Himel HAV SP Series, User Manual, Page: 158 / 161

Chapter V Basic Operation Instructions
157
Category
Terminal
label
Name Terminal Function description Specification
Relay output
terminal
TA1
TB1
TC1 Programmable
relay terminal
output
When not action
：
TA-TB normally
closed
；
TA-TC normally open
；
When action
：
TA-TB normally
open
；
TA-TC normally closed
（
See note F6.13 for details
）
Contact rating
NO
：
5A 250VAC
NC
：
3A 250VAC
TA2
TB2
TC2 Programmable
relay terminal
output
When not action
：
TA-TB normally
closed
；
TA-TC normally open
；
When action
：
TA-TB normally
open
；
TA-TC normally closed
（
See note F6.13 for details
）
Contact rating
NO
：
5A 250VAC
NC
：
3A 250VAC
TA3
TB3
TC3 Programmable
relay terminal
output
When not action
：
TA-TB normally
closed
；
TA-TC normally open
；
When action
：
TA-TB normally
open
；
TA-TC normally closed
（
See note F6.13 for details
）
Contact rating
NO
：
5A 250VAC
NC
：
3A 250VAC
Multi-function
input terminal
DI6
Multi-function
input terminal 6
Programmable definition:
switching input terminal of various
functions.
See chapter 4 Terminal Function
Parameters (Switching Input and
Output): input terminal function
description.(public side
：
COM)
（
See F6.05-6.08
）
DI7
Multi-function
input terminal 7
DI8
Multi-function
input terminal 8
Power
+24V +24Vpower supply
Digital signal power supply
Maximum output
current:200mA
COM
+24V power
public side
Digital signal input and public side
output
PLC
Multi-function
input public side
output
Public side DI6—DI8
With 24V short
circuit
6.3 Fault countermeasures and exception handling
Fault code Fault types Possible fault causes Countermeasures
E020
Closed loop feedback
loss alarm
Feedback line
disconnection
Check the feedback line
E021
Water pressure
overpressure alarm
The sensor feedback
signal is abnormal
Connection of detection sensor
The overpressure alarm Modify F8.29 settings