Features; Data - Control Techniques Midi-Maestro User Manual

Features

Selectable options
Speed control with armature feedback
Speed control with tachogenerator feedback
Acceleration and deceleration ramps
Tachogenerator loss-protection
Adjustments
Full-scale speed
Current limit
Dynamic gain
Derivative action
Reference speed offset compensation
Ramp gradient
Diagnostic functions
I 2 t indication
LED
indication of tachogenerator loss
LED
Drive
NORMAL LED
Digital output indicates Drive status
Digital output indicates I
Analog output indicates motor current
Analog output indicates

Data

Analog speed reference input
±10V (10kΩ input impedance)
Error amplifier temperature drift
1.3 µV / °C
Tachogenerator feedback control range
1 to 5000
Minimum tachogenerator signal
at maximum speed
5V
Armature feedback control range
150 ÷ 3000
Ambient temperature
Operating temperature range: –10°C (50°F)
to +50°C (122°F)
Midi-Maestro and Maxi Maestro Drive
indication
2 t limit
TPRC
AC supply
Minimum supply voltage — three-phase
Midi-Maestro Midi-Maestro
140 × × 8/16 140 × × 14/28
105V 105 V
Minimum supply voltage — single-phase
Midi-Maestro Midi-Maestro
140 × × 8/16 140 × × 14/28
100 V
When the Drive is operated on a single-phase supply,
the characteristics of the Drive are modified as follows:
I
NOM
I
PEAK
Voltage to the motor
Power cables
2.5 mm 2 ( )
AWG 14
Signal wiring
0.5mm 2 ( )
AWG 20
Output ratings
Model Max output
voltage
Midi-Maestro 150 V
140 × × 8/16
105 V
Midi-Maestro 150 V
140 × × 14/28
105 V
Maxi-Maestro 212 V
200 × × 25/50
150 V
Current tolerance
±10%
Internal braking resistor
Midi-Maestro Midi-Maestro
140 × × 8/16 140 × × 14/28
10 Ω, 200 W 10 Ω, 200 W
Min value = 10 Ω Min value = 10 Ω
Maxi-Maestro
200 × × 25/50
150 V
Maxi-Maestro
200 × × 25/50
–25%
–25%
–25%
Nominal Peak current
current for 2 seconds
8 A
DC
AC
14 A
DC
AC
25 A
DC
AC
Maxi-Maestro
200 × × 25/50
8 Ω, 300 W
Min value = 8 Ω
I = 40 A
PEAK
16 A
28 A
50 A
1