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Control I/O (CN1) specifications
Pin
Symbol
1
+24 Vin
2
RUN
3
RESET
4
ECRST/ VSEL2
5
GSEL/ VZERO/ TLSEL Gain Switch Input, Zero Speed
6
GESEL/ VSEL1
7
NOT
8
POT
22
+CW/ PULS/ FA
23
-CW/ PULS/ FA
24
+CCW/ SIGN/ FB
−CCW/SIGN/ FB
25
9
/ALM
10
INP/TGON
11
BKIR
12
WARN
13
OGND
14
GND
15
+A
−A
16
−B
17
18
+B
19
+Z
−Z
20
21
Z
1.
Some alarms cannot be cleared using this input. For details, refer to 8-2 Alarm Table.
2.
This is OFF for approximately 2 seconds after turning ON the power.
Encoder connector (CN2) specifications
Pin
Symbol
1
E5V
2
E0V
3
NC
4
NC
5
S+
6
S−
Shell
FG
Power supply and alarm indicator (PWR and ALM)
Indicator
Color
PWR
Lit green
Lit orange
Lit red
ALM
Lights when an alarm has occurred
SmartStep 2 servo drive
Name
DC power supply input for control
RUN Command Input
Alarm Reset Input
Deviation Counter Reset Input or
Internally Set Speed Selection 2 Input
Designation Input, or Torque Limit
Switch Input
Electronic Gear Switch Input or
Internally Set Speed Selection 1 Input
Reverse Drive prohibit Input
Forward Drive prohibit Input
Reverse Pulses Input, Feed Pulses In-
put, or 90º Phase difference Pulses
(Phase A)
Forward Pulses Input, Direction signal,
or 90º Phase Difference Pulses
(Phase B)
Alarm Output
Positioning Completed Output or Ser-
vomotor Rotation Amount Detection
Output
Brake Interlock Output
Warning Output
Output Ground Common
Ground
Common
Encoder
Phase-A Output
Encoder
Phase-B Output
Encoder
Phase-Z Output
Phase-Z Output
Name
Encoder power supply +5 V
Encoder power supply GND
Encoder + phase S I/O
Encoder − phase S I/O
Shield ground
Status
Main power is ON.
Flashes at a 1-second intervals when
there is a warning (i.e., overload, ex-
cessive regenerative energy, or fan
speed error).
An alarm has occurred.
Function
Power supply input terminal (12 to 24 VDC) for sequence input (pin 1).
ON: Servo ON (Starts power to Servomotor.)
1
ON: Servo alarm status is reset.
Must be ON for 120 ms min.
Electronic Gear Switch Input or internally Set Speed Selection 1 Input *2
Reverse rotation overtravel input.
OFF: Prohibited, ON: Permitted
Forward rotation overtravel input.
OFF: Prohibited, ON: Permitted
Input terminals for position command pulses.
Line-driver input: Maximum response frequency: 500 kpps
Open-collector input: Maximum response frequency: 200 kpps
When the Servo Drive generates an alarm, the output turns OFF.
Outputs the holding brake timing signals. Release the holding brake when this
signal is ON.
The signal selected in the Warning Output Selection (Pn09) is output.
Ground common for sequence outputs (pins 9, 10, 11, and 12).
Common for Encoder output and phase-Z output (pin 21).
These signals output encoder pulses according to the
Encoder Dividing Ratio Setting (Pn44).
This is the line-driver output (equivalent to RS-422).
Outputs the phase Z for the Encoder (1 pulse/rotation).
This is the open-collector output.
Function
Power supply output for the encoder 5 V, 70 mA
Do not connect anything to these pins.
RS-485 line-driver I/O
Cable shield ground
2
3
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