Input/Output Specifications - Curtis 1352 Manual

2 — INSTALLATION & WIRING:
1 5
6 9
10 14
1 5
6 9
10 14
Curtis 1352 eXm Manual,
I/O Signal Specifications
INPUT/OUTPUT SIGNAL SPECIFICATIONS
The input/output signals wired to the 14-pin connector can be grouped by
type as follows; their electrical characteristics are discussed below.
Digital inputs
The six digital I/O lines can be used as digital (on/off ) inputs. Normal "on"
connection is direct to B+; "off " is direct to B–. Input will pull low (off ) if no
connection is made.
signal name pin
Input/Output 1 11
Input/Output 2 12
Input/Output 3 13
Input/Output 4 14
Input/Output 5 9
Input/Output 6 10
* .
Tolerance ±5%
Because these six lines can also be used as driver outputs, it is important
to ensure that Output Driver Mode is set appropriately for each line. For each
pin that will be used as a digital input, Output Driver Mode must be set to
Input Only (see page 26). Otherwise, a direct short from the battery through
the internal driver FET will occur when the input is switched high and the
FET is turned on.
Digital outputs
The six digital I/O lines can also be used as outputs. They can be either digital
(on/off ) or Pulse Width Modulated (PWM) outputs. Each driver is active low,
meaning the output will pull low (to B–) when On. The PWM is at a fixed
frequency (16 kHz), and can vary duty cycle from 0 to 100%.
signal name pin
Input/Output 1 11
Input/Output 2 12
Input/Output 3 13
Input/Output 4 14
Input/Output 5 9
Input/Output 6 10
.
*
Tolerance ±5%
Rev. D
— digital inputs
— digital outputs
— analog inputs with virtual digital input
— power
— communication lines.
DIGITAL INPUT SPECIFICATIONS
logic
input
*
thresholds
impedance
All models: 12–36V models: 12–36V models: All models:
Low = 2.8 V about 10 kΩ
High = 6.3 V 36–80V models: 36–80V models: discharge)
about 47 kΩ
DIGITAL OUTPUT SPECIFICATIONS
&
pwm
output
frequency
current
All models: All models:
0–100% Sink 3 A
duty cycle
at 16 kHz
protected
*
voltage range tolerance
-0.5 to 50 V ±8 kV (air
-0.5 to 105 V
protected
*
voltage range tolerance
12–36V models: All models:
-0.5 to 50 V ±8 kV (air
36–80V models: discharge)
-0.5 to 105 V
esd
esd
10