Power Connector - Control Techniques Midi-Maestro User Manual

Figure 6 Locations of the signal and power
connections in the Maxi-Maestro
Drive
Midi-Maestro and Maxi Maestro Drive
Note
Signal cables and power cables must be segregated
and wired through different trunking.

Power connector

Pin Description
No.
16 +DC
17 MOT1
18 MOT2
19 –DC
20 E
21 L1
22 L2
23 L3
24 EXT DBR
25 EXT DBR
An additional braking resistor for the Midi-Maestro Drive is
connected between pins 24 and 16.
The braking resistor for the Maxi-Maestro is connected between
pins 24 and 25.
I/O Notes
O +DC bus.
O + terminal for motor.
O – terminal for motor.
O –DC bus.
Ground.
I Phase 1 from three-phase
transformer.
Line 1 from single-phase
transformer.
I Phase 2 from three-phase
transformer.
Line 2 from single-phase
transformer.
I Phase 3 from three-phase
transformer.
Note — Transformer secondary
wiring must be delta connected.
The phase sequence has no
effect.
O External braking resistor.
O (Maxi-Maestro only)
External braking resistor.
5