GE MM3, Instruction Manual, Page: 10 / 230

1–2 MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL
OVERVIEW CHAPTER 1: INTRODUCTION
three-phase overload protection (49/51), single-phase, four (4) control inputs (start, stop,
local isolator, contactor A status) plus 4 programmable inputs. The full version adds the
following additional features:
• Second contactor control (wye/delta, two speed, reversing, etc.) including all
timers, relays and control inputs
• Undercurrent/underpower protection (ANSI 37)
• Thermistor (ANSI 49) input which accepts PTC and NTC thermistor types
• Analog input/output
• Six (6) additional programmable inputs plus two (2) control inputs
Table 1–1: MM3 Motor Manager 3 Options
Option 1 (standard) Option 2 (full)
Contactor A Contactor A
Serial communications Serial communications
Four (4) programmable inputs Ten (10) programmable inputs
Four (4) control inputs Six (6) control inputs
Three (3) phase inputs Three (3) phase inputs
One (1) ground fault input One (1) ground fault input
Auxiliary 1 relay Aux 1 relay
Auxiliary 2 / ESD relay Contactor B
VT input Auxiliary 2 / ESD relay
VT input
Thermistor input
Analog input
Analog output