Sigma-5 servo drive
9
I/O signals (CN1) - output signals
I/O signals (CN8) - safety signals
Terminal specifications
Encoder connector (CN2)
Pin No.
Signal Name
Function
3
4
Common
ALM+
ALM-
Servo alarm: Turns OFF when an error is detected.
1
2
/BK+
(/SO1+)
/BK-
(/SO1-)
Brake interlock signal
Controls the brake. The brake is released when the signal turns ON.
Allocation can be changed to general-purpose output signals (/SO1+, /SO1-).
23
24
25
26
/S
O2+
/S
O2-
/S
O3+
/S
O3-
General-purpose output signal.
Note: Set the parameter to allocate a function.
16
FG
Signal ground:
Connected to frame ground if the shield wire of the I/O signal cable is connected to the connector shell.
17
1
8
PAO
/PAO
Phase-A signal
Dividing ratio can be set by parameter
(proper line receiver is SN75175 manufactured by Texas instruments or the equivalent
corresponding to MC34
8
6)
19
20
PBO
/PBO
Phase-B signal
21
22
PCO
/PCO
Phase-C signal
5
Reserved
-
Terminal not used. Do no connect.
Pin No.
Signal Name
Function
4
3
Common
/HWBB1+
/HWBB1-
Hard wire baseblock input 1
6
5
/HWBB2+
/HWBB2-
Hard wire baseblock input 2
8
7
EDMI+
EDMI-
Monitored circuit status output 1:
ON when the hard wire baseblock function is normally activated.
1
2
Reserved
-
Terminals not used.
Do not connect.
Symbol
Name
Function
L1, L2 or
L1, L2, L3
Main circuit AC input terminal
AC power input terminals for the main circuit
U, V, W
Servo motor connection terminal
Terminals for outputs to the servo motor.
L1C, L2C
Control power input terminal
AC power input terminals for the control circuit.
24V, 0
24V DC power input terminals for the control circuit.
Frame ground
Ground terminal. Ground to a maximum of 100
Ω
. (class 3).
B1/
⊕
, B2, B3
or
B1, B2, B3
Main circuit DC output terminal
Up to 400 W:
If the regenerative capacity is insufficient, connect an external regenerative resistor
(option) between B1/
⊕
and B2.
From 500 W to 5 kW:
Normally short B2 and B3. If the internal regenerative resistor is insufficient, remove
the wire between B2 and B3 and connect an external regenerative resistor between
B1/
⊕
and B2.
1,
2
DC reactor connection terminal for
suppressing power supply harmonic
waves
Normally, short
1 and
2.
If a countermeasure against power supply harmonic waves is needed, connect a DC reactor
between 1
and 2.
Pin No.
Signal Name
Function
1
E5V
Encoder power 5 V
2
E0V
Encoder power supply ground
3
BAT+
B (used only with absolute encoder)
4
BAT–
Battery – (used only with absolute encoder)
5
S+
Encoder serial signal input
6
S–
Encoder serial signal input
