Hitachi NES1-002LB, Quick Reference Manual

Page: 89 / 295

Chapter 7 Explanation of Functions
7 - 14
7.3. 5 Intelligent output terminal a/b (NO/NC) selection
The intelligent output terminal a/b (NO/NC) selection function allows you to specify a-contact or b-contact
output for each of the intelligent output terminal [11] and the alarm relay terminal.
The intelligent output terminal [11] are used for open-collector output, and the alarm relay terminal is used
for relay output.
Item Function code Data Description
Terminal active state C031
00 a-contact (NO)
01 b-contact (NC)
Alarm relay active state C036
00 a-contact (NO)
01 b-contact (NC)
- An a-contact turns on the output signal when closed and turns it off when opened.
- A b-contact turns on the output signal when opened and turns it off when closed.
(1) Specifications of intelligent output terminal [11]
Setting of C031 Power supply Output signal
00
(a-contact)
ON
OFF
ON
OFF －
01
(b-contact)
ON
ON
OFF
OFF
－
(2) Specifications of alarm relay terminal
Example of operation as an alarm output terminal
Setting
of C036
Power
supply Inverter
status
Output terminal state
AL1-AL0 AL2-AL0
00
ON
Error Closed Open
Normal Open Closed
OFF
－
Open Closed
01
(default)
ON
Error Open Closed
Normal Closed Open
OFF
－
Open Closed
Electric characteristics
(Between terminal[11] and CM2)
Voltage drop when turned on: 4 V or less
Allowable maximum voltage: 27 VDC
Allowable maximum current: 50 mA
Resistance load Inductive load
AL1-AL0
Maximum contact
capacity
250 VAC, 2 A
30 VDC, 3 A
250 VAC, 0.2 A
30 VDC, 0.6 A
Minimum contact
capacity
100 V AC, 10 mA
5 VDC, 100 mA
AL2-AL0
Maximum contact
capacity
250 VAC, 1A
30 VDC, 1A
250 VAC, 0.2 A
30 VDC, 0.2 A
Minimum contact
capacity
100 VAC, 10 mA
5 VDC, 100 mA
Inside the
inverter
CM2 11
Inside the
inverter
AL0 AL1 AL2