CT-ERD ABB, CT-ERD Datasheet
CT-ERD
Manufacturer Part Number
CT-ERD
Description
TIMER, ON-DELAY, 7 RANGES
Manufacturer
ABB
Datasheet
1.CT-ERD.pdf
(2 pages)
Specifications of CT-ERD
Contact Configuration
SPCO
Nom Input Voltage
240VAC
Delay Time Range
0.05s To 100h
Adjustment Type
Screwdriver Slot
Relay Mounting
DIN Rail
Svhc
No SVHC (18-Jun-2010)
Coil Voltage Vac Nom
250V
Contact Current Ac Max
6A
5.40
See accessory pages for
specifications.
Approvals:
Accessories
17.5 mm Wide, 35 mm DIN
Rail Mounting
0.05 s ... 100 h in 7 Ranges
Repeat Accuracy ≤ ± 0.5%
6 A Isolated SPDT Relay
Output
2 LED's Indicate Status
24 ... 240 V AC; 24 ... 48 V DC
Delay On Make (ON Delay)
CT-ERD Timer
Relay Output
Operation
Delay On Make (ON-delay):
supply voltage, the time delay begins and the green
LED flashes. The output relay is de-energized before
and during the time delay. At the end of the time delay,
the output relay energizes and the red and green LEDs
glow. The output remains energized until supply voltage
is removed.
Reset: Removing supply voltage resets the time delay
and the output relay.
Connection
Face View
Ordering Table
Voltage Removed
Relay Energized
Voltage Applied
LED Operation
24 ... 240 V AC
24...48 V DC
Supply Voltage Time Ranges
Timing
0.05 ...
0.5 ... 10 s
5.0 ... 100 s
0.5 ... 10 m
5.0 ...100 m
0.5 ... 10 h
5.0 ... 100 h
Green LED
Flashing
OFF
ON
ON
1 s
Upon application of
1SVR 500 100 R 0000
Part Number
Red LED
OFF
OFF
N/A
ON
The time range selection switch displays the
longest time delay in the range in seconds,
minutes, or hours.
The time delay adjustment has a 0.5 to 10
reference dial. Use the time range setting as
a multiplier, 1s= x0.1, 100s = x10.
Function
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CT-ERD Summary of contents
Page 1
... Delay On Make (ON Delay) CT-ERD Timer Relay Output Operation Delay On Make (ON-delay): supply voltage, the time delay begins and the green LED flashes. The output relay is de-energized before and during the time delay. At the end of the time delay, the output relay energizes and the red and green LEDs glow ...
Page 2
... Delay On Make (ON Delay) CT-ERD Timer Relay Output Technical Data Input Voltage/Power Consumption A1-A2 Tolerance Frequency Time Delay Range Recycle Time Repeat Accuracy Time Delay vs Input Voltage Tolerance Time Delay vs Temperature Status Display Supply Voltage Output Relay Energized Output 15-16/18 Rated Voltage ...