Specifications

20 Gear Drive, Plymouth Ind. Park, Terryville, CT 06786
Tel: [phone] Fax: [phone] http://www.amci.com
SPECIFICATIONS
2
15
Detectable Faults and Errors (continued)
Major Faults
The other seven faults are termed Major Faults and occur when there is a hardware fault with the drive or
motor. When one of these faults occur, the Fault Output is activated, which means it doesn’t conduct current.
Power is removed from the motor and the drive ignores pulses from the indexer. These eight faults are:
h Disabled:
The Disable Input is active, or motor current is ramping up after its release.
h Reset:
The Reset Input is active, or the SD17063 has not finished initializing after its release.
h Over Temp Fault:
The temperature of the SD17063’s heat sink exceeded 95°C (200°F). This fault is
latched.
h Interlock Fault:
The two Interlock Terminals on the motor are not connected. This fault is latched
h Phase-Phase Short:
There is an electrical short between two motor windings. The short exists in the
motor cable or the motor itself. This fault is latched.
h Phase-Ground Short:
One of the motor’s windings is shorted to earth ground. (The Earth GND termi-
nal of the Motor Output Connector is referenced.) The fault can be in the motor cable or the motor
itself. This fault is latched.
h Output Bus Overvoltage:
The voltage on the ±A or ±B terminals of the Motor Output Connector
exceeded 250 Vdc. Usually caused by back-EMF when the motor is stopped quickly. This fault is
latched.
Fault Table
Table 2.4 lists the ten faults, the state of the Indicator LED’s and the state of the Fault Output.
1) The Step LED flashes when valid steps are applied to the drive through the ±DIR/CCW and ±STEP/
CW inputs. At low frequencies, the LED flashes at the rate of the applied steps. At high frequencies,
the LED flashes at a fixed rate. When a Velocity or Window Step Violation has occurred, the drive
blinks the Over Temp or Motor Fault LED’s but still accepts directional pulses and drives the motor.
Table 2.4 Fault Outputs
Clearing Latched Faults
The SD17063 will continue to indicate a latched fault even after the fault condition has ended or been
removed. The only way to clear a latched fault is by activating the Reset Input or cycling power to the drive.
Fault
Type
Indicator LED’s
Latched
Fault
Fault Output
ON (OK)
OFF (FAULT)
Step
Over
Temp
Motor
Fault
Power
Velocity Step Violation Note 1 Blink Off On Yes ON
Window Step Violation Note 1 Off Blink On Yes ON
Disabled Off Off Off On No
OFF - Turns ON within 275 mS after
the Disable Input is released.
Reset Off Off Off On No
OFF – Turns ON within 325 mS after
the Reset Input is released.
Over Temp Fault Off On Off On Yes OFF
Interlock Fault Off Off On On Ye s OFF
Phase-Phase or
Phase-Ground Short
Off Off On On Yes OFF
Output Bus Overvoltage Off Off Off Blink Yes OFF