Installation
10 Automatic Transfer Switch Owner’s Manual
3.11.1— Dip Switch 1
All voltages listed, are Line - Line and all three phases
are checked.
All voltages are expressed as line - line, but checked as
line - neutral, line - neutral and line - line.
As of the V1.8 software release, there will only be one
PCB for all voltage codes.
• TDN/INPHASE - Dip1- switch 4: Set this switch to
ON to select TDN type transfers.
• CTTS/OTTS - Dip1 - switch 5: Set this switch to
OFF for a OTTS type transfer switch.
• THREE PHASE - Dip1 - switch 6: Set this switch to
ON for 3 phase wiring. Set this switch to OFF for
single-phase wiring.
• MODBUS ADDRESS - Dip1- switches 7,8: The
base Modbus address for the transfer switch is set
at 240. The transfer switch will NOT respond to the
universal address 250. By changing the address
dip switches, the full range of available addresses
for transfer switches is:
3.11.2— Dip Switch 2
•
60/50 Hz - Dip2 - switch 1: Set this switch to ON for
a 60Hz system. This setting is only used if the com-
munications fail. Normally it will be overridden by
the target frequency setting in the G/H panel. The
Generator and Utility must be within 1Hz of this
nominal frequency for an inphase transfer to take
place.
3.11.3— Switches 2 to 6
These switches no longer have any function.
3.11.4— Switches 7 and 8
These switches select the communications baud rate,
they are for future development and should currently both
be set to off (4800 baud).
3.11.5— Synchronization Limits
Synch requirements are:
• Generator frequency within 1Hz of nominal
• Voltage within User Programmed limits
• Absolute Voltage difference within +/- 6V
• Generator/Utility Frequency difference within
+ 0.2/- 0.0 Hz
• Phase difference within - 7 / +0 degrees
(i.e. Generator voltage is earlier than Utility and catching
up, this gives some compensation for the transfer switch
closing delay).
Voltage Codes
THREE PHASE DIP SWITCH SELECTED
Code Dip1_3 2 1
0 = 480 Vac 0 0 0
1 = 600 Vac 0 0 1
2 = 415 Vac 0 1 0
3 = 240 Vac 0 1 1
4 = 220 Vac 1 0 0
5 = 208 Vac 1 0 1
6 = 480 Vac (spare) 1 1 0
7 = 480 Vac (spare) 1 1 1
SINGLE PHASE DIP SWITCH SELECTED
Code Dip1 – 3 2 1
0 = xxx Vac 0 0 0
1 = xxx Vac 0 0 1
2 = xxx Vac 0 1 0
3 = 240 Vac 0 1 1
4 = 220 Vac
(typically 50Hz)
1 0 0
5 = xxx Vac 1 0 1
6 = xxx Vac 1 1 0
7 = xxx Vac 1 1 1
Modbus Address Dip1 – 8 7
GenLink DCP
Switch Number
240 0 0 1
241 0 1 2
242 1 0 3
243 1 1 4
Baud Rate Dip 8 7
4800 0 0
9600 0 1
38400 1 0 (V1.8)
57600 1 1 (V1.8)
To Next Page
Loading...
Need help?
General
