ElmoMC SimplIQ Analog Servo Amplifiers-Flute Installation - Manual (Page 26)

Flute Installation Guide Servo Control Operation
MAN-FLUIG (Ver. 2.301)
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26
4.5. External Current Limit - Peak (ECLP)
The peak current limit of the Flute amplifier can be scaled down by an external voltage or by an
external resistor connected between pin J2/3 (ECLP) and pin J2/2 (ECLRET).
4.5.1. External Voltage
An external positive voltage (0 to 3.75 V) to terminal J2/3 (ECLP) in reference to terminal J2/2
(ECLRET) will control the peak current limit from zero to Ip(nom).
V
ECLP
Ip(new) =
3.75V
* Ip(nom)
V
ECLP
Ip(new) =
3.75V
* Ip(nom)
• The voltage is internally clamped to 3.75 V whenever the external V
ECLP
is higher than
3.75 V.
• The external voltage source must be able to source/sink at least ±0.4 mA.
• The maximum absolute V
ECLP
is 12 V.
4.5.2. External Resistor
Connect an external resistor between terminal J2/3 (ECLP) and terminal J2/2 (ECLRET). The
resistor value is given by:
(Kohm) = 12.5 * R
ECLP
Ip(new)
Ip(nom)
- 1 (Kohm) = 12.5 * R
ECLP
(Kohm) = 12.5 * R
ECLP
Ip(new)
Ip(nom)
- 1
• 0 <
RECLP
< 11.4 K (1/8 Watt)
• At R
ECLP
greater than 11.4K, the current limit will be internally clamped to the nominal
value.
• I
P(nom)
is the nominal peak current limit of the amplifier.