2) Except STO input terminal 37.
STO terminal 37
1, 2)
(terminal 37 is fixed PNP logic)
Voltage level
0–24 V DC
Voltage level, logic 0 PNP
<4 V DC
Voltage level, logic 1 PNP
>20 V DC
Maximum voltage on input
28 V DC
Typical input current at 24 V
50 mA rms
Typical input current at 20 V
60 mA rms
Input capacitance
400 nF
All digital inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
1) See chapter 4.7.1 Safe Torque Off (STO) for further information about terminal 37 and STO.
2) When using a contactor with a DC coil inside in combination with STO, it is important to make a return way for the current
from the coil when turning it off. This can be done by using a freewheel diode (or, alternatively, a 30 V or 50 V MOV for quicker
response time) across the coil. Typical contactors can be bought with this diode.
Analog inputs
Number of analog inputs
2
Terminal number
53, 54
Modes
Voltage or current
Mode select
Switch S201 and switch S202
Voltage mode
Switch S201/switch S202 = OFF (U)
Voltage level
-10 V to +10 V (scaleable)
Input resistance, R
i
Approximately 10 k
Ω
Maximum voltage
±
20 V
Current mode
Switch S201/switch S202 = ON (I)
Current level
0/4 to 20 mA (scaleable)
Input resistance, R
i
Approximately 200
Ω
Maximum current
30 mA
Resolution for analog inputs
10 bit (+ sign)
Accuracy of analog inputs
Maximum error 0.5% of full scale
Bandwidth
100 Hz
The analog inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
Mains
Functional
isolation
PELV isolation
Motor
DC-bus
High
voltage
Control
+24 V
RS485
18
37
130BA117.10
Illustration 8.1 PELV Isolation
Pulse/encoder inputs
Programmable pulse/encoder inputs
2/1
Terminal number pulse/encoder
29
1)
, 33
2)
/32
3)
, 33
3)
Maximum frequency at terminal 29, 32, 33
110 kHz (Push-pull driven)
Maximum frequency at terminal 29, 32, 33
5 kHz (Open collector)
Minimum frequency at terminal 29, 32, 33
4 Hz
Voltage level
See
parameter group 5-1* Digital Inputs
in the
programming guide
.
Maximum voltage on input
28 V DC
Input resistance, R
i
Approximately 4 k
Ω
Pulse input accuracy (0.1–1 kHz)
Maximum error: 0.1% of full scale
Specifications
Operating Guide
MG33AT02
Danfoss A/S © 05/2018 All rights reserved.
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