| L1, L2, L3: | Mains connection: 3~440 V ±10%, 50/60 Hz; 3~400 V ±10%, 50/60 Hz; 3~380 V -5%/+10%, 50/60 Hz |
| PE: | Protective conductor connection |
| DDG: | Connection for differential pressure sensor |
| In1 (1): | Actual value input 0-10 V/0-20 mA; 2-10 V/4-20 mA |
| GND (2): | Ground connection for In1 and In2 |
| + 24 V (3): | DC voltage output for an external consumer/sensor. Max load 60 mA |
| In2: | Setpoint input 0-10 V/0-20 mA; 2-10 V/4-20 mA |
| MP: | Multi-pump, interface for dual pump management |
| Ext. off: | Control input “Overriding Off”
The pump can be switched on or off via an external, potential-free contact (24 V DC/10 mA). |
| SBM:* | Potential-free collective run signal (changeover contact according to VDI 3814) |
| SSM:* | Potential-free collective fault signal (changeover contact according to VDI 3814) |
| aux: | External pump cycling (only with dual pump
operation). Pump cycling can be performed using an external, potential-free contact (24 VDC/10 mA) |
| DIP switch: | 1: Switchover between operation (O) and service mode (S)
2: Activate/deactivate the menu for access disable |
| Optional: | IF-Modules for connection to the building automation |
* Load capacity of contacts for SBM and SSM: min.: 12 V DC/10 mA max.: 250 V AC/1 A |
