SIGMATEK MDD 121-1 User Manual

MDD 121-1
10.03.2021 Page 47
4.4.2 Classic emergency stop function (stop category 0)
The motor cable length is limited to 20 m. If a longer motor cable is required, use an
addition motor choke in the output of the servo drive.
Note: The contactor K
EM
has to be switched on, before the servo drive is
enabled and to be switched off minimal 1ms after disable.
66
55
44
33
22
Motor
11
W
V
U
PE
B+
B-
WW
VV
UU
PEPE
B+B+
B-B-
Axis Module
X11, X21
2 x R
EM
K
EM
PE
+ DC
− DC
+24V-BR
BGND
The resistance and wattage of the resistors R
EM
are calculated using following formulas:
maxSPEED maximum application speed [rpm]
I
max
maximum allowed rms current of the motor [A]
K
Erms
Voltage const. of the motor [V*min]
 
8.0
max
max


=
I
KSPEED
R
Erms
EM
 
10
)²8.0(
max EM
EM
RI
WP

=

SIGMATEK MDD 121-1 Specifications

General

Brand	SIGMATEK
Model	MDD 121-1
Category	Control Unit
Language	English