Gilderfluke&Co Sd-50 Audio & Show Controllers User Manual

Page 36

1. When running ONLY ServoMotors on the ‘" J6’ connector, the Sd-50/8 or Sd-50/40 is run from a

typical twelve to twenty-four vdc
power supply, just as you would
normally do. A separate five vdc
power supply used to provide power
to the ServoMotor(s). Select ‘exter-
nal’ power for the ‘" J6’ port by
moving the

switch

on the bottom of

the Sd-50/xx. Run positive five vdc
into pin #10 of the ‘" J6’ connector
and the ground side of the five vdc
power supply into pin #1 of the ‘"
J6’ connector. The positive five vdc
is also connected to the power and
ground pins of the ServoMotor. The
‘grounds’ of both power supplies
must be connected together. The
ServoMotor’s PWM ‘control’ pin is
attached to the output pin that is be-
ing used for providing the ServoMo-
tor the PWM control signal it needs. Since the ‘" J6’ port is running on the external five vdc power,
this largely precludes using any of the other pins on this port for anything other than ServoMotor
PWM outputs.

2. When running a mix of ServoMotor(s) and other functions on the ‘" J6’ connector, the ServoMo-

tors must be protected from the 12 to 24 vdc that is running the other functions. The Sd-50/8 or Sd-
50/40 is run from a typical twelve to
twenty-four vdc power supply, just
as you would normally do. A sepa-
rate five vdc power supply used to
provide power to the ServoMotor(s).
Select ‘Internal’ power for the ‘" J6’
port by moving the

switch

on the

bottom of the Sd-50/xx. The positive
five vdc and ground pins from the
five volt power supply are connected
to the power and ground pins of the
ServoMotor. The ‘grounds’ of both
power supplies must be connected
together. The ServoMotor’s PWM
‘control’ pin is attached to the output
pin that is being used for providing
the ServoMotor the PWM control
signal it needs through a small sig-
nal diode. Typical diodes are
1N4148 or 1N914, but almost any diode will work. The ‘cathode’ end of the diode (indicated by the
stripe) is towards the connector on the Sd-50/8 or Sd-50/40. This diode keeps the higher voltage
that is running the Sd-50/8 or Sd-50/40 from getting to the ServoMotor. Any input/output pins on
this port that are not being used for ServoMotor PWM can be used for normal input or output.

ServoMotors are typically run at somewhere around five vdc. If your ServoMotor is made to run

at a different voltage than this (twelve to twenty-four vdc), it will likely be a very big, strong, and

(to Sd-50)

Set switch on bottom of Sd-50 for
ʻexternalʼ power for the ʻ1/4 J6ʼ port

Resistor may be needed by
some ServoMotors

Ground for Sd-50's and Servo-
Motor(s) must be connected

Motor

typ. of 8 Servos

gnd

+sup

1/4 J6

5 vdc Power

12 to 24 vdc Pwr

Power to Sd-50

1KΩ

Resistor

Common Ground

ServoMotor Power

PWM (control)

Common Ground

(to Sd-50)

Resistor may be needed by
some ServoMotors

Ground for Sd-50's and Servo-
Motor(s) must be connected

Set switch on bottom of Sd-50 for
'internalʼ power on the ʻ1/4 J6ʼ port

Motor

typ. of 8 Servos

gnd

+sup

1/4 J6

5 vdc Power

12 to 24 vdc Pwr

Power to Sd-50

1KΩ

Resistor

Common Ground

Diode

ServoMotor Power

PWM (control)

Common Ground

Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485

Sd-50/xx Manual / October 29, 2012 2:29 PM / page 36 of 120