Lenze 9400 Manual - Manual (Page 46)

Single-axis controllers
General data and operating conditions
4

46 EDS94SPP101 EN 7.1
The available protective insulation within the controller of the ” 9400 Servo Drives” series
in accordance with EN 61800-5-1 is implemented with a rated voltage for the external
conductor/star point of up to 300 V for mains with neutral earthing.
The following graphic representation
ƒ shows the arrangement of the terminal strips and the separate potential areas of
the controller.
ƒ serves to determine the relevant protective insulation between two terminals in
differently insulated separate potential areas.
Reinforced insulation
Basic insulation
Functional insulation
Protective insulation acc. to
EN 61800-5-1
(Definition of terms: see glossary)
Ext. DC
I/O
X4
X6 X6
X5
X7 X7
X8 X8
X3
X2 X1
X105 X105
X106
X100
X107
MXI1
MXI2
Bus
Ext. DC
MSI
MMI
E94YCXX007zl
Terminal strip Terminal Terminal strip Terminal
X100 z L1, L2, L3 (only single drive)
z
+UG, -UG
X1 CAN on board 9400
X2 z State bus
z
24 V (ext.)
X105 z U, V, W
z
Rb1, Rb2
(only single drive) X3 Analog input/output
X106 Motor PTC X4 Digital outputs
X107 Control of motor holding
brake
X5 Digital inputs
X6 Diagnostics
X7 Resolver
X8 Encoder
MXI1, MXI2 Extension module
MMI Memory module
MSI Safety module
Example
Which type of protective insulation is used between the bus terminal of the device module
in slot MXI1 or MXI2 and the mains terminal X100?
The separate potential area with the better protective insulation is decisive.
ƒ The separate potential area of the device module bus terminal is ”functionally
insulated”.
ƒ The separate potential area of the mains terminal has a ”reinforced insulation”.
Result: The insulation between the mains terminal X100 and the bus terminal is of the
”reinforced insulation” type.