1
Series MPC Pump Controller
Specifications - Installation and Operating Instructions
Bulletin L-20
SPECIFICATIONS
Inputs:
4-20 mA DC or 2.0 to 10.0 V DC selectable.
Input Impedance:
Current input: 10 Ω, Voltage input:
100K Ω.
Output Ratings:
Control relays: SPDT, rated 10A @
240 VAC res., 1/4 hp @120 VAC, 1/3 hp @ 240 VAC;
Alarm relays: SPST, 3A @ 240 VAC res., 1/10 hp @
120 VAC.
Control Type:
On/off, reverse or direct acting.
Power Requirements:
100-240 VAC nominal,
+10%-15%, 50 to 400 Hz, single phase; 132-240 VDC
nominal, +10%-15%.
Power Consumption:
7.5 VA max.
Accuracy:
0.25% of span, 1 least significant digit.
Display:
Two 4 digit, 7 segment 0.56˝ high LEDs.
Display Resolution:
1 count.
Memory Backup:
Nonvolatile memory (no batteries
required).
Serial Communications:
Optional RS-232 or RS-485
with Modbus
®
protocol.
Ambient Operating Temperature / RH:
14 to
131°F (-10 to 55°C) / 0 to 90% up to 104°F (40°C)
non-condensing, 10 to 50% at 131° F (55°C) non-
condensing.
Weight:
16 oz. (454 g).
Front Panel Rating:
Meets UL type 4X (IP66).
Loop Power Supply (Isolated):
24 VDC @ 50 mA,
regulated.
Seal Failure (Moisture Sensor):
Power supply
to moisture sensor: 2.5 VDC; Search current: 3
micro amps; Resistance sensitivity: 10K to 500K Ω;
Resistance resolution: 10K Ω steps.
Over Temperature:
Input: Dry contact on transistor
switch (NPN open collector type); Current: 1 mADC;
Isolation: Shares common ground with transmitter
input.
Alarm On-Off Differential:
1 count.
Set Point Range:
Selectable.
Power Voltage Stability:
0.05% over the power
voltage range.
Temperature Stability:
100 PPM/°C typical, 200
PPM/°C maximum.
Common Mode Rejection:
140 db minimum at 60
Hz.
Normal Mode Rejection:
65 db typical, 60 db at 60
Hz.
Isolation:
Relay: 1500 VAC to all other inputs and
outputs; 24 VDC loop power: 500 VAC to other inputs
and outputs; Process output: 500 VAC to other inputs
and outputs; Seal failure input: 500 VAC to other
inputs and outputs.
Storage Temperature:
-40 to 176° F (-40 to 80° C).
Agency Approvals:
UL 508.
4-1/2 [114.3]
17/32 [13.5]
3-19/32
[91.3]
3-25/32 [95.9]
3-25/32
[95.9]
MAX. PANEL
THICKNESS 0.25 [6.35]
PANEL CUT-OUT: 3.620 X 3.620 IN, +0.032/-0.000
[92 X 92 MM, +0.8/-0.0].
ALLOW FOR 0.5 IN [13 MM] CLEARANCE
AT THE REAR OF THE INSTRUMENT.
MEETS IP66 [UL TYPE 4X]
TABLE OF CONTENTS
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Specifications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Getting Started
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
Model Identification
. . . . . . . . . . . . . . . . . . . . . . . . . .
2
Installation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
Wiring
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-5
Front Panel Functions
. . . . . . . . . . . . . . . . . . . . . .
6-7
Home Display
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
Security Level Selection
. . . . . . . . . . . . . . . . . . . . . .
7
Lead/Lag Operation
. . . . . . . . . . . . . . . . . . . . . . . . . .
7
Seal Failure Operation
. . . . . . . . . . . . . . . . . . . . .
7-8
Over Temperature Operation
. . . . . . . . . . . . . . . . . .
8
Analog Retransmission Operation
. . . . . . . . . . . . .
8
Pump Run Time Operation
. . . . . . . . . . . . . . . . . . . .
8
Serial Communication Operation
. . . . . . . . . . . . . . .
8
Menu Selections . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Secondary Menu
. . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Secure Menu . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-11
Alarm Type and Action
. . . . . . . . . . . . . . . . . . .
11-12
Diagnostic Error Messages
. . . . . . . . . . . . . . . . . .13
Programming Chart
. . . . . . . . . . . . . . . . . . . . . . . . .14
Programming Example
. . . . . . . . . . . . . . . . . . . . . .
15
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