Mdc Torque; Neutral Start Switch (Nss) - Danfoss H1P 045 Service Manual

Service Manual
H1P 045/053/060/068 Axial Piston Single Pumps
Operation
© Danfoss | June 2020
•
Customers must install some support to limit the setting range of their Bowden cable to avoid an
overload of the MDC.
•
Customers can apply their own handle design but they must care about a robust clamping
connection between their handle and the control shaft and avoid overload of the shaft.
•
Customers can connect two MDC's on a tandem unit in such a way that the actuation force will be
transferred from the pilot control to the second control. The kinematic of the linkages must ensure
that either control shaft is protected from torque overload.
C
Caution
Using the internal spring force on the input shaft is not an appropriate way to return the customer
connection linkage to neutral, or to force a Bowden cable or a joystick back to neutral position. It is not
applicable for any limitation of the Bowden cable stroke, except the applied torque to the shaft will never
exceed 20 N•m.

MDC Torque

Description
Torque required to move handle to maximum displacement
Torque required to hold handle at given displacement
Maximum allowable input torque
C
Caution
Volumetric efficiencies of the system will have impacts on the start and end input commands.

Neutral Start Switch (NSS)

The Neutral Start Switch (NSS) contains an electrical switch that provides a signal of whether the control
is in neutral. The signal in neutral is Normally Closed (NC).
Neutral Start Switch schematic
M14
M5
Neutral Start Switch data
Max. continuous current with switching
Max. continuous current without switching
Max. voltage
Electrical protection class
M4 M3
P005 702
8.4 A
20 A
36 V
DC
IP67 / IP69K with mating connector
Value
1.4 N•m [12.39 lbf•in ]
0.6 N•m [5.31 lbf•in]
20 N•m [177 lbf•in]
AX152886481964en-000405 | 19