PLUS+1 Compliant
S42 NFPE
Function Block
User Manual
142.0 mm
[5.59]
97.0 mm
[3.82]
144.5 mm
5.69
158.2 mm
6.23
PIN #1
INDICATED
2x 25.2mm[1.0]
2x ∅7.0
[.28]
MOUNTING
DIRECTION
#2
LED INDICATOR
LIGHTS
TM
COMPLIANT
CONNECTOR MATES
WITH DEUTCH
CONNECTOR #DTM-06-125A
51.6 mm
47.1 mm
[1.85]
[2.03]
1
12
6
7
1
12
6
7
CONNECTOR MATES
WITH DEUTCH
CONNECTOR #DTM-06-125A
PLUS+1 Compliant S42 NFPE Function Block
T
User Manual
About this Manual
Organization
and Headings
o help you quickly find information in this manual, the material is divided into sections,
topics, subtopics, and details, with descriptive headings set in red type. Section titles
appear at the top of every page in large red type.
In the PDF version of this document, clicking an item underlined in blue italic type
you to the referenced page in the document.
Special Text Formatting Controls and indicators are set in bold black type.
Table of Contents
A Table of Contents (TOC) appears on the next page. In the PDF version of this document,
the TOC entries are hyperlinked.
How to Configure an MFOut ..................................................................................................... 21
How to Calibrate the Function Block .............................................................................................. 22
How to Calibrate an Individual Parameter .................................................................................... 24
About Manual Calibration with the Service Tool Program...................................................... 25
About the Name Space Feature ....................................................................................................... 26
How to Enter a Name Space Value .......................................................................................... 26
L1020210 · Rev BA · October 2011
3
Overview
PLUS+1 Compliant S42 NFPE Control Function Block
User Manual
S42_12V_NFPE Function Block
The S42_12V_NFPE function block interfaces between your application and a SauerDanfoss S42 12 V DC NFPE (Non-Feedback Proportional Electric) control that is used with
Sauer-Danfoss pumps. The output of this function block drives the coils that control flow
direction and flow magnitude through the pump’s A and B ports.
T PLUS+1 I/O modules do not have the fault-checking feedback signals that are needed
by this function block. An application that uses this function block to control an I/O
module will fail to compile.
See:
• About Function Block Connections on page 10 for an overview of this function block’s
connections and signals.
• About the Name Space Feature on page 26 if you are using more than one of these
function blocks in your application.
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L1020210 · Rev BA · October 2011
E
Inputs
PLUS+1 Compliant S42 NFPE Control Function Block
User Manual
S42_12V_NFPE Function Block
S42_12V_NFP
Input Type Range Description
Pwr —— —— Reports controller power supply voltage.
Fdbk_A —— —— Reports the status of the MFOut (Multifunction Output) block that receives the function block’s Out_A (Output A)
Fdbk_B —— —— Reports the status of the MFOut (Multifunction Output) block that receives the function block’s Out_B (Output B)
Setup —— —— Allows common configuration values to be applied to multiple function blocks.
Enable BOOL —— Enables the OutputValue signals in the Out_A and Out_B buses.
CmdIn S16 ±10000 Specifies the requested speed and direction.
Function Block Inputs
The function block uses this voltage when it calculates the measured resistance of the control circuit.
bus.
Each MFOut block in the Outputs page has a corresponding MFOut block in the Inputs page that reports on its
status through a Status bus.
bus.
Each MFOut block in the Outputs page has a corresponding MFOut block in the Inputs page that reports on its
status through a Status bus.
– T = OutputValue signals follow the CmdIn signal.
– F = Holds both OutputValue signals at zero.
– F/ T = Clears latched faults if CmdIn is zero.
– +10000 = Requests maximum Out_A speed.
– 0 = Requests neutral (stop).
– –10000 = Requests maximum Out_B speed.
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5
E
PLUS+1 Compliant S42 NFPE Control Function Block
User Manual
S42_12V_NFPE Function Block
Function Block Internal Constants
The following table lists constant values that are provided in the function blocks for
setting limits. These constants cannot be edited.
Function Block Internal Constants
Constant Range Description
MaxCrnt 1500 mA The maximum current for displacement or proportional control.
Nominal Ω 5.3 Ω The resistance of the load normally connected to Out_A and Out_B.
Function Block Parameters
Using the PLUS+1 Service Tool program download new parameter values to an
application can result in unexpected and sudden machine movements.
Unexpected and sudden machine movements can result in personal injury and
equipment damage.
Always secure your machine against unexpected and sudden movements before you
use the Service Tool program download new parameter values.
Warning
The following table lists function block parameters that are stored in the controller’s nonvolatile memory.
You can change these values by:
• Execution of the calibration process.
• Direct access to serial EE memory using the PLUS+1 Service Tool.
• Recalling default values.
S42_12V_NFP
Parameter Type Range Description
A_EE_Thld,
B_EE_Thld
A_EE_EndCrnt,
B_EE_EndCrnt
A_EE_CalFlg,
B_EE_CalFlg
Function Block Parameters
U16 CalThldMin–CalThldMax The calibrated threshold values for Out_A and Out_B.
U16 Thld + 1–MaxCurrentThe calibrated end current values for Out_A and Out_B.
U8 —— The calibration flags for Out_A and Out_B.
– Bit 1 = 1 (0x0001)—Threshold is not calibrated.
– Bit 2 = 1 (0x0002)—End current is not calibrated.
The Call signal in the Diag bus contains both pairs of flags, with the Out_B bits shifted to
positions 3 and 4.
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L1020210 · Rev BA · October 2011
PLUS+1 Compliant S42 NFPE Control Function Block
User Manual
S42_12V_NFPE Function Block
These parameters determine the values used as threshold and end current for each
direction during normal operation. However, the values actually applied might be
different because:
• Thld and EndCrnt are both subject to range limits.
• Thld is modified by the ThldMult value.
• The following intermediate values represent the values that are actually applied:
• EndCrntApplied = MIN (EE_EndCrnt, MaxCrnt).
• ThldApplied = MIN ((EE_Thld × ThldMult), EndCrntApplied).
This assures that:
• EndCrntApplied never exceeds MaxCrnt.
• ThldApplied never exceeds EndCrntApplied.
Also note that, while the CalTask value is set to select a calibration task:
• EndCrntApplied = MaxCrnt.
• ThldApplied = 1.
The applied values are available in the Diag bus as Thld_A, Thld_B, EndCrnt_A, and
EndCrnt_B.
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E
Outputs
PLUS+1 Compliant S42 NFPE Control Function Block
User Manual
S42_12V_NFPE Function Block
S42_12V_NFP
Output Type Range Description
Status —— —— Reports the function block’s status.
Status_A U16 —— Status conditions for the A output.
Status_B U16 —— Status conditions for the B output.
Fault —— —— Reports the function block’s faults.
Fault_A U16 —— Reports fault conditions for the A output.
Fault_B U16 —— Reports fault conditions for the B output.
Diag —— —— Outputs bus with these signals:
CalFlg U8 —— The CalFlg signal is a bitmask value that indicates the state of calibration values.
EndCrnt_A,
EndCrnt_B
FltTmr_A,
FltTmr_B
Function Block Outputs
This output uses the standard bitwise scheme described in the Basic Function Blocks Library User’s Manual.
This output uses the standard bitwise scheme described in the Basic Function Blocks Library User’s Manual.
The Diag bus has Config and Define sub-buses that report the configuration and setup values used by the
function blocks.
Use these signals for troubleshooting.
– Bit 1 = 1 (0x0001)—Threshold A is not calibrated.
– Bit 2 = 1 (0x0002)—End current A is not calibrated.
– Bit 3 = 1 (0x0004)—Threshold B is not calibrated.
– Bit 4 = 1 (0x0008)—End current B is not calibrated.
Use these flags to manage the calibration process.
U16 —— Report the active end current value for the A and B outputs.
During:
– Normal operation, end current values equal A_EE_EndCrnt and B_EE_EndCrnt values.
– Calibration, the active end current values equal the MaxCrnt value.
U16 —— Report the values of the fault delay timers.
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L1020210 · Rev BA · October 2011
PLUS+1 Compliant S42 NFPE Control Function Block
User Manual
S42_12V_NFPE Function Block
S42_12V_NFPE Function Block Outputs
Output Type Range Description
Thld_A,
Thld_B
MeasOhm_A,
MeasOhm_B
Out_A —— —— Has an OutputValue signal that drives the A coil.
Out_B —— —— Has an OutputValue signal that drives the B coil.
U16 —— Report the active threshold values for the forward and reverse directions.
During:
– Normal operation, the forward threshold value equals A_EE_Thld x ThldMult and the reverse threshold
value equals B_EE_Thld x ThldMult.
– Calibration, threshold values equal 1.
U16 —— Indicate the measured resistance of the control circuits that drive the pump’s coils.
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