GE 8117-DO-DC 8-channel DO, 2-60Vdc isolated, unpowered
8118-DO-AC• 8 fully isolated semiconductor
switched outputs
• Controls solenoids and relays
• For load supplies of up to 265 V ac
• Discrete or pulsed outputs
• 1A per channel switched
MODULE SPECIFICATION
See also System Specification
OUTPUTS
Number of channels
• 8
Output voltage range
• 20–265 V ac
Frequency
• 50 / 60 Hz
ON voltage drop
• < 1.2 V
OFF leakage current
• 4 mA
Switched current per channel†
• Continuous – 1 A*
• For < 100ms – 5 A
• For < 20ms – 20 A
Minimum load current, per channel
• @ 115 V ac – 11 mA
• @ 230 V ac – 5 mA
CONFIGURABLE PARAMETERS
Output initialisation state
• Predefined value
Fail-safe
• Predefined value / last value
Output
• Discrete, momentary or continuous pulse‡
Pulse width
• 2 ms to 130 s
RESPONSE TIME
Response time (max.)
• From Railbus command to output change –
2 ms + 11/42 cycle of mains frequency
POWER SUPPLIES
Railbus (12V) current
• 75 mA (typ.)
• 125 mA (max.)
Bussed Field Power
• Not required
MECHANICAL
Module Key Code
• F4
Module width
• 42 mm
Weight
• 220 g

8142-DO-DC
• 16 output channels
• Controls solenoids and relays
• Common load supply for up to 42V dc
• Discrete or pulsed outputs
• 0.5A per channel switched current
• 12-42V dc bussed field power required
MODULE SPECIFICATION
See also System Specification
OUTPUTS
Number of channels
• 16
Output voltage range
• 12–42 V dc
ON voltage drop
• <0.25V @ 0.5A for one channel on
• <0.75V @ 6A total for module
OFF leakage current
• < 1mA
Output current
• Per channel – 0.5A (max)
• Per module – 6A (max)
• Channel current – Thermally limited to 3A (typ)
at 25°C, short circuit protected
CONFIGURABLE PARAMETERS
Channel Status*
• Active / Inactive
Output initialization state
• Predefined value
Fail-safe
• Predefined value / last value
Output
• Discrete, momentary or continuous pulse
Pulse width
• 500ms to 60s
ELECTRICAL ISOLATION
Channel to railbus
• 275Vrms (max)
Channel to Channel and Ch+ to Ch-
• <50V
RESPONSE TIME
I/O response time
• Railbus command to output change – 2ms (max)
POWER SUPPLIES
Railbus (12V) Current
• 125mA (max)
• 80mA (typ)
Bussed Field Power
• 12 to 42V dc, 6A (max)
MECHANICAL
Module Key Code
• B4, non-arcing
Module width
• 42mm
Weight
• 220g