Configuring a new unit
• Mount the unit on a 35mm DIN rail and connect supply, input
and output wires to the appropriate terminals based on the connec-
tion diagrams in this Quick Start Guide.
• Snap the SCU-PDM1 Programming Module on the front of the
unit.
• Power up the unit.
• The unit should display the configuration menu similar to the
figure below. If not, press ;once.
• Press ;to begin configuration. Press .or ,to scroll
through options on each step. Press ;to confirm an option and
move to the next step.
• Press and hold ;to step backwards through the configuration
menu.
Abbreviations used on the SCU-PDM1 display
FL.ER = flash memory error
AO.ER = no load for current output
(S4-20 mA only)
NO.CO = connection error with SCU-PDM1
IN.ER = error levels on input
TY.ER = configuration in SCU-PDM1
doesn’t match this product
ADV.SET = advanced settings
IN TYPE = input type
V.RANGE = voltage range
I.RANGE = current range
CONNEC. = connecting wires
Pt TYPE = Platinum RTD type
Ni TYPE = Nickel RTD type
TC.TYPE = thermocouple type
DEC.P = decimal place location
SE.BR = a sensor wire is not connected
DECR = decreasing
ACT.DIR = action direction
DISP.LO = display range low
DISP.HI = display range high
REL.UN = relays set in units or % range
Rx.FUNC = relay 1 / 2 function
Rx.CONT = relay 1 / 2 contact type
Rx.SETP = relay 1 / 2 setpoint
Rx.HYST = relay 1 / 2 hysteresis
ERR.ACT = relay action on error
ON.DEL = relay on delay
OFF.DEL = relay off delay
ANA.OUT = analog output
O.RANGE = output range
OUT.ERR = output action on error
OUT.LO = temp for low output
OUT.HI = temp for high output
EN.PASS = enable password
NEW.PAS = new password
CAL.LO = calibrate input low to process value?
CAL.HI = calibrate input high to process value?
USE.CAL = Use process calibration value?
Application Example - Voltage Input to
Current and/or Relay Output
A level sensor with 0-5 VDC output needs to be connected to a 4-20
mA and/or digital inputs input on a PLC. The sensor measures
fluid level between 0 and 60” in a tank. When using the SCU-1600
or SCU-3100, low and high alarms will be set at 5” and 55” respec-
tively with a 3” hysteresis and 5 second on delay set for each alarm.
In the event of a sensor error, both relays will hold in their current
state when the error occured. Relay switching will work as follows:
0” 5” 8” 52”55” 60”
Relay 1 ON Relay 2 ON
• In the configuration menu press .or ,until VOLT is
displayed on line 1. Press ;.
• Select input range. Press .or ,until 0-5 is displayed for
V.RANGE. Press ;.
• Select input units. Press .or ,until in is displayed for UNIT.
Press ;.
• Select decimal point location. Press .or ,until 111.1 is
displayed for DEC.P. Press ;.
• Set display value for minimum input. Press .or ,until 0.0 is
displayed for DISP.LO. Press ;.
• Set display value for maximum input. Press .or ,until 60.0 is
displayed for DISP.HI. Press ;.
Relay Configuration (SCU-1600 and SCU-3100 only)
• Select the relay unit type. Press .or ,until DISP is displayed for REL.UNI.
Press ;.
• Select relay 1 function. Press .or ,until SETP is displayed for R1.FUNC.
Press ;.
• Select relay contact type. Press .or ,until N.O. is displayed for R1.CONT.
Press ;.
• Set relay setpoint. Press .or ,until 5.0 is displayed for R1.SETP.
Press ;.
• Select relay activation decreasing mode. Press .or ,until DECR is displayed
for ACT.DIR. Press ;.
• Set relay hysteresis. Press .or ,until 3.0 is displayed for R1.HYST.
Press ;.
• Set relay on delay in seconds. Press .or ,until 5is displayed for ON.DEL.
Press ;.
• Set relay off delay in seconds. Press .or ,until 0is displayed for OFF.DEL.
Press ;.
• Select relay 2 function. Press .or ,until SETP is displayed for R2.FUNC.
Press ;.
• Select contact type. Press .or ,until N.O. is displayed for R2.CONT.
Press ;.
• Set relay setpoint. Press .or ,until 60.0 is displayed for R2.SETP.
Press ;.
• Select relay activation increasing mode. Press .or ,until INCR is displayed
for ACT.DIR. Press ;.
• Set relay hysteresis. Press .or ,until 3.0 is displayed for R2.HYST.
Press ;.
• Set relay on delay in seconds. Press .or ,until 5is displayed for ON.DEL.
Press ;.
• Set relay off delay in seconds. Press .or ,until 0is displayed for OFF.DEL.
Press ;.
• SCU-1400 and SCU-1600 only Select output mode. Press .or
,until CURR is displayed for ANA.OUT. Press ;.
• SCU-1400 and SCU-1600 only Select output range. Press .or
,until 4-20 is displayed for O.RANGE. Press ;.
• Wait while the settings are stored and the unit switches to run mode.
Once the SCU-1600 or SCU-3100 has been configured, the relay
setpoints can be adjusted very quickly. Press .to adjust RELAY1
and ,to adjust RELAY2. Adjust the setpoint up or down and then
press ;to save the setting and exit the menu. Pressing .and
,simultaneously will change the relay’s state.
Copyright 2019, Automationdirect.com Incorporated/All Rights Reserved Worldwide
Note: If no sensor is connected to the input terminals, SE.BR will flash in the
display when the unit is powered up. Press ;once to acknowledge the
error and then press ;again to display the first screen of the menu as
shown above.
An oven’s temperature is to be monitored using a type K thermo-
couple and a SCU-1400 or SCU-1600. The unit will output a 0-10
VDC signal for a temperature range of 100-400 °F
• In the configuration menu press .or ,until TEMP is
displayed on line 1. Press ;.
• Select sensor type. Press .or ,until TC is displayed for
SENSOR. Press ;.
• Select TC type. Press .or ,until TC.K is displayed for
TC.TYPE. Press ;.
• Select CJC type. Press .or ,until INT is displayed for CJC.
Press ;.
• Select temperature units. Press .or ,until °Fis displayed for
UNIT. Press ;.
• SCU-1600 only - select relay 1 function. Press .or ,until OFF is displayed for
R1.FUNC. Press ;.
• SCU-1600 only - select relay 2 function. Press .or ,until OFF is displayed for
R2.FUNC. Press ;.
• Select output mode. Press .or ,until VOLT is displayed for
ANA.OUT. Press ;.
• Select output range. Press .or ,until 0-10 is displayed for
O.RANGE. Press ;.
• Set temperature for analog output low. Press .or ,until 100.0
is displayed for OUT.LO. Press ;.
• Set temperature for analog output high. Press .or ,until 400.0
is displayed for OUT.HI. Press ;.
• Wait while the settings are stored and the unit switches to run mode.
Application Example - Thermocouple Input Application Example - Voltage Input to
Voltage Output with Custom Scaling - Cont’d
• Wait while these settings are stored and the unit switches to run
mode.
• Press ; to return to the configuration menu.
• Enter Advanced Settings Mode. Press .or ,until YES is
displayed for ADV.SET. Press ;.
• Select custom scaling mode. Press .or ,until CAL is displayed
for SETUP. Press ;.
• Drive the input to a low value. The value does not have to be a
minimum. In this example we will use 5.0 VDC (40 gallons per
minute).
• Select lowpoint. Press .or ,until YES is displayed for CAL.LO
Press ;.
• Set low point. Press .or ,until 40.0 is displayed for gal/
min. Press ;.
• Drive the input to a high value. The value does not have to be a
maximum. In this example we will use 6.0 VDC (60 gallons per
minute).
• Select high point. Press .or ,until YES is displayed for
CAL.HI. Press ;.
• Set high point. Press .or ,until 60.0 is displayed for gal/
min. Press ;.
• Confirm to use custom scaling. Press .or ,until YES is
displayed for USE.CAL. Press ;.
• Wait while the settings are stored and the unit switches to run mode.
A flow sensor, connected to a SCU-1400 or SCU-1600, delivers
a 3-7 VDC output over a range of 0-80 gallons per minute. The
signal conditioner will convert the 3-7 VDC input signal to a
0-10 VDC output signal. The unit must first be configured to the
voltage output range. The two-point calibration mode in Advanced
Settings is then used to set the custom input range.
• In the configuration menu press .or ,until VOLT is
displayed on line 1. Press ;.
• Select input range. Press .or ,until 0-10 is displayed for
V-RANGE. Press ;.
• Select input units. Press .or ,until gal/min is displayed for
UNIT. Press ;.
• Select decimal point location. Press .or ,until 111.1 is
displayed for DEC.P. Press ;.
• Set display for minimum input. Press .or ,until 0.0 is
displayed for DISP.LO. Press ;.
• Set display for maximum input. Press .or ,until 80.0 is
displayed for DISP.HI. Press ;.
Select the relay unit type. Press .or ,until DISP is displayed for REL.UNI.
Press ;.
• SCU-1600 only - select relay 1 function. Press .or ,until OFF is displayed for
R1.FUNC. Press ;.
• SCU-1600 only - select relay 2 function. Press .or ,until OFF is displayed for
R2.FUNC. Press ;.
• Select output mode. Press .or ,until VOLT is displayed for
ANA.OUT. Press ;.
• Set output range. Press .or ,until 0-10 is displayed for
O.RANGE. Press ;.
Application Example Continued above.
Application Example - Voltage Input to
Voltage Output with Custom Scaling
Several useful functions are in the Advanced Settings Menu. To get
to the Advanced Settings Menu, Press .or ,until YES is
displayed for the first screen of the configuration menu that looks
like this:
The configuration of the SCU-1400, SCU-1600 or SCU-3100
can be saved into the SCU-PDM1. The SCU-PDM1 can then be
moved to another unit (must be the same part number) and the
configuration loaded into the new unit.
• Enter Advanced Settings menu and then press .or ,until
MEM is displayed for SETUP. Press ;.
• To save the configuration into the SCU-PDM1. Press .or ,
until SAVE is displayed for MEMORY. Press ;.
• To load the configuration from the SCU-PDM1 into the SCU-1400,
SCU-1600 or SCU-3100. Press .or ,until LOAD is displayed
for MEMORY. Press ;.
Password Protection allows the user to create a 4-digit password
(0000-9999) to prevent tampering with configuration settings if the
SCU-PDM1 is left mounted to the front of the signal conditioner.
• Enter Advanced Settings menu and then press .or ,until
PASS is displayed for SETUP. Press ;.
• To enable password protection. Press .or ,until YES is
displayed for EN.PASS. Press ;.
• To set a password. Press .or ,until the desired code is
displayed for NEW.PAS. Press ;.
Note: The default password 2008 allows access to all configuration menus. The
default password cannot be changed.
Advanced Operations
Additional Help and Support
• For product support, specifications, installation and
troubleshooting, a Hardware User Manual can be
downloaded from the On-line Documentation area of the
AutomationDirect web site.
• For additional technical support and questions, call out
Technical Support team @ 1-800-633-0405 or 770-844-4200
21 22 24
23
R1 R2
11 12 14
13
+
-mA
11 12 14
13
+
-V
31 32 33
41 42 44
43
+
-
41 42 44
43
42 44
43
41 41 42 44
43
+
-Tx
41 42 44
43
+
-
41 42 44
43
41 42 44
43
+
-
41 42 44
43
41 42 44
43
11 12 14
13
+
-V
Inputs:
Outputs:
Voltage, 1 VVoltage, 10 VCurrent
Relays (only available on
SCU-1600 and SCU-3100)
RTD, 3- / 4-wire
Resistance,
3- / 4-wire
Voltage
Potentiometer Current2-wire transmitter
RTD, 2-wire
Resistance, 2-wire
TC, internal CJC
41 42 44
CJC
+
-
TC, optional external CJC
Accessory (SCU-CJC1 order separately)
Wiring Diagrams
Note: Help text for each abbreviation will scroll across the SCU-PDM1
