West P8170 1/8 Din Valve Motor Controller

TECHNICAL DATA

Features
Control Types	Full PID with Pre-tune, Self-tune and manual tuning modes.
Valve Control	Open Loop Valve Motor Drive.
Auto/Manual	Selectable from front panel or via digital input, with bumpless transfer.
Output Configuration	Up to 5 possible, two required for valve control, additional outputs for alarm, 24VDC transmitter power supply or retransmit of process value or setpoint.
Alarm 1 & 2 Types	Process high, process low, SP deviation, band, logical OR / AND. Also 1 loop alarm for process control security. Process alarms have adjustable hysteresis.
Human Interface	4 button operation, dual 4 digit 10mm & 8mm high LED displays, optional choice of colours (Red/Red, Red/Green, Green/Red or Green/Green), plus 5 LED indicators
PC Configuration	Off-line configuration from PC serial port to dedicated configuration socket (communications option not required). Configuration Software for Windows 98 or higher. West Part Number:PS1-CON
Input
Thermocouple	J, K, C, R, S, T, B, L, N & PtRh20%vsPtRh40%.
RTD	3 Wire PT100, 50 Ohm per lead maximum (balanced)
DC Linear	0 to 20mA, 4 to 20mA, 0 to 50mV, 10 to 50mV, 0 to 5V, 1 to 5V, 0 to 10V, 2 to 10V. Scaleable -1999 to 9999, with adjustable decimal point
Impedance	>10M Ohm for Thermocouple and mV ranges, 47K Ohm for V ranges and 5 Ohm for mA ranges
Accuracy	±0.1% of input range ±1 LSD (T/C CJC better than 1°C)
Sampling	4 per second, 14 bit resolution approximately
Sensor Break Detection	< 2 seconds (except zero based DC ranges), control O/P's turn off, high alarms activate for T/C and mV ranges, low alarms activate for RTD, mA or V ranges
Output and Options
Control & Alarm Relays	Contacts SPDT 2 Amp resistive at 240V AC (120V AC Max for direct VMD), >500,000 operations. (1A 2xSPST 200,000 operations for Dual Relay)
Control SSR Driver Outputs	Drive capability >10V DC in 500 Ohm minimum
Triac Outputs	0.01 to 1 Amp AC, 20 to 280Vrms, 47 to 63Hz, 140V Max for direct VMD
DC Linear Outputs	0 to 20mA, 4 to 20mA into 500 Ohm max, 0 to 10V, 2 to 10V, 0 to 5V into 500 Ohm min. Accuracy ±0.25% at 250 Ohm (degrades linearly to 0.5% for increasing burden to specified limits) Retransmit of PV or SP Only.
Transmitter Power Supply	Output 24VDC (nominal) into 910 Ohm minimum to power external devices
Serial Communications	2 Wire RS485, 1200 to 19200 Baud, Modbus protocol
Digital Input	Selects between 2 setpoints or Auto/Manual control. Volt free or TTL input
Remote Setpoint/Valve Position Auxiliary Input	0 to 20mA, 4 to 20mA, 0 to 100mV, 0 to 5V, 1 to 5V, 0 to 10V, 2 to 10V or =2K Ohm Potentiometer Scaleable -1999 to 9999. For Valve Position Indication or Remote Setpoint Input. Local/Remote setpoint selected from digital input (supplied as part of Full Auxiliary) or front panel.
Operating and Environmental
Temperature & RH	0 to 55°C (-20 to 80°C storage), 20% to 95% RH non-condensing
Power Supply	100 to 240V 50/60Hz 7.5VA (optional 20 to 48V AC 7.5VA/22 to 65V DC 5 watts)
Front Panel Protection	IEC IP66 (Behind panel protection is IP20)
Approvals and Certification	CE, UL & ULC recognised

DIMENSIONS

CONNECTION DETAILS

FIELD RECONFIGURATION

Input
Jumper-free configuration for any type (no extra parts required) Option Slot 1
Relay Output (PO1-C10)
Linear mA/V DC Output (PO1-C21)
SSR Driver Output (PO1-C50)
Triac Output (PO1-C80)

Option Slot 2
Relay Output (PO2-C10)
Linear mA/V DC Output (PO2-C21)
SSR Driver Output (PO2-C50)
Triac Output (PO2-C80)
Dual Relay Output (PO2-W09)

Option Slot 3
Relay Output (PO2-C10)
Linear mA/V DC Output (PO2-C21)
SSR Driver Output (PO2-C50)
24VDC Transmitter PSU (PO2-W08)

Dual Relay Output (PO2-W09)

Option Slot A
Digital Input (PA1-W03)
Remote Setpoint Input ((Basic)PA1-W04)
RS485 Comms (PA1-W06)

Option Slot B
Auxiliary Input (Full) (PB1-W0R)

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