Standstill Monitoring Unit

G9SX-SM

Sensor-less Monitoring of Standstill for Machines with Long Inertia

Ratings
Power input
Model
G9SX-SM032-[]
Rated supply voltage
24 VDC
Operating voltage range
-15% to 10% of rated supply voltage
Power consumption *
4 W max.
* Power consumption of loads not included.
Inputs
Model
G9SX-SM032-[]
Rated Input voltage
Standstill detection input (between Z1 and Z2 and between Z3 and Z4) *1
480 VAC max. (120Hz max.) *2
Internal impedance
Standstill detection input: Approx. 660
EDM input: Approx. 2.8
*3
*1. Input the motor phase-to-phase voltage between Z1 and Z2 and between Z3 and Z4.
*2. When a motor with AC240V or more is used, connect neutral point of the power supply to earth.

*3. Use a contact that is applicable to
microloads (24 VDC, 5 mA) for connection to the EDM input.
Outputs
Model
G9SX-SM032-[]
Safety standstill detection output * 1
Source output (PNP), load current: 0.3 A DC max. * 2
Auxiliary output (output monitor/error)
Source output (PNP), load current: 100 mA DC max.
*1. While safety standstill detection outputs are in the ON state, the following pulse signal is output continuously for output circuit diagnosis. When using the safety standstill detection outputs as input signals to control devices (i.e. Programmable Controllers), consider the pulse signal shown below.
*2. The following derating is required when Units are mounted side-by-side.
       G9SX-SM032-[]: 0.2
A max. load current
Characteristics
Model
G9SX-SM032-[]
Over-voltage category (IEC/EN 60664-1)
III
Response time
(Standstill detection ON to OFF)
50 ms max.
Detection voltage
(Standstill detection voltage)
Standard Configuration: 10 mV max.
User Configuration: 100 mV max.
ON-state residual voltage
3.0 V max. (Safety standstill detection outputs and auxiliary outputs)
OFF-state leakage current
0.1 mA max. (Safety standstill detection outputs and Auxiliary outputs)
Maximum cable length for standstill
detection inputs and EDM inputs
100 m max. (External connection impedance: 100 Ω max. and 10 nF max.)
Insulation
resistance
Between standstill
detection inputs

(Z1,Z2Z3,Z4)
100 MΩ min., 500 VDC megger
Between standstill
detection input

terminals connected

together and other

input and output

terminals connected

together
Between all terminals
without standstill

detection input

terminals connected

together and DIN rail
Between standstill
detection input

terminals connected

together and DIN rail.
Dielectric
strength
Between standstill
detection inputs

(Z1,Z2
Z3,Z4)
2,000 VAC for 1 min.
Between standstill
detection input

terminals connected

together and Power

supply input terminals

and other input and

output terminals

connected together
2,200 VAC for 1 min.
Between all terminals
without standstill

detection input

terminals connected

together and DIN rail
500 VAC for 1 min.
Between standstill
detection input

terminals connected

together and DIN rail.
2,200 VAC for 1 min.
Vibration resistance
Frequency: 10 to 55 to 10 Hz, 0.375-mm single amplitude
(0.75-mm double amplitude)
Mechanical
shock

resistance
Destruction
300 m/s2
Malfunction
100 m/s2
Ambient temperature
-10 to +55 °C (no icing or condensation)
Ambient humidity
25% to 85%
Degree of protection
Terminal block : IP20, Main body : IP40
Terminal tightening torque *
0.6Nm
Weight
Approx. 200 g
* For G9SX-SM032-RT (with screw terminals)