maxon motor control
11
maxon motor
Operating Instructions
1-Q-EC Amplifier DEC Module 50/5
April 2015 Edition / document number 1094861_PDF_E - 05 / subject to change
5.1.5 «Set current limit»
The «Set current limit» input is used for setting the continuous output current
limitation in the range of 0.5...10 A.
The current set at the input «Set current limit» will stay available for an indefi-
nite period of time.
Note
Ö
The limiting value should be below the rated motor current (max. continu-
ous current) as shown on the motor data sheet (corresponds to line 6 in
maxon catalog).
Set value current
Pin number [25] «Set current limit»
Referenced to Ground
Pin number [24] «Gnd»
To parameterize the preferred current limiting value, an external resistor (at
least 62.5 mW) between current limiting input «Set current limit» Pin [25] and
ground «Gnd» Pin [24] must be added.
Current limit value
Resistance value (E24 series)
10 A
input floating
9 A
220 k
Ω
8 A
91 k
Ω
7 A
56 k
Ω
6 A
36 k
Ω
5 A
24 k
Ω
4 A
16 k
Ω
3 A
10.0 k
Ω
2 A
5.6 k
Ω
1 A
2.7 k
Ω
0.5 A
1.2 k
Ω
5.1.6 «Hall sensor 1», «Hall sensor 2», «Hall sensor 3»
Hall sensors are needed for detecting the rotor position and the actual speed.
The Hall sensor inputs are protected against overvoltage.
Hall sensor 1
Pin number [13] «Hall sensor 1»
Hall sensor 2
Pin number [15] «Hall sensor 2»
Hall sensor 3
Pin number [17] «Hall sensor 3»
Input voltage range
0 ... +5 V
Input impedance
22 k
Ω
pull-up resistor to 5 V
Voltage level «low»
max. 0.8 V
Voltage level «high»
min. 2.4 V
Continuous overvoltage protection
-30 ... +30 V
Suitable for Hall sensor IC‘s with Schmitt-Trigger behavior and open collector
or push-pull outputs.
