Nidec Digistart D3 User Manual

Digistart D3: User Guide 99
Issue: G
10.3 Emergency Run Operation
In normal operation the Digistart D3 is controlled via a remote two-wire signal (terminals DI2, +24V).
Emergency Run is controlled by a two-wire circuit connected to Input A (terminals DI4, +24V). Closing Input A causes
the Digistart D3 to run the motor and ignore certain trip conditions.
NOTE
Although the Emergency Run satisfies the functionality requirements of Fire Mode, Nidec does not
recommend its use in situations that require testing and/or compliance with specific standards as it is not
certified.
CAUTION
Continued use of Emergency Run is not recommended. Emergency Run may compromise the starter life
as all protections and trips are disabled.
Using the starter in 'Emergency Run' mode will void the product warranty.
RLC3
COM3
COM1
RLO1
+24V
0V
RLO2
COM2
RLO3
AO1
0V
COM4
RLC4
RLO4
TH2
TH1
DI2
+24V
DI3
+24V
DI4
+24V
+24V
+24V
DI5
PT4
PT5
PT3
CSR
CSL
CSH
DI1
E
1
10-210V
AC
+10%
-15%
220-440
VAC
+10%
-15%
6/T3
2/T1
4/T2
5/L3
3/L2
1/L1
E
08535.B
7
6
5
4
3
2
1
8
9
1
Control voltage
2
Remote control inputs
3
Motor thermistor input
4
RTD/PT100 input
5
24 VDC output
6
Relay outputs
7
Analog output
8
Three-phase supply
9
Motor terminals
S1
Start/stop contact
S2
Reset contact
S3
Emergency Run Contact
F1
Semiconductor fuses
(optional)
COM1,
RLO1
Relay output A
COM2,
RLO2
Run relay output
COM3,
RLC3,
RLO3
Relay output B
COM4,
RLC4,
RLO4
Relay output C
Parameter settings:
• Pr 3A Input A Function
• Select 'Emergency Run' - assigns Input A for Emergency Run function.
• Pr 15B Emergency Run
• Select 'Enable' - Enables Emergency Run mode.

Nidec Digistart D3 Specifications

General

Brand	Nidec
Model	Digistart D3
Category	Controller
Language	English