West Control Solutions ProVU 4 - Manual (Page 175)

ProVU4 Controller, Profiler & Recorder/Controller - Product Manual
Page 174 Specifications 59407, Issue 1 – March 2008
Input resistance:
mV ranges : >10MΩ.
Voltage ranges: 47KΩ.
Current ranges: 5Ω.
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:
Reinforced safety isolation from outputs and inputs (except to Digital
Input B).
Sensor Break
Detection: Applicable for 4 to 20mA, 1 to 5V and 2 to 10V ranges only.
Control goes to the pre-set power value if Auxiliary Input is providing the
active setpoint source.
Digital Inputs
Digital Input Functions
Function Logic High Logic Low
Profile Run/Hold Hold Running Profile Run or release selected profile
Hold Segment Release Release from Hold Segment No Action
Profile Abort Abort Running Profile No Action
Data Recorder Stop Recording Start Recording
Internal Setpoint Select Select Local Setpoint 1 Select Alternate Setpoint
Auto/Manual Control Automatic Control Mode Manual Control Mode
Control Outputs Enable PID Control Outputs Disable PID Control Outputs
Digital Input Performance
Type: Voltage-free or TTL-compatible.
Voltage-Free Operation: Connection to contacts of external switch or relay:
Open = Logic High. Minimum contact resistance = 5KΩ,
Closed = Logic Low. Maximum contact resistance = 50Ω.
TTL levels: 2.0 to 24VDC = Logic High.
–0.6 to 0.8VDC = Logic Low.
Digital Input Sensitivity: Edge Sensitive. Requires High-Low or Low-High transition to
change function.
Response Time: Response within <0.25 second of signal state change.
Isolation:
Reinforced safety isolation from inputs and other outputs.