech).
Aerotech, Inc.
Troubleshooting
Possible Causes
WARNING
5-3