User Setting for Voltage & Frequency
Standard 3-Phase Sensing on 3 and 4 Pole Units
Source 1
Under Voltage "Restore"
Factory Default: 90%
This adjustment determines the minimum acceptable voltage required to transfer to Source 1.
Adjust via the SET menu. Range is 85% to 100% in 1% increments (see page 18).
Once satisfied, the T timer will begin timing to transfer to Source 1.
Under Voltage "Fail"
Factory Default: 80%
This adjustment determines the low voltage threshold. Adjust via the SET menu. Range is 75% to 98% in 1% increments (see page 18).
"Fail" must be a minimum of 2 % below "Restore" setting. Once voltage falls below threshold, P timer begins timing to signal Source 2 Generator to start.
Under Frequency "Restore"
Factory Default: 95%
This adjustment determines the minimum acceptable frequency required to transfer to Source 1.
Adjust via the SET menu. Range is 90% to 100% in 1% increments (see page 18).
Once satisfied, the T timer will begin timing to transfer to Source 1.
Under Frequency "Fail"
Factory Default: 90%
This adjustment determines the low frequency threshold. Adjust via the SET menu. Range is 88% to 98% in 1% increments (see page 18).
"Fail" must be a minimum of 2 % below "Restore" setting. Once satisfied, the T timer will begin timing to transfer to Source 1.
Over Frequency "Restore"
Factory Default: 102%
This adjustment determines the minimum acceptable Over Frequency threshold at which the transfer switch is allowed to
Adjust via the SET menu. Range is 102% to 104% in 1% increments (see page 18). “Restore” must be a minimum of 1% below “Fail” setting.
Over Frequency "Fail"
Factory Default: 105%
This adjustment determines the maximum acceptable Over Frequency.
Adjust via the SET menu. Range is 103% to 105% in 1% increments (see page 18).Once exceeded, the P timer begins timing to signal the generator to start.
Source 2
Under Voltage "Restore"
Factory Default: 90%
This adjustment determines the minimum acceptable voltage required to transfer to Source 2.
Adjust via the SET menu. Range is 85% to 100% in 1% increments (see page 18).
Once satisfied, the W timer will begin timing to transfer to Source 2.
Under Voltage "Fail"
Factory Default: 80%
This adjustment determines the low voltage threshold. Adjust via the SET menu. Range is 75% to 98% in 1% increments (see page 18).
"Fail" must be a minimum of 2 % below "Restore" setting. Once voltage falls below threshold, T timer will be bypassed to expedite the transfer to Source 1.
Over Voltage "Fail"
Factory Default: 110%
This adjustment determines the maximum acceptable Over Voltage. Adjust via the SET menu. Range is 105% to 110% in 1% increments (see page 18). Once exceed- ed, the T timer will be bypassed to expedite the transfer to Source 1.
Over Voltage "Restore"
Factory Default: 105%
This adjustment determines the minimum acceptable Over Voltage threshold at which the transfer switch is allowed to transfer to Source 2. Adjust via the SET menu. Range is 103% to 105% in 1% increments (see page 18). “Restore” must be a minimum of
2% below “Fail” setting.
Under Frequency "Restore"
Factory Default: 95%
This adjustment determines the minimum acceptable frequency required to transfer to Source 2.
Adjust via the SET menu. Range is 90% to 100% in 1% increments (see page 18).
Once satisfied, the W timer will begin timing to transfer to Source 2.
Under Frequency "Fail"
Factory Default: 90%
This adjustment determines the low frequency threshold. Adjust via the SET menu. Range is 88% to 98% in 1% increments (see page 18).
"Fail" must be a minimum of 2 % below "Restore" setting. Once satisfied, the W timer will begin timing to transfer to Source 2.
Over Frequency "Fail"
Factory Default: 105%
This adjustment determines the maximum acceptable Over Frequency. Adjust via the SET menu. Range is 103% to 105% in 1% increments (see page 18). Once exceeded, the T timer will be bypassed to expedite the transfer to Source 1.
Over Frequency "Restore"
Factory Default: 102%
This adjustment determines the minimum acceptable Over Frequency threshold at which the transfer switch is allowed to
(see page 18). “Restore” must be a minimum of 1% below “Fail” setting.
■ GE Zenith Controls | 9 ■ |
