Kollmorgen
Commissioning
SILVER
LINE
®
Product Family
5-3
5.1.2.6 LEDs
Two green, light-emitting diodes (LEDs) are provided on the front of the S/O, placed one above the other.
The bottom LED indicates that bus power is applied. The top LED indicates that the amplifier is OK.
Overvoltage and overcurrent faults disable the amplifier and turn off the amplifier-OK LED. Disabling the
S/O resets the fault condition and turns the LED on.
5.1.2.7 Faults
The S/O includes protection against excessive voltage and excessive current. If you exceed the S/O bus
voltage (J1-4 and -5), the amplifier will fault. The enable signal (J6-5 and -6) must be removed and
reapplied to reset the unit. The most common cause of this fault is bus voltage elevation due to regenerative
energy. The SPSR power supply provides a "REGEN" unit which can dissipate up to 20 watts of
regenerative energy. If you are using an SPSR and you are still experiencing this fault, the regen fuse
(located in the regen unit) may have opened. Replace this fuse with the rating specified in Chapter 4. If this
fuse opens regularly, your system is probably overloading the regen unit.
If you need to add a regen unit to your system, Kollmorgen supplies the SPSR-4008-RGN, a stand-alone
regenerative dissipation unit. If you are already using an SPS power supply, the SPSR-4008-RGN can be
mounted directly to the SPS. (This effectively converts the SPS to an SPSR.) If you are using the stand-
alone regen unit, that unit can be converted to run on a 24 VDC system by removing jumper W1. This
changes the regen trip level to approximately 28 volts.
Removing W1 reduces the
regen trip voltage to 28 VDC.
Do not remove W1 if the bus
voltage is greater than 28
VDC. Doing so will overload
the regen unit.
If you exceed the S/O continuous current rating (for example, 8 ADC for an SO-4008) for more than a few
seconds, the amplifier will fault. The enable signal (J6-5 and -6) must be removed and reapplied to reset the
unit. If this happens regularly, your amplifier may be too small for the application.
5.1.3 Start up the Velocity Controller
This section describes how to start up the velocity controller. Before proceeding in this section, you should have
completed the "Start up the Current Controller" section above. Disable the S/O. Reconnect J6-3 and -4 to the option
PCB (these were disconnected in the procedure above).
5.1.3.1 Check-out the Encoder
Connect a meter to Tach Monitor (J201-5, -6). Rotate the motor by hand. Verify that the tach changes as
you rotate the motor. Rotate the motor both directions and verify that the tach changes sign. Do not proceed
until your system passes this test. Running a velocity loop system with the encoder disconnected or
improperly connected may cause the motor to "run away," a condition where the motor accelerates to full
speed without control.
CAUTION
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