Voltage level at digital output
Maximum output current (sink and source)
Voltage level at digital output
Maximum output current at digital output
Maximum load at digital output
1
Terminals 27 and 29 can also be programmed as input.
2
Terminals 42 and 45 can also be programmed as analog output.
The digital outputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
6.4.9 Control Card, RS485 Serial Communication
68 (P, TX+, RX+), 69 (N, TX-, RX-)
61 common for terminals 68 and 69
6.4.10 Control Card, 24 V DC Output
6.4.11 Relay Output
Programmable relay outputs
Relay 01 and 02 (enclosure size I2–I4)
01–03 (NC), 01–02 (NO), 04–06 (NC), 04–05 (NO)
Maximum terminal load (AC-1)
(1)
on 01–02/04–05 (NO) (resistive
load)
Maximum terminal load (AC-15)
(1)
on 01–02/04–05 (NO) (induc-
tive load @ cosφ 0.4)
Maximum terminal load (DC-1)
(1)
on 01–02/04–05 (NO) (resistive
load)
Maximum terminal load (DC-13)
(1)
on 01–02/04–05 (NO) (induc-
tive load)
Maximum terminal load (AC-1)
(1)
on 01–03/04–06 (NC) (resistive
load)
Maximum terminal load (AC-15)
(1)
on 01–03/04–06 (NC) (inductive
load @ cosφ 0.4)
Maximum terminal load (DC-1)
(1)
on 01–03/04–06 (NC) (resistive
load)
Minimum terminal load on 01–03 (NC), 01–02 (NO)
24 V DC 10 mA, 24 V AC 20 mA
Environment according to EN 60664-1
Overvoltage category III/pollution degree 2
1
IEC 60947 parts 4 and 5. Endurance of the relay varies with different load type, switching current, ambient temperature, driving configuration,
working profile, and so forth. It is recommended to mount a snubber circuit when connecting inductive loads to the relays.
Programmable relay outputs
Maximum terminal load (AC-1)
(1)
on 01–03 (NC), 01–02 (NO) (resis-
tive load)
Maximum terminal load (AC-15)
(1)
(inductive load @ cosφ 0.4)
Maximum terminal load (DC-1)
(1)
on 01–02 (NO), 01–03 (NC) (resis-
tive load)
Maximum terminal load (DC-13)
(1)
(inductive load)
Relay 01 and 02 terminal number (enclosure size I6–I8)
01–03 (NC), 01–02 (NO), 04–06 (NC), 04– 05 (NO)
AQ367426199594en-000101 / 130R098850 | Danfoss A/S © 2021.06
Specifications
VLT® HVAC Drive FC 131
Operating Guide