DRV-28 inverter
s Installation guide
-28-
Terminal
name
Instruction
+24V—H2 STO input 2
contact, STO acts when the contact opens, and the inverter
stops output;
2.
Safety input signal wires use shielded wire whose length is
within 25m;
3.
H1 and H2 terminals are short connected to +24V by default;
it is required to remove the short-contact tag on the terminal before
using STO function.
4.4.2 Input/output signal connection diagram
Set NPN /PNP mode and internal/external power via U-type short-contact tag. NPN internal mode is
adopted by default.
U-type short-
contact tag of H2
and +24V
U-type short-contact
tag of COM and
+CME
U-type short-
contact tag of
+24V and PW
U-type short-
contact tag of H1
and +24V
+24V
485+
+24V
CME
485-485G
COMCOM
PE H2
R01CR02C
H1 +24V
R01BR02B
PW COM HDO Y1 AO1GND
S1
S2
S3
S4 HDIA HDIB AI1 AI2 +10V
R01AR02A
USB port
Keypad port
Fig 4.16 Position of U-type short-contact tag
Note: As shown in Fig 4.16, the USB port can be used to upgrade the software, and the keypad port
can be used to connect an external keypad. The external keypad cannot be used when the keypad of
the inverter is used.
If input signal comes from NPN transistors, set the U-type short-contact tag b24V and PW
based on the power used according to the figure below.
