Control Voltage - Emerson CS Serie Guia Del Usuario

Safety Rating Data
Information

4.1.3 Control voltage

Always connect control voltage to the correct terminals:

110 to 240 Vac: CSL-CSR or
CAUTION

380 to 440 Vac: CSH-CSR
The installer must ensure that the external control circuits are insulated from human contact by at
least one layer of insulation (supplementary insulation) rated for use at the AC supply voltage.
WARNING
Figure 4-2 Control wiring options
Two-wire
110-240 Vac
380-440 Vac
Start/stop. To reset a trip, close then open
DI2.
Start.
For sizing of the control fuse, see Technical Data on page 17.
4.1.4 Motor thermistor
Motor thermistors can be connected directly to the Digistart CS terminals TH1, TH2. If motor thermistors are
not used, there must be a link between TH1, TH2 (the Digistart CS is supplied with a link fitted).
Figure 4-3 Motor thermistor connection
TH1 TH1
TH2 TH2
OK
4.1.5 Outputs
Main contactor output
The Main Contactor output (terminals COM2, RLO2) closes as soon as the soft starter receives a start
command and remains closed while the soft starter is controlling the motor (until the motor starts a coast to
stop, or until the end of a soft stop). The Main Contactor output will also open if the soft starter trips.
The Main Contactor output can be used to directly control a main contactor coil.
10
Mechanical
Electrical
Installation
Installation
CSH
4
CSL
CSR
DI1
1
DI2
E
CSH
4
CSL
CSR
DI1
1
DI2
E
TH1
TH2
OK
www.controltechniques.com
Programmable Diagnostics
Parameters
Three-wire
110-240 Vac
380-440 Vac
Stop. To reset a trip, close then open DI2.
Fuse (optional).
Technical Data Options
CSH
4
CSL
CSR
2
DI1
3
DI2
E
CSH
4
CSL
CSR
2
DI1
3
DI2
E
Digistart CS User Guide
Issue: 2