Specifications

14
Curtis 1310 Manual, Rev. B
2 — INSTALLATION & WIRING: I/O Signal Specifications
INPUT/OUTPUT SIGNAL SPECIFICATIONS
The input/output signals wired to the J1, J2, J3, and J4 connectors can be
grouped by type as follows; their electrical characteristics are discussed below.
— digital inputs
— digital outputs
— analog inputs
— analog output
— power
— communications.
Digital inputs
These signal lines can be used as digital (on/off) inputs. Normally, the On signal
is made by a connection direct to B+ and Off is direct to B-. Inputs 1 through
18 will pull low (Off) if no connection is made. Inputs 19 through 22 and the
encoder inputs will pull high (On) if no connection is made.
Inputs 1 through 18 are associated with driver outputs. Inputs 19 through
22 and the encoder inputs are low voltage “TTL” level inputs and can be used
when connecting to other low voltage (5V) logic circuits or sensors. The encoder
channels are normally used for pulse count inputs from quadrature (2-chan
-
nel) encoders, but they may also be used as 5V logic-level digital inputs. Take
careful note of their much lower voltage range.
DIGITAL INPUT SPECIFICATIONS
LOGIC
INPUT VOLTAGE ESD
SIGNAL NAME PIN THRESHOLDS
IMPEDANCE RANGE TOLERANCE
Input/Output 1–16 J1-1 24–48V models: 24–48V models: 24–48V models: ± 8 kV
thru Low = 7.5 V about 5.4 k
Ω -0.5 to 64 V (air discharge)
J1-16 High = 15.8 V 48–96V models:
48–96V models:
48–96V models: about 22 k
Ω -0.5 to 124 V
Low = 14.1 V
*
see note below
High = 29.7 V
Input 17–18 J1-17 24–48V models: 24–48V models:
24–48V models: ± 8 kV
thru Low = 7.5 V about 5.4 k
Ω -0.5 to 64 V (air discharge)
J1-18 High = 15.8 V 48–96V models:
48–96V models:
48–96V models: about 22 k
Ω -0.5 to 124 V
Low = 14.1 V
High = 29.7 V
Input 19–22 J1-19 All models: All models:
24–48V models: ± 8 kV
thru High = 3.8 V about 4.5 k
Ω -0.5 to 64 V (air discharge)
J1-22 Low = 1.8 V 48–96V models:
-0.5 to 124 V
Encoder 1A,1B,2A,2B J4-1 Rising edge= All models: All models: ± 8 kV
thru 3.0 V about 4.7 k
Ω -0.5 to 5.5 V (air discharge)
J4-4 Falling edge=
2.0 V
Tolerance of above values ±5%.
*
Outputs 14 and 15 on Model 1310-5210 have over 200 kΩ output impedance.