Curtis 1222 - Input;Output Signal Specifications; Digital Inputs; Digital Input Specifications; Driver Output Specifications

Curtis 1222 Manual, os 15
13
2 9 J A N U A R Y 2 0 1 3 D R A F T
2 — INSTALLATION & WIRING: I/O Signal Specifications
INPUT/OUTPUT SIGNAL SPECIFICATIONS
The input/output signals wired to the 35-pin connector can be grouped by
type as follows; their electrical characteristics are discussed below.
— digital inputs
— driver outputs
— analog inputs
— power supply outputs
— keyswitch and coil return inputs
— communications port inputs/outputs
— encoder inputs.
Digital inputs
The digital inputs must be wired to switch to B+ (not to ground). All digital
inputs are protected against shorts to B+ or B-.
A home switch is required if encoder position feedback is used (Pos
ition
Feedback Device = 1).
DIGITAL INPUT SPECIFICATIONS
LOGIC
INPUT VOLTAGE ESD
SIGNAL NAME PIN THRESHOLDS
IMPEDANCE RANGE TOLERANCE
Interlock Input 1 9 Rising edge= 10.7 kΩ 10–65 V ± 8 kV (air
Home Input 2 10 5 V max discharge)
Interlock Input 3 11 Falling edge=
Home Input 4 12 1.5 V min
Driver outputs
The fault output shuts down the traction system if the 1222 has a fault. This
output switches B+ to the high side of the traction main contactor and EM
brake; without this signal, the system shuts down.
All driver outputs are protected against shorts to B+ or B-.
DRIVER OUTPUT SPECIFICATIONS
OUTPUT OUTPUT PROTECTED ESD
SIGNAL NAME PIN TYPE FREQUENCY
CURRENT VOLTAGE TOLERANCE
Contactor Driver 2 Low Side 16 kHz 2 A max 65 V ± 8 kV (air
Force Feedback Driver 5 Low Side 16 kHz 2 A max 65 V discharge
Fault Output 24 High Side n/a 5 A max 65 V