Control Techniques Midi-Maestro User Manual

Midi-Maestro and Maxi Maestro Drive
1
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 LED indication
LED indication of tachogenerator loss
Drive
NORMAL LED indication
Digital output indicates Drive status
Digital output indicates I
2
t limit
Analog output indicates motor current
Analog output indicates
TPRC
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)
AC supply
Minimum supply voltage — three-phase
Midi-Maestro
140 ×× 8/16
Midi-Maestro
140 ×× 14/28
Maxi-Maestro
200 ×× 25/50
105V 105 V
150 V
Minimum supply voltage — single-phase
Midi-Maestro
140 ×× 8/16
Midi-Maestro
140 ×× 14/28
Maxi-Maestro
200 ×× 25/50
100 V
When the Drive is operated on a single-phase supply,
the characteristics of the Drive are modified as follows:
I
NOM
–25%
I
PEAK
–25%
Voltage to the motor –25%
Power cables
2.5 mm
2
(AWG 14)
Signal wiring
0.5mm
2
(AWG 20)
Output ratings
Model Max output
voltage
Nominal
current
Peak current
for 2 seconds
Midi-Maestro
140 ×× 8/16
150 V DC
105 V AC
8 A 16 A
Midi-Maestro
140 ×× 14/28
150 V DC
105 V AC
14 A 28 A
Maxi-Maestro
200 ×× 25/50
212 V DC
150 V AC
25 A 50 A
Current tolerance
±10%
Internal braking resistor
Midi-Maestro
140 ×× 8/16
Midi-Maestro
140 ×× 14/28
Maxi-Maestro
200 ×× 25/50
10 Ω, 200 W
Min value = 10 Ω
10 Ω, 200 W
Min value = 10 Ω
8 Ω, 300 W
Min value = 8 Ω
I
PEAK
= 40 A

Control Techniques Midi-Maestro Specifications

General

Brand	Control Techniques
Model	Midi-Maestro
Category	DC Drives
Language	English