ELREHA MSR eco 3140 Technical Manual

Brief Description / Applications
• Suction Pressure Controller and/or High Pressure Controller,
configurable for:
- Standard Compressors
- Compressors with CRII-System Control Stages
- Condensation High Pressure Control
• For up to 8 Suction Pressure Stages respective High Pressure Stages usable
• For use as a single controller or in a network
• Direct connection of up to 64 Cold Storage Controllers,
Data Exchange for Energy Optimization
• 4 Sensor-, 2 Pressure Transmitter- , 4 Digital Inputs,
5 Relay Outputs (2 Relays, 3 SSR-Relays), Analogue Output
• Capable of handling up to 4 additional stages.
(When used in conjunction with Expansion Module BMR 3002).
• For Single- and Multi-Stage Loads
• Peak Load Limitation, Suction Pressure Shifting
• Automatic Stage Sequencing
• Fixed or Autoadaptive Delay Times for Switching Frequency Optimization
• Capturing of Machine Feedback Signals and Plant Errors
• Analogue Output for P/PI-Control
• In-/Outputs configurable
• Manual Operation of all Machines
• Night Operation via internal clock
Operating / Operating Elements
EVP
increase
1 2
values
decrease
values
The displayed setpoint
is active
The current states of the Digital Inputs, the Relay Outputs and the Data
Transmission can be read on the Actual Values Page at L98 and L99.
Convenient 3 key control for all functions clearly appear on a 7 segment LED
display. 4 symbols to the right indicate active control function(s). (Relay status
is indicated separately on „Actual Page").
Programming
The MSR eco parameters are simple to access, view and change. During
normal operation, or if no key is pressed for at least 3 minutes, the MSR eco
will display the following:
1st priority: current failure display (blinking)
2nd priority: operation status display (ex. „oFF")
3rd priority: selected „permanent parameter" display
Selecting and Changing of Parameters
Key Action
P (> 2 sec.) ....Page name will be displayed
 .................Select desired page
P . .................Enter the page
 .................Select parameter
P . .................Prepare programming. Enter access code if necessary
 .................Change value.
If you hold the key, the values change continuously
P . .................Confirm programming
P (> 2 sec.) ....Page name will be displayed again
Access Protection
All adjustable parameters/set-points are protected by an access code.
They are divided into 3 groups or levels with 3 operator codes.
An access code will be required to change an adjustable parameter, (see
parameter listing). To change an adjustable parameter that requires an access
code, begin by pressing the „P" key.:
(00 The screen will display C00, prompting the user for access
code entry.
The Access Codes are divided into 3 access levels, (OEM, Technician, and
Customer Codes).
- OEM Code „oem": Month + Hour + 20
The OEM Code grants access to all adjustable parameters on the
device.
- Technician Code „tec" : 88
The Technician Code grants access only to „Technician" and „Customer"
assigned adjustable parameters.
- Customer Code „---" : no access code required.
The Customer Code grants access only to „Customer" assigned
adjustable parameters.
If no key has been pressed for 3 minutes, the operator code must be
re-entered.
LED blinking = Alarm
3 4
P
ELREHA
programming key
ELEKTRONISCHE REGELUNGEN GMBH
Technical Manual
Stage Controller
MSR
Parameter Pages
(L)
(r)

(d)

(P)
(A)
(h)
Please note Safety Instructions
on page 10 !
Attention
5311437-03/02
2018-06-25, tkd/jr
from Software Vers. 2.04
3140
eco
Some functions may not be available on devices
with older software versions.
P
> 2 sec.
P
L01
P
r01
P
d01
P
P10
P
A01
P
h01
/01
e
1st. Parameter
on the
Actual
Values
Page
Setpoint
Page
Suction
Pressure
Setpoint
Page
High
Pressure
Mode
Page
Address
Page
Assign-
ment
Page