ProtEX-MAX PD8-6210 Explosion-Proof Analog Input Batch Controller
Instruction Manual
19
Relays
Rating
4 SPDT (Form C) internal rated
3 A @ 30 VDC and 125/250 VAC resistive
load; 1/14 HP (
≈
50 W) @ 125/250 VAC for
inductive loads
Noise
Suppression
Noise suppression is recommended for
each relay contact switching inductive
loads; see
for details.
Relay
Assignment
Relays may be assigned to batch control
total, sampling, rate, or grand total alarms.
Pre-Close
0-100% of batch size, individually user
programmable for each additional batch
control relay beyond the first.
Alarm
Deadband
0-100% of span, user programmable
High or Low
Flow Alarm
User may program any alarm for high or
low trip point. The alarm detection is active
only while the batch is running. Unused
alarm LEDs and relays may be disabled
(turn off).
Relay
Operation
•
Manual or automatic batch control
•
Automatic (non-latching)
1
and/or manual
alarm reset (acknowledge)
•
Latching (requires manual
acknowledge) with or without clear
•
Pump alternation control (N/A to batch)
•
Sampling (based on set point and time)
•
Off (disable unused relays and enable
Interlock feature)
•
Manual on/off control mode
Relay Reset
(Acknowledge)
User selectable via programming buttons,
F4 digital input, external contact closure on
digital inputs, automatically via user
selectable preset value and time delay, or
through serial communications.
Alarm Time
Delay
0 to 999.9 seconds, on & off relay time
delays. Programmable and independent for
each relay.
Fail-Safe
Operation
Programmable and independent for each
relay.
Note:
Relay coil is energized in non-alarm
condition. In case of power failure, relay will
go to alarm state.
Alarm Auto
Initialization
When power is applied to the controller,
relays will reflect the state of the input to
the controller.
1
1. Alarms are active only when the batch is running.
USB Connection
Function
Programming only
Compatibility
USB 2.0 Standard, Compliant
Connector
Type
Micro-B receptacle
Cable
USB A Male to Micro-B Cable
Driver
Microsoft
®
Windows
®
XP/Vista/7/8/10
Power
USB port provides power to the controller
for configuration only.
DO NOT apply AC or DC power to the
controller while the USB port is in use.
Isolated 4-20 mA Transmitter
Output
Output
Source
Rate/process, total, grand total, max, min,
set points 1-4, Modbus register, or manual
control mode
Scaling Range
1.000 to 23.000 mA for any display range
Calibration
Factory calibrated:
4.000 to 20.000 = 4-20 mA output
Analog Out
Programming
23.000 mA maximum for all parameters:
Overrange, underrange, max, min, and
break
Accuracy
± 0.1% FS ± 0.004 mA
Temperature
Drift
0.4 µA/
C max from 0 to 65
C ambient,
0.8 µA/
C max from -40 to 0
C ambient
Note:
Analog output drift is separate from
input drift.
Isolated
Transmitter
Power Supply
Terminals I+ & R: 24 VDC
10%. Used to
power the 4-20 mA output.
All models rated @ 25 mA max.
External Loop
Power Supply
35 VDC maximum
Output Loop
Resistance
Power supply Minimum Maximum
24 VDC
10
700
35 VDC
(external)
100
1200
RS-485 Serial Communications
Compatibility
EIA-485
Connectors
Removable screw terminal connector
Max Distance
3,937' (1,200 m) max
Status
Indication
Separate LEDs for Power (METER LINK),
Transmit (TX), and Receive (RX)
Modbus
®
RTU Serial
Communications
Slave Id
1
– 247 (Controller address)
Baud Rate
300
– 19,200 bps
Transmit
Time Delay
Programmable between 0 and 199 ms
Data
8 bit (1 start bit, 1 or 2 stop bits)
Parity
Even, Odd, or None with 1 or 2 stop bits
Byte-To-Byte
Timeout
0.01
– 2.54 second
Turn Around
Delay
Less than 2 ms (fixed)
Note:
Refer to the ProtEX-MAX Modbus Register Tables
