Power Supply Specifications And Isolation - YOKOGAWA UT Advanced UT32A User Manual

19.1.15 Power Supply Specifications and Isolation
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IM 05P01D31-01EN
• Power supply:
Rated voltage: 100 – 240 V AC (+10%/-15%), 50/60 Hz
24 V AC/DC (+10%/-15%) (for /DC option)
• Power consumption:
UT35A: 18 VA (DC:9 VA, AC: 14 VA if /DC option is specified)
UT32A: 15 VA (DC:7 VA, AC: 11 VA if /DC option is specified)
• Data backup: Nonvolatile memory
• Power holdup time: 20 ms (for 100 V AC drive)
• Withstanding voltage
- Between primary terminals and secondary terminals: 2300 V AC for 1 minute
- Between primary terminals: 1500 V AC for 1 minute
- Between secondary terminals: 500 V AC for 1 minute
(Primary terminals: Power (*) and relay output terminals; Secondary terminals: Analog
I/O signal terminals, contact input terminals, communication terminals, and functional
grounding terminals.)
(*): Power terminals for 24V AC/DC models are the secondary terminals.
• Insulation resistance
Between power supply terminals and a grounding terminal: 20 MΩ or more at 500 V
DC
• Isolation specifications
PV (universal ) input terminals
Control, retransmission (analog) output terminals
(not isolated between the analog output terminals)
Valve position (feedback) input terminals
Control relay (contact point c/contact point a x 2) / Triac output terminals
Alarm-1 relay (contact point a) output terminals
Alarm-2 relay (contact point a) output terminals
Alarm-3 relay (contact point a) output terminals
Position proportional relay output terminals
Contact input terminals (All)
RS-485 communication terminals (2 ports)
24 V DC loop power supply terminals
Contact output (transistor) terminals
Ethernet communication terminal
PROFIBUS-DP/DeviceNet/CC-Link communication terminals
Current transformer input terminals
The circuits divided by lines are insulated multually.
19.1 Hardware Specifications
Internal Power
circuits supply
19-7
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