Despatch P1400+ Temperature Controller - Manual (Page 102)

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14.2 Auxiliary Inputs
Input Sampling rate: 4 per second
Input Resolution: 13 bits minimum
Input types: 4 to 20mA, 0 to 20mA, 0 to 10V, 2 to 10V, 0 to 5V, 1 to 5V.
The Full Auxiliary input in Option Slot B also supports 0 to 100mv
and Potentiometer (2K
Ω or higher).
Measurement Accuracy
(reference conditions): ±
0.25% of input span
±
1 LSD
Input resistance: Voltage ranges: 47K Ω nominal
Current ranges: 5 Ω
Input protection: Voltage input: will withstand up to 5x input voltage overload without
damage or degradation of performance in either polarity.
Current input: will withstand 5x input current overload in reverse
direction and up to 1A in the normal direction.
Isolation: Slot A has basic isolation from other inputs and outputs.
Slot B has reinforced isolation from other inputs and outputs.
Sensor Break Detection: For 4 to 20mA, 2 to 10V and 1 to 5V ranges only.
14.3 Digital Inputs
Type: Voltage-free or TTL-compatible
Voltage-Free Operation:
functions depend on model and how
configured Connection to contacts of external switch or relay:
Open = SP1, Automatic Mode or Local setpoint
selected. Minimum contact resistance = 5K
Ω ,
Closed = SP2, Manual Mode, Remote Setpoint
selected, Latching Relay, Stored Min/Max/Time reset
(edge triggered) or Tare activate (edge triggered).
Maximum contact resistance = 50
Ω .
TTL levels:
functions depend on model and how
configured 2.0 to 24VDC = SP1, Automatic Mode, Local Setpoint
selected.
–0.6 to 0.8VDC = SP2, Manual Mode, Remote Setpoint
selected, Latching Relay, Stored Min/Max/Time reset
(edge triggered) or Tare activate (edge triggered).
Maximum Input Delay (OFF-ON): 0.25 second.
Maximum Input Delay (ON-OFF): 0.25 second.
Isolation: Reinforced safety isolation from any source of
hazardous voltages.
14.4 Output Specifications
Output Module Types
Option Slot 1 Module Options: Relay, SSR drive, Triac or DC linear.
Limit Controllers have a fixed Latching Relay only.
Option Slot 2 Module Options: Relay, Dual Relay, SSR drive, Triac or DC linear.
Dual Relay option on some models only.
Option Slot 3 Module Options: Relay, Dual Relay, SSR drive, DC Linear or Transmitter
PSU. Dual Relay option on some models only.