Instruction manual

8. SPECIFICATIONS
IMSRM15-E6
162
8.7 H-DO Module
8.7.1 Digital output module (H-DO-A, B)
Output
Output type: H-DO-A: Relay contact output or open collector output (Sink load)
H-DO-B: Relay contact output
Number of outputs: H-DO-A: 8 points
H-DO-B: 4 points
Number of common points: Relay contact output:
2 points (4 points/common): H-DO-A type
All channel independent common output: H-DO-B type
Open collector output:
1 point (8 points/common)
Isolation method: Photocoupler isolation
Relay contact output: Rating: 250 V AC, 24 V DC
Maximum load current:
1 A/point (Resistive load)
4 A/common (Resistive load) [Only for H-DO-A type]
Minimum switching voltage/current:
5 V DC, 10 mA
Contact type: 1a contact
Open collector output: Load voltage: 12 to 24 V DC
Maximum load current:
0.1 A/point
0.8 A/common
Only for H-DO-A type
Functions
Temperature alarm output: Select alarm (alarm 1 or alarm 2) is output to each channels.
AI alarm output: Select AI alarm (alarm 1 or alarm 2) is output to each channels.
Heater break alarm output: A heater break alarm is output for each channel when the heater is
broken.
Burnout alarm output: A burnout alarm is output for each channel when the input sensor is
broken.
Loop break alarm output: A loop break alarm is output for each channel when an error occurs in
the control system.
Self-diagnostic
Check item: RAM check
Watchdog timer
Operation at error occurrence in self-diagnosis:
FAIL lamp lights
Reset state