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MDS-D-SVJ3/SPJ3 Series Instruction Manual
2-7 Connection of regenerative resistor
2 - 33
2-7 Connection of regenerative resistor
2-7-1 Standard built-in regenerative resistor (Only for MDS-D-SVJ3)
The built-in regenerative resistor is connected by short-circuiting between the P and D terminals of the
control circuit terminal block (TE2). (Shipment state). Confirm that a short wire has been connected between
the P and D terminals.
2-7-2 External option regenerative resistor
(1)Servo drive unit
Disconnect the short wire connected between the P and D terminals, and connect the external option
regenerative resistor unit P-C between the P and C terminals. The drive unit has an internal regenerative
resistor electronic thermal (software process), and when overheating of the regenerative resistor is detected,
an over-regeneration (alarm 30) is detected. The thermal protector terminals (G3, G4) are used when
double-protecting against overheating of the regenerative resistor. When double-protecting, construct a
sequence in which an emergency stop occurs if a current stops flowing between G3 and G4.
MDS-D-SVJ3
CNP2
P
C
D
Confirm that a short wire has been
connected between the P and D terminals.
Built-in
regenerative resistor
P
C
G4
G3
×
×
MDS-D-SVJ3
CNP2
P
DC