Reliance electric SP120 Manual De Instrucciones Y Operación página 23

Control
Terminal
H 10 V Reference Voltage for
Analog Frequency
Command
O Voltage Analog Input
Frequency Command
(0-10 V)
OI Current Analog Input
Frequency Command
(4-20 mA)
L 0 V Reference Potential for
Frequency Comand Inputs
FM Programmable Analog
Output
Analog or Pulse Output
Frequency or Motor Current
Installing and Wiring the Drive
Table 2.4 – Control Terminal and Fault Relay Terminal Descriptions
Function
Potentiometer
1 to 2 kOhm
Input OI for 4-20 mA is activated when one of the digital inputs
is set to 16{AT} via parameters C01 [
[
DIGITAL INPUT
The analog input reference can be adjusted using parameters
A11 [
SELECT
If no digital input is programmed as 16{AT}, the set values are
the sum of O and OI.
This output can be used to monitor the output frequency of the
drive (either Analog or Pulse) or the motor current. This output
is programmable using parameter C23 [
Analog Signal: The relation t/T (duty cycle) changes
proportionally with the frequency or current. The maximum
voltage of 10V (100% duty cycle) is reached when the
maximum frequency or 200% of the rated current is reached.
Parameter b81 [
factor.
Accuracy: +/- 5% for frequency , +/- 20% for current
Pulse Signal: Frequency = output frequency x b86 [
DISPLAY SCALE FACTOR
(ex. Freq = 60Hz x 60 = 3.6kHz).
Description
0-9.6 V
nominal 0-10 V
H
+
O
OI
L
PE
5].
ANALOG FREQUENCY MINIMUM
].
Analog Signal
Frequency or Current
T = 4 ms (constant)
OUTPUT FM FACTOR
], but the maximum frequency is 3.6 kHz
4-19.6 mA
nominal 0-20 mA
H H
O O
Input impedance
Input impedance
+
OI OI
10 kOhm
250 Ohm
L L
-
PE PE
1] to C05
DIGITAL INPUT
] to A16 [
ANALOG FILTER
].
OUTPUT FM
Pulse Signal (50% duty cycle)
Frequency only
T = (Variable)
] may be used as a scaling
English
PROCESS
2-9