Woodward MRM4, Manual, Page: 280 / 460

Protective Elements
Parameter Description Setting range Default Menu path
ZSS Zero Speed Switch
Only available if: ZSS =
active
-.-,
DI Slot X1.DI 1,
DI Slot X1.DI 2,
DI Slot X1.DI 3,
DI Slot X1.DI 4,
DI Slot X1.DI 1,
DI Slot X1.DI 2,
DI Slot X1.DI 3,
DI Slot X1.DI 4,
DI Slot X1.DI 5,
DI Slot X1.DI 6,
DI Slot X1.DI 7,
DI Slot X1.DI 8
-.- [Protection Para
/Global Prot Para
/MStart
/Motor Inputs]
t-Blo-IOC Phase Overcurrent Start
Delay. Phase
Overcurrent elements are
blocked for the time
programmed under this
parameter, while the
motor is starting. 0.03 - 1.00s 0.05s [Protection Para
/Global Prot Para
/MStart
/Start Delay Timer]
t-Blo-GOC Ground Overcurrent Start
Delay. Ground
Overcurrent elements are
blocked for the time
programmed under this
parameter, while the
motor is starting. 0.03 - 1.00s 0.08s [Protection Para
/Global Prot Para
/MStart
/Start Delay Timer]
t-Blo-I< Underload Start Delay.
37[x] elements are
blocked for the time
programmed under this
parameter, while the
motor is starting. 0 - 1200s 60s [Protection Para
/Global Prot Para
/MStart
/Start Delay Timer]
t-Blo-IUnbalance Current Unbalance Start
Delay. 46[x] elements
are blocked for the time
programmed under this
parameter, while the
motor is starting. 0 - 1200s 10s [Protection Para
/Global Prot Para
/MStart
/Start Delay Timer]
t-Blo-JAM Jam Start Delay. 50J[x]
elements are blocked for
the time programmed
under this parameter,
while the motor is
starting. 0 - 1200s 60s [Protection Para
/Global Prot Para
/MStart
/Start Delay Timer]
Page 280 EN MRM4 01/11