Atlas Copco GA 75 VSD

Minimum
setting
Factory
setting
Maximum
setting
Integration time sec 5 6 10
Minimum motor speed:
200 V and 230 V units rpm 700 700 1000
500 V and 575 V units rpm 600 600 1000
380 V, 400 V and 460 V units rpm 600 600 1000
Maximum RPM reduction % 75 100 100
Maximum motor speed: Pressure setpoint
7.5 bar
Pressure setpoint
13 bar
200 V and 230 V units rpm 2700 2060
500 V units rpm 2850 2175
575 V units rpm 2560 2100
380 V, 400 V and 460 V units rpm 2560 2100
Parameters
Minimum
setting
Factory
setting
Maximum
setting
Minimum stop time:
GA 75 VSD sec 5 5 30
GA 90 VSD sec 5 5 30
Power recovery time sec 10 10 3600
Restart delay sec 0 0 1200
Communication time-out sec 10 30 60
On air-cooled compressors also:
Fan motor starts per day 1 240 240
Protections
Minimum
setting
Factory
setting
Maximum
setting
Compressor element outlet temperature
(shut-down warning level)
˚C 50 110 119
Compressor element outlet temperature
(shut-down warning level)
˚F 122 230 246
Compressor element outlet temperature
(shut-down level)
˚C 111 120 120
Compressor element outlet temperature
(shut-down level)
˚F 232 248 248
Instruction book
54 2920 1634 04