Table of Contents
3.5
Signal connections
Signal cables and power cables must be segregated and wired through different
NOTE
trunking.
Table 3.1 Signal connections common to both mounting kits
Terminal
Description
No.
I
1
MOT
2
Protection active
3
TPRC
4
0V
5
-10V reference
6
+10V reference
7
Enable
Speed reference
8
(non-inverting input)
9
0V
Speed reference
10
(inverting input)
Tacho
11
(non-inverting input)
Tacho
12
(inverting input)
DC supply connections for 3MB
13
14
DC supply connections for 2MH
13 + 14
15 + 16
Motor connections for 3MB
15
16
17
Motor connections for 2MH
17
18
Mini Maestro User Guide
Issue Number: 5
I/O
Analog signal proportional to the effective current in the motor.
O
Output signal ± 8V at maximum current.
NPN open-collector output 100mA, 47V. Use this to enable external
O
protection devices when the drive trips.
Analog signal proportional to the value of the requested current.
Signal range ±10V. When at ±10V the drive generates peak current.
I/O
When used as an input, and the same voltage range is applied, the drive
becomes a current amplifier using the applied voltage as current
reference.
Signal common
O 3mA max
O 3mA max
When a 10V DC to 30V DC signal is applied to this terminal, the drive is
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enabled. When the signal is discontinued, the drive is disabled (0V).
Input impedance = 47kW
When a differential signal from the external controller is not available,
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connect terminal 10 to terminal 9.
Signal common.
The speed reference signal input is a differential input to minimize noise
I
problems.
I
Tachogenerator signal.
I
Tachogenerator signal.
+DC
I
-DC
I
+DC
I
-DC
I
Motor M1
O
Not used
Motor M2
O
Motor M1
O
Motor M2
O
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Notes
Motor positive
Motor negative
Motor positive
Motor negative
17
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