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Pin# Default Function
Type/Description
Notes
1
0V Common
Common for external analog signals
2
Frequency reference 1
Single ended analog input 11 bit
0 to +10 Vdc, 0-20 mA or 4-20 mA or 20-4 mA or 20-0 mA
4
+10 Vdc user supply
Reference supply
5 mA Output current
5
Frequency reference 2
Single ended analog input 11 bit or digital input
0 to +10 Vdc or 0 to +24 Vdc
7
Output frequency
Single ended analog output
0 to +10 Vdc
9
+24 Vdc user supply
Digital I/O supply
100 mA
10
At zero frequency
Digital I/O 1
0 to +24 Vdc
11
Enable*
Digital input 2
0 to +24 Vdc
12
Run forward
Digital input 3
0 to +24 Vdc
13
Run reverse
Digital input 4
0 to +24 Vdc
14
Analog input 1/2 select
Digital input 5
0 to +24 Vdc
31(35)**
Safe Torque Off/Drive enable
STO 2
0 to +24 Vdc
32(36)**
0V STO 2
0V STO 2
0V common for STO 2
33(32)**
0V STO 1
0V STO 1
0V common for STO 1
34(31)**
Safe Torque Off/Drive enable
STO 1
0 to +24 Vdc
41
Status relay (drive OK)
Normally open contact
2 A, 240 Vac, 0.5 A, 30 Vdc inductive load
42
51 †
0V common
Common for backup supply
52 †
+24 Vdc external supply
Backup control supply
24 Vdc, 40W
Notes * C300 uses STO, so terminal 11 is unassigned ** Frames 1 to 4 (Frames 5 to 9) - different terminals by frame size
Frames 1 to 4 - the 0V terminals on the Safe Torque Off are isolated from each other and the 0V common Frames 5 to 9 - the 0V terminals on the Safe Torque Off are not isolated from each other and the 0V common The Safe Torque Off / Drive enable terminal is a positive logic only input † Terminal 51 and 52 must be connected to an external 24 V power supply if backup is required (frame sizes 6-9 only)
19
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