MAKING MODERN LIVING POSSIBLE
EN-Instruction sheet
ERC 101 kit
Produced by Danfoss A/S (EL-MSSM/AZ) | March 2014
DKRCC.EI.RL0.A3.02/520H8599
2
Assignments
Assignments of inputs and outputs
S2 Application
S2A
Application to be controlled with Sensor
C. (nC=Not Connected, Sco= Temp control,
EuA= Evap temp, Con=Cond temp {condenser
cleaning})
nC
Con -
nc
DO1 configuration
o1C Relay output 1. compressor (CoP)
2. Heater HeT
CoP
HeT
-
CoP
Password level1
PS1
Shop owner Most common parameters
0
999
-
0
Password level2
PS2
Service technician all parameters with read
permission and possibility to change a
number of parameters
0
999
-
0
Service
Service
Voltage value
uAC Current main power supply voltage
0
270
Vac
-
Relay 1 counter
rL1
Thousands of cycles of compressor relay since
manufacture
0
999
1000
-
Interval counter
int
Compressor run time since last defrost
0
999
min
-
Defrost time counter
dnt
Duration of last defrost cycle [min]
0
999
min
-
Firmware version
Fir
Danfoss software version number
-
-
-
-
Hardware version
HAr
Danfoss hardware version number
-
-
-
-
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Parameters
Problem solving
Menu
Parameters
Cod Description
Min
Max Unit
De-
fault
Setpoint
Stp
Setpoint
-50
80
C
2
Thermostat
tHE
Thermostat settings
Setpoint adjustment
ratio
SPr
Current setpoint adjustment value diF * SPr
0.0
1.0
-
0.0
Differential
diF
Thermostat differential
0.0
20.0 K
2.0
Air temperature
adjust
tAD
Air Temp Adjust
0.0
20.0 K
0
Alarm
ALA Alarm setting
High temperature
alarm
HAt
Alarm is activated above this temperature
(Celsius )
-50.0 80.0 C
15.0
Low temperature
alarm
LAt
Alarm is activated below this temperature
(Celsius )
-50.0 80.0 C
-50.0
Compressor
CoP Compressor Setting
Min run time
Crt
Minimum time compressor must run 0-30
minutes
0
30
min
0
Min Stop time
CSt
Minimum time compressor must idle 0-30
minutes
0
30
min
0
Max OFF time
Cot
Maximum time compressor must idle 0-480
minutes
0
480
min
0
Error run time
Ert
Compressor run time if temperature sensor is
not working (0-60 minutes )
0
60
min
0
Error stop time
ESt
Compressor stop time if temperature sensor is
not working (0-60 minutes )
0
60
min
0
Minimum cut-in
voltage
uLi
When compressor is OFF:
lowest compressor start voltage (0-270 V)
0
270
Vac
0
Minimum cut-out
voltage
uLo
When compressor is ON:
lowest operation voltage (0-270 V)
0
270
Vac
0
Maximum voltage
uHi
When compressor is ON:
highest operation voltage (0-270 V)
0
270
Vac
270
Power ON delay
Pod
Delay in seconds between power ON &
compressor being activated
0
300
Sec
180
Defrost
dEF
Defrost Setting
Defrost type
dFt
No: defrost function is disabled,
nat: OFF-cycle defrost (natural defrost)
no
nat
-
nat
Terminating temp
dtt
Temp at which defrost stop
(evap temperature or cabinet temperature)
0
25
C
7
Def Min Interval
dii
The minimum time in hours between the start
of each defrost cycle
0
96
hours 6
Def Max Interval
dAi
The maximum time in hours between the
start of each defrost cycle
0
96
hours 7
Def Min time
dit
The minimum duration of a defrost cycle
in minutes
0
240
min
10
Def Max time
dAt
The maximum duration of a defrost cycle
in minutes
0
480
min
30
Condenser
Protection
Con Condenser protection settings
Condenser Alarm
Limit
CAL If condenser sensor exceeds this temperature,
alarm is activated
0
85
C
75
Condens er Block
Lim it
CbL
If this temperature is exceeded, compressor
will be stopped
0
85
C
85
Condenser OK limit
CoL
Temperature at which compressor may start
after a stop due to exceeding CbL
0
85
C
60
Condenser Low Temp
CLL
Temperature below which the compressor is
not allowed to start
-50
20
C
-5
Display
diS
Display setting
Lock-time After
defrost
dLt
Display lock time after defrost [0-60 min]
0
60
min
5
Problem
Probable cause
Remedy
Compressor does not start
Waiting for compressor delay timer
Check CoP->CSt
Line voltage to compressor too low or too high Check CoP->uLi, uLo, uHi
E01 or E02 is shown on display
E01: Sensor "S1" defective
Replace sensor
E02: Sensor "S2" defective
Display alternates between "Con" and
temperature
Condenser temperature exceeds the
temperature set in condenser settings menu
Clean condenser,
Check Con->CAL, CbL
Display alternates between "Hi" and
temperature
Temperature too high
Check ALA->HAt
Display alternates between "Lo" and
temperature
Temperature too low
Check ALA-> LAt