Rockwell Automation 1771-PD PID MODULE (+DU) - Manual (Page 42)

Aseembly and Installation
Chapter 2
2Ć29
The PID module specifications are listed in Table 2.G.
Table 2.G
Specifications
Process Variable Inputs Digital Resolution Maximum Current
Number 12Ćbinary, 1 part in 4095 250mA
process variable input 1 Accuracy Maximum Power
process variable input 2 +0.1% of range at 25 0 C 3VA
Configuration Input Impedance Digital Inputs (from manual
Differential 250 ohms (current) manual control station)
Range (userĆselectable) 4.7 megohms (voltage) Two independent inputs for moniĆ
+4 to +20mA Maximum Allowable Input toring
+1 to +5V dc +30mA (current) Power Requirements
Digital Resolution 25V rms (voltage) Backplane or External (Digital Circuits)
12Ćbit binary, 1 part in 4095 Temperature Coefficient 1.2A at +5V dc
Accuracy +50 ppm/ 0 C External (Analog Circuits)
+0.1% of range at 25 0 C Analog Outputs 100mA AT +15V dc
Input Impedance Number 100mA at Ć15V dc
250 ohms (current) analog output 1 Loop Update Time
10 megohms (voltage) analog output 2 100msec, typical
Common Mode Rejection Ratio Configuration Ambient Temperature Ratings
70dB DC Single ended Operation 0 0 C to 60 0 C (32 0 F to
Common Mode Voltage Range Range (userĆselectable) 140 0 F
+200V with respect to module +4 to +20mA Storage Ć40 0 C to 85 0 C (Ć40 0 F to
common (With output common internally 185 0 F)
Common Mode Input Resistance referenced to power supply Relative Humidity Rating
2.5 megohms common 5% to 95% (without condensation)
Input Frequency Respnse the output will drive up to a 500 ohm Electrical Isolation
Ć3dB at 1kHz load over the full current range. [1] 1500V rms (transient
Maximum Allowable Input +1 to +5V dc (Isolation is achieved by
+30mA (current) (500 ohms minimum load resistance optoelectronic coupling between I/O
Module Specifications