ADVANCED MICRO CONTROLS INC.
10
POWER CONNECTOR AND INDICATOR LED’s
Power Connector
The SD17040C operates on 115Vac. If 230Vac is the only power available, consider using one
of the 230Vac drivers available from AMCI. Information on these drivers can be found on our
website, http://www.amci.com. If this is not an option, a step-down transformer must be
installed to power the SD17040C. The transformer must have a minimum power rating of 600
VA.
The SD17040C must be grounded for proper operation. Grounding is accomplished with the
GND pin on the power connector, and through proper bonding to the enclosure. Power con-
nections should be tight. Loose connections may lead to arcing which will heat the connector.
Phoenix Contact specifies a tightening torque of 4.4 to 5.4 lb-in (0.5 to 0.6 nM)
Indicator LED’s
The SD17040C has two indicator LED’s.
STEP/FAULT
!
!
Green:
Driver Operational
!
Flashing Green:
Driver Operational, Receiving Pulses
!
Red:
Driver Fault
(The Over Temperature and Over Current faults can be cleared with the Disable Input.)
1) Over Temperature Fault: The heatsink temperature exceeds 90°C (195°F)
2) Over Current Fault: Generally, a short exists somewhere in the system. This can be a short in the
motor or in the driver itself.
A) Phase–Phase Short: There is an electrical short between the two motor windings. The short
exists in the motor cable or in the motor itself.
B) Phase–Ground Short: One of the motor’s windings is shorted to earth ground. (The EARTH
GND terminal of the Motor Connector is used as the reference point.) The
fault can be in the motor cable or in the motor itself.
C) Back EMF: In applications with large motors and high deceleration rates, back-EMF generated
by the motor may also cause this fault.
3) Interlock Fault: The two Interlock Terminals on the motor connector are not connected with a short
jumper.
!
Flashing Red:
Current Loop Gain AUTOID Error.
There is a problem with the motor wiring or the motor
current is set to zero.
!
Flashing Red/Green @ 1Hz:
Step Violation:
The indexer sent step pulses to the SD17040C before the
driver was ready for them. The driver was disabled, in a fault condition, or had not completed its initialization
sequence on power up or reset. The stepper motor position will be invalid. The motor is not disabled and can still
be driven. While there is motion, the LED will flash at approximately 4 Hz.
!
CURRENT LOOP GAIN:
This LED is also used when the Current Loop Gain is set to AutoID. (SB2:1-
5 all turned off) When set to AutoID, the driver will determine the parameters of the attached motor and
will flash the Step/Fault LED green the number of times that the parameter should be set to. Flashing
red indicates a problem with the motor wiring or the motor current is set to zero. Further information
can be found in the next section of the manual, Verifying System Setup.
Power
!
!
Green:
Power is applied to the driver in the range of 95 or 132 Vac.
AC POWER
95 – 132 V
AC
50/60 Hz
GND
N
L
Содержание SD17040C
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