ElmoMC SimplIQ Analog Servo Amplifiers-Flute Installation - Manual (Page 25)

Flute Installation Guide Servo Control Operation
MAN-FLUIG (Ver. 2.301)
www.elmomc.com
25
4.4. External Current Limit - Continuous (ECLC)
The continuous current limit of the Flute amplifier can be scaled down by an external voltage or
by an external resistor connected from pin J2/1 (ECLC) to pin J2/2 (ECLRET).
4.4.1. External Voltage
An external positive voltage (0 to 3.75 V) to terminal J2/1 (ECLC) in reference to terminal J2/2
(ECLRET) will control the continuous current limit from zero to Ic(nom).
V
ECLC
IC(new) =
3.75V
* Ic(nom)
V
ECLC
IC(new) =
3.75V
* Ic(nom)
• The voltage is internally clamped to 3.75 V whenever the external V
ECLC
is greater than
3.75 V.
• The external voltage source must be able to source/ sink at least ±0.4 mA.
• The maximum absolute V
ECLC
is 12 V.
4.4.2. External Resistor
Connect an external resistor between terminal J2/1 (ECLC) and terminal J2/2 (ECLRET). The
resistor value is given by:
(Kohm) = 12.5 * R
ECLC
Ic(new)
Ic(nom)
- 1 (Kohm) = 12.5 * R
ECLC
(Kohm) = 12.5 * R
ECLC
Ic(new)
Ic(nom)
- 1
• 0 < R
ECLC
< 11.4 K (1/8 Watt)
• At R
ECLC
greater than 11.4 K, the current limit will be internally clamped to the nominal
value.
• I
C(nom)
is the nominal continuous current limit of the amplifier.