ProtEX-MAX PD8-6310-WM Explosion-Proof NTEP Certified Batch Controller Instruction Manual
8
Programmable
Delay
On Release
0.1 and 999.9 seconds; applied to the first
relay assigned
to total or grand total.
If the controller is programmed to reset
total to zero automatically when the preset
is reached, then a delay will occur before
the total is reset.
Grand Total
Reset
Via front panel button, external contact
closure on digital inputs, automatically via
user selectable preset value and time
delay, or through serial communications.
Grand Total
Reset
Password
Grand total passwords may be entered to
prevent resetting the grand total from the
front panel.
Non-
Resettable
Grand Total
The grand total can be programmed as a
non-resettable total by entering the
password “050873”.
Caution!
Once the Grand Total has been
programmed as “non-
resettable” the feature cannot
be disabled.
Relays
Rating
4 SPDT (Form C) internal and/or 4 SPST
(Form A) external; 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 page 22 for details.
Relay
Assignment
Relays may be assigned to batch control
total, sampling, rate, or grand total alarms.
Preclose
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
Alarm
User may program any alarm for high or
low trip point.
Unused alarm LEDs and relays may be
disabled (turn off).
Relay
Operation
Batch control
Automatic (non-latching)
1
Sampling
Off (disable unused relays and enable
Interlock feature)
Manual on/off control mode
Secondary Functions
2
Pump alternation control (2 to 4 relays)
Latching (requires manual acknowledge)
Relay Reset
User selectable via front panel buttons,
digital inputs, or PC
1. Automatic reset only (non-latching),
when the input passes the reset point
or total is reset to zero.
2. Aut manual reset at any time
(non-latching)
3. Manual reset only, at any time
(latching)
4.
Manual reset only after alarm
condition has cleared (L)
Note: Digital inputs may be assigned to
acknowledge relays programmed for
manual reset. It is not recommended to
change the functions of front panel buttons
to manual reset.
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.
2. These functions are not functional when the unit is being
used as a batch controller with total set to yes.
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
Program-
ming
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% . May be
used to power the 4-20 mA output or other
devices. Refer to Figure 24 on page 23.
All models @ 25mA max.
External
Loop Power
Supply
35 VDC maximum
Output Loop
Resistance
Power supply Minimum Maximum
24 VDC
10
700
35 VDC
(external)
100
1200
!
